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1. Hyper Suprime-Cam Year 3 results: Cosmology from cosmic shear two-point correlation functions

Author

Li, Xiangchong, Zhang, Tianqing, Sugiyama, Sunao, Dalal, Roohi, Terasawa, Ryo, Rau, Markus M, Mandelbaum, Rachel, Takada, Masahiro, More, Surhud, Strauss, Michael A, Miyatake, Hironao, Shirasaki, Masato, Hamana, Takashi, Oguri, Masamune, Luo, Wentao, Nishizawa, Atsushi J, Takahashi, Ryuichi, Nicola, Andrina, Osato, Ken, Kannawadi, Arun, Sunayama, Tomomi, Armstrong, Robert, Bosch, James, Komiyama, Yutaka, Lupton, Robert H, Lust, Nate B, MacArthur, Lauren A, Miyazaki, Satoshi, Murayama, Hitoshi, Nishimichi, Takahiro, Okura, Yuki, Price, Paul A, Tait, Philip J, Tanaka, Masayuki, and Wang, Shiang-Yu

Subjects
Particle and High Energy Physics, Physical Sciences
Abstract

We perform a blinded cosmology analysis with cosmic shear two-point correlation functions measured from more than 25 million galaxies in the Hyper Suprime-Cam three-year shear catalog in four tomographic redshift bins ranging from 0.3 to 1.5. After conservative masking and galaxy selection, the survey covers 416 deg2 of the northern sky with an effective galaxy number density of 15 arcmin-2 over the four redshift bins. The 2PCFs adopted for cosmology analysis are measured in the angular range; 7.1

Published
2023

2. Quasar Luminosity Function at z = 7

Author

Matsuoka, Yoshiki, Onoue, Masafusa, Iwasawa, Kazushi, Strauss, Michael A., Kashikawa, Nobunari, Izumi, Takuma, Nagao, Tohru, Imanishi, Masatoshi, Akiyama, Masayuki, Silverman, John D., Asami, Naoko, Bosch, James, Furusawa, Hisanori, Goto, Tomotsugu, Gunn, James E., Harikane, Yuichi, Ikeda, Hiroyuki, Inayoshi, Kohei, Ishimoto, Rikako, Kawaguchi, Toshihiro, Kikuta, Satoshi, Kohno, Kotaro, Komiyama, Yutaka, Lee, Chien-Hsiu, Lupton, Robert H., Minezaki, Takeo, Miyazaki, Satoshi, Murayama, Hitoshi, Nishizawa, Atsushi J., Oguri, Masamune, Ono, Yoshiaki, Oogi, Taira, Ouchi, Masami, Price, Paul A., Sameshima, Hiroaki, Sugiyama, Naoshi, Tait, Philip J., Takada, Masahiro, Takahashi, Ayumi, Takata, Tadafumi, Tanaka, Masayuki, Toba, Yoshiki, Wang, Shiang-Yu, and Yamashita, Takuji

Subjects
Astrophysics - Astrophysics of Galaxies
Abstract

We present the quasar luminosity function (LF) at $z = 7$, measured with 35 spectroscopically confirmed quasars at $6.55 < z < 7.15$. The sample of 22 quasars from the Subaru High-$z$ Exploration of Low-Luminosity Quasars (SHELLQs) project, combined with 13 brighter quasars in the literature, covers an unprecedentedly wide range of rest-frame ultraviolet magnitudes over $-28 < M_{1450} < -23$. We found that the binned LF flattens significantly toward the faint end populated by the SHELLQs quasars. A maximum likelihood fit to a double power-law model has a break magnitude $M^*_{1450} = -25.60^{+0.40}_{-0.30}$, a characteristic density $\Phi^* = 1.35^{+0.47}_{-0.30}$ Gpc$^{-3}$ mag$^{-1}$, and a bright-end slope $\beta = -3.34^{+0.49}_{-0.57}$, when the faint-end slope is fixed to $\alpha = -1.2$ as observed at $z \le 6$. The overall LF shape remains remarkably similar from $z = 4$ to $7$, while the amplitude decreases substantially toward higher redshifts, with a clear indication of an accelerating decline at $z \ge 6$. The estimated ionizing photon density, $10^{48.2 \pm 0.1}$ s$^{-1}$ Mpc$^{-3}$, is less than 1 % of the critical rate to keep the intergalactic medium ionized at $z = 7$, and thus indicates that quasars are not a major contributor to cosmic reionization., Comment: The Astrophysical Journal Letters, in press

Published
2023
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3. Hyper Suprime-Cam Year 3 Results: Cosmology from Galaxy Clustering and Weak Lensing with HSC and SDSS using the Minimal Bias Model

Author

Sugiyama, Sunao, Miyatake, Hironao, More, Surhud, Li, Xiangchong, Shirasaki, Masato, Takada, Masahiro, Kobayashi, Yosuke, Takahashi, Ryuichi, Nishimichi, Takahiro, Nishizawa, Atsushi J., Rau, Markus M., Zhang, Tianqing, Dalal, Roohi, Mandelbaum, Rachel, Strauss, Michael A., Hamana, Takashi, Oguri, Masamune, Osato, Ken, Kannawadi, Arun, Armstrong, Robert, Komiyama, Yutaka, Lupton, Robert H., Lust, Nate B., Miyazaki, Satoshi, Murayama, Hitoshi, Okura, Yuki, Price, Paul A., Tait, Philip J., Tanaka, Masayuki, and Wang, Shiang-Yu

Subjects
Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

We present cosmological parameter constraints from a blind joint analysis of three two-point correlation functions measured from the Year 3 Hyper Suprime-Cam (HSC-Y3) imaging data, covering 416 deg$^2$, and the SDSS DR11 spectroscopic galaxies spanning the redshift range $[0.15, 0.70]$. We subdivide the SDSS galaxies into three volume-limited samples separated in redshift, each of which acts as a large-scale structure tracer characterized by the measurement of the projected correlation function, $w_{\rm p}(R)$. We also use the measurements of the galaxy-galaxy weak lensing signal $\Delta \Sigma(R)$ for each of these SDSS samples which act as lenses for a secure sample of source galaxies selected from the HSC-Y3 shape catalog based on their photometric redshifts. We combine these measurements with the cosmic shear correlation functions, $\xi_{\pm}(\vartheta)$, measured for our HSC source sample. We model these observables with the minimal bias model of the galaxy clustering observables in the context of a flat $\Lambda$CDM cosmology. We use conservative scale cuts, $R>12$ and $8~h^{-1}$Mpc, for $\Delta\Sigma$ and $w_{\rm p}$, respectively, where the minimal bias model is valid, in addition to conservative prior on the residual bias in the mean redshift of the HSC photometric source galaxies. Our baseline analysis yields $S_8=0.775^{+0.043}_{-0.038}$ (68% C.I.) for the $\Lambda$CDM model, after marginalizing over uncertainties in other parameters. Our value of $S_8$ is consistent with that from the Planck 2018 data, but the credible interval of our result is still relatively large. Our results are statistically consistent with those of a companion paper, which extends this analysis to smaller scales with an emulator-based halo model., Comment: 29 pages, 17 figures, 4 tables, version accepted for publication in PRD together with other HSC Y3 weak lensing cosmology papers - see https://hsc-release.mtk.nao.ac.jp/doc/index.php/wly3/

Published
2023
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4. Hyper Suprime-Cam Year 3 Results: Cosmology from Galaxy Clustering and Weak Lensing with HSC and SDSS using the Emulator Based Halo Model

Author

Miyatake, Hironao, Sugiyama, Sunao, Takada, Masahiro, Nishimichi, Takahiro, Li, Xiangchong, Shirasaki, Masato, More, Surhud, Kobayashi, Yosuke, Nishizawa, Atsushi J., Rau, Markus M., Zhang, Tianqing, Takahashi, Ryuichi, Dalal, Roohi, Mandelbaum, Rachel, Strauss, Michael A., Hamana, Takashi, Oguri, Masamune, Osato, Ken, Luo, Wentao, Kannawadi, Arun, Hsieh, Bau-Ching, Armstrong, Robert, Komiyama, Yutaka, Lupton, Robert H., Lust, Nate B., MacArthur, Lauren A., Miyazaki, Satoshi, Murayama, Hitoshi, Okura, Yuki, Price, Paul A., Sunayama, Tomomi, Tait, Philip J., Tanaka, Masayuki, and Wang, Shiang-Yu

Subjects
Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

We present cosmology results from a blinded joint analysis of cosmic shear, $\xi_{\pm}(\vartheta)$, galaxy-galaxy weak lensing, $\Delta\!\Sigma(R)$, and projected galaxy clustering, $w_{\rm p}(R)$, measured from the Hyper Suprime-Cam three-year (HSC-Y3) shape catalog and the Sloan Digital Sky Survey (SDSS) DR11 spectroscopic galaxy catalog - a 3$\times$2pt cosmology analysis. We define luminosity-cut samples of SDSS galaxies to serve as the tracers of $w_{\rm p}$ and as the lens samples for $\Delta\!\Sigma$ in three spectroscopic redshift bins spanning the range $0.15

Published
2023

5. Hyper Suprime-Cam Year 3 Results: Measurements of Clustering of SDSS-BOSS Galaxies, Galaxy-Galaxy Lensing and Cosmic Shear

Author

More, Surhud, Sugiyama, Sunao, Miyatake, Hironao, Rau, Markus Michael, Shirasaki, Masato, Li, Xiangchong, Nishizawa, Atsushi J., Osato, Ken, Zhang, Tianqing, Takada, Masahiro, Hamana, Takashi, Takahashi, Ryuichi, Dalal, Roohi, Mandelbaum, Rachel, Strauss, Michael A., Kobayashi, Yosuke, Nishimichi, Takahiro, Oguri, Masamune, Luo, Wentao, Kannawadi, Arun, Hsieh, Bau-Ching, Armstrong, Robert, Bosch, James, Komiyama, Yutaka, Lupton, Robert H., Lust, Nate B., MacArthur, Lauren A., Miyazaki, Satoshi, Murayama, Hitoshi, Okura, Yuki, Price, Paul A., Tait, Philip J., Tanaka, Masayuki, and Wang, Shiang-Yu

Subjects
Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

We use the Sloan Digital Sky Survey (SDSS) BOSS galaxies and their overlap with approximately 416 sq. degree of deep $grizy$-band imaging from the Subaru Hyper Suprime-Cam Survey (HSC). We measure three two-point correlations that form the basis of the cosmological inference presented in our companion papers, Miyatake et al. and Sugiyama et al. We use three approximately volume limited subsamples of spectroscopic galaxies by their $i$-band magnitude from the SDSS-BOSS: LOWZ (0.1

Published
2023

6. Hyper Suprime-Cam Year 3 Results: Cosmology from Cosmic Shear Power Spectra

Author

Dalal, Roohi, Li, Xiangchong, Nicola, Andrina, Zuntz, Joe, Strauss, Michael A., Sugiyama, Sunao, Zhang, Tianqing, Rau, Markus M., Mandelbaum, Rachel, Takada, Masahiro, More, Surhud, Miyatake, Hironao, Kannawadi, Arun, Shirasaki, Masato, Taniguchi, Takanori, Takahashi, Ryuichi, Osato, Ken, Hamana, Takashi, Oguri, Masamune, Nishizawa, Atsushi J., Malagón, Andrés A. Plazas, Sunayama, Tomomi, Alonso, David, Slosar, Anže, Armstrong, Robert, Bosch, James, Komiyama, Yutaka, Lupton, Robert H., Lust, Nate B., MacArthur, Lauren A., Miyazaki, Satoshi, Murayama, Hitoshi, Nishimichi, Takahiro, Okura, Yuki, Price, Paul A., Tait, Philip J., Tanaka, Masayuki, and Wang, Shiang-Yu

Subjects
Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

We measure weak lensing cosmic shear power spectra from the three-year galaxy shear catalog of the Hyper Suprime-Cam (HSC) Subaru Strategic Program imaging survey. The shear catalog covers $416 \ \mathrm{deg}^2$ of the northern sky, with a mean $i$-band seeing of 0.59 arcsec and an effective galaxy number density of 15 $\mathrm{arcmin}^{-2}$ within our adopted redshift range. With an $i$-band magnitude limit of 24.5 mag, and four tomographic redshift bins spanning $0.3 \leq z_{\mathrm{ph}} \leq 1.5$ based on photometric redshifts, we obtain a high-significance measurement of the cosmic shear power spectra, with a signal-to-noise ratio of approximately 26.4 in the multipole range $300<\ell<1800$. The accuracy of our power spectrum measurement is tested against realistic mock shear catalogs, and we use these catalogs to get a reliable measurement of the covariance of the power spectrum measurements. We use a robust blinding procedure to avoid confirmation bias, and model various uncertainties and sources of bias in our analysis, including point spread function systematics, redshift distribution uncertainties, the intrinsic alignment of galaxies and the modeling of the matter power spectrum. For a flat $\Lambda$CDM model, we find $S_8 \equiv \sigma_8 (\Omega_m/0.3)^{0.5} =0.776^{+0.032}_{-0.033}$, which is in excellent agreement with the constraints from the other HSC Year 3 cosmology analyses, as well as those from a number of other cosmic shear experiments. This result implies a $\sim$$2\sigma$-level tension with the Planck 2018 cosmology. We study the effect that various systematic errors and modeling choices could have on this value, and find that they can shift the best-fit value of $S_8$ by no more than $\sim$$0.5\sigma$, indicating that our result is robust to such systematics., Comment: 35 pages, 18 figures, 6 tables, for coordinated submission to PRD with other HSC Y3 weak lensing cosmology papers - see https://hsc-release.mtk.nao.ac.jp/doc/index.php/wly3/

Published
2023
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7. Subaru High-z Exploration of Low-Luminosity Quasars (SHELLQs). XVI. 69 New Quasars at 5.8 < z < 7.0

Author

Matsuoka, Yoshiki, Iwasawa, Kazushi, Onoue, Masafusa, Izumi, Takuma, Kashikawa, Nobunari, Strauss, Michael A., Imanishi, Masatoshi, Nagao, Tohru, Akiyama, Masayuki, Silverman, John D., Asami, Naoko, Bosch, James, Furusawa, Hisanori, Goto, Tomotsugu, Gunn, James E., Harikane, Yuichi, Ikeda, Hiroyuki, Ishimoto, Rikako, Kawaguchi, Toshihiro, Kato, Nanako, Kikuta, Satoshi, Kohno, Kotaro, Komiyama, Yutaka, Lee, Chien-Hsiu, Lupton, Robert H., Minezaki, Takeo, Miyazaki, Satoshi, Murayama, Hitoshi, Nishizawa, Atsushi J., Oguri, Masamune, Ono, Yoshiaki, Ouchi, Masami, Price, Paul A., Sameshima, Hiroaki, Sugiyama, Naoshi, Tait, Philip J., Takada, Masahiro, Takahashi, Ayumi, Takata, Tadafumi, Tanaka, Masayuki, Toba, Yoshiki, Utsumi, Yousuke, Wang, Shiang-Yu, and Yamashita, Takuji

Subjects
Astrophysics - Astrophysics of Galaxies, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

We present the spectroscopic discovery of 69 quasars at 5.8 < z < 7.0, drawn from the Hyper Suprime-Cam (HSC) Subaru Strategic Program (SSP) imaging survey data. This is the 16th publication from the Subaru High-z Exploration of Low-Luminosity Quasars (SHELLQs) project, and completes identification of all but the faintest candidates (i.e., i-band dropouts with zAB < 24 and y-band detections, and z-band dropouts with yAB < 24) with Bayesian quasar probability Pq > 0.1 in the HSC-SSP third public data release (PDR3). The sample reported here also includes three quasars with Pq < 0.1 at z ~ 6.6, which we selected in an effort to completely cover the reddest point sources with simple color cuts. The number of high-z quasars discovered in SHELLQs has now grown to 162, including 23 type-II quasar candidates. This paper also presents identification of seven galaxies at 5.6 < z < 6.7, an [O III] emitter at z = 0.954, and 31 Galactic cool stars and brown dwarfs. High-z quasars and galaxies comprise 75 % and 16 % respectively of all the spectroscopic SHELLQs objects that pass our latest selection algorithm with the PDR3 photometry. That is, a total of 91 % of the objects lie at z > 5.6. This demonstrates that the algorithm has very high efficiency, even though we are probing an unprecedentedly low-luminosity population down to M1450 ~ -21 mag., Comment: Accepted for publication in The Astrophysical Journal Supplement Series

Published
2021
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8. Subaru High-z Exploration of Low-Luminosity Quasars (SHELLQs). X. Discovery of 35 Quasars and Luminous Galaxies at 5.7 $\le$ z $\le$ 7.0

Author

Matsuoka, Yoshiki, Iwasawa, Kazushi, Onoue, Masafusa, Kashikawa, Nobunari, Strauss, Michael A., Lee, Chien-Hsiu, Imanishi, Masatoshi, Nagao, Tohru, Akiyama, Masayuki, Asami, Naoko, Bosch, James, Furusawa, Hisanori, Goto, Tomotsugu, Gunn, James E., Harikane, Yuichi, Ikeda, Hiroyuki, Izumi, Takuma, Kawaguchi, Toshihiro, Kato, Nanako, Kikuta, Satoshi, Kohno, Kotaro, Komiyama, Yutaka, Koyama, Shuhei, Lupton, Robert H., Minezaki, Takeo, Miyazaki, Satoshi, Murayama, Hitoshi, Niida, Mana, Nishizawa, Atsushi J., Noboriguchi, Akatoki, Oguri, Masamune, Ono, Yoshiaki, Ouchi, Masami, Price, Paul A., Sameshima, Hiroaki, Schulze, Andreas, Silverman, John D., Sugiyama, Naoshi, Tait, Philip J., Takada, Masahiro, Takata, Tadafumi, Tanaka, Masayuki, Tang, Ji-Jia, Toba, Yoshiki, Utsumi, Yousuke, Wang, Shiang-Yu, and Yamashita, Takuji

Subjects
Astrophysics - Astrophysics of Galaxies
Abstract

We report the discovery of 28 quasars and 7 luminous galaxies at 5.7 $\le$ z $\le$ 7.0. This is the tenth in a series of papers from the Subaru High-z Exploration of Low-Luminosity Quasars (SHELLQs) project, which exploits the deep multi-band imaging data produced by the Hyper Suprime-Cam (HSC) Subaru Strategic Program survey. The total number of spectroscopically identified objects in SHELLQs has now grown to 93 high-z quasars, 31 high-z luminous galaxies, 16 [O III] emitters at z ~ 0.8, and 65 Galactic cool dwarfs (low-mass stars and brown dwarfs). These objects were found over 900 deg2, surveyed by HSC between 2014 March and 2018 January. The full quasar sample includes 18 objects with very strong and narrow Ly alpha emission, whose stacked spectrum is clearly different from that of other quasars or galaxies. While the stacked spectrum shows N V 1240 emission and resembles that of lower-z narrow-line quasars, the small Ly alpha width may suggest a significant contribution from the host galaxies. Thus these objects may be composites of quasars and star-forming galaxies., Comment: ApJ, in press. arXiv admin note: text overlap with arXiv:1803.01861

Published
2019
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9. Evidence for the Cross-correlation between Cosmic Microwave Background Polarization Lensing from POLARBEAR and Cosmic Shear from Subaru Hyper Suprime-Cam

Author

Namikawa, Toshiya, Chinone, Yuji, Miyatake, Hironao, Oguri, Masamune, Takahashi, Ryuichi, Kusaka, Akito, Katayama, Nobuhiko, Adachi, Shunsuke, Aguilar, Mario, Aihara, Hiroaki, Ali, Aamir, Armstrong, Robert, Arnold, Kam, Baccigalupi, Carlo, Barron, Darcy, Beck, Dominic, Beckman, Shawn, Bianchini, Federico, Boettger, David, Borrill, Julian, Cheung, Kolen, Corbett, Lance, Crowley, Kevin T., Bouhargani, Hamza El, Elleflot, Tucker, Errard, Josquin, Fabbian, Giulio, Feng, Chang, Galitzki, Nicholas, Goeckner-Wald, Neil, Groh, John, Hamada, Takaho, Hasegawa, Masaya, Hazumi, Masashi, Hill, Charles, Howe, Logan, Jeong, Oliver, Kaneko, Daisuke, Keating, Brian, Lee, Adrian T., Leon, David, Linder, Eric, Lowry, Lindsay Ng, Mangu, Aashrita, Matsuda, Frederick, Minami, Yuto, Miyazaki, Satoshi, Murayama, Hitoshi, Navaroli, Martin, Nishino, Haruki, Nishizawa, Atsushi J., Pham, Anh Thi Phuong, Poletti, Davide, Puglisi, Giuseppe, Reichardt, Christian L., Sherwin, Blake D., Silva-Feaver, Maximiliano, Siritanasak, Praween, Speagle, Joshua S., Stompor, Radek, Suzuki, Aritoki, Tait, Philip J., Tajima, Osamu, Takada, Masahiro, Takakura, Satoru, Takatori, Sayuri, Tanabe, Daiki, Tanaka, Masayuki, Teply, Grant P., Tsai, Calvin, Verges, Clara, Westbrook, Ben, Zhou, Yuyang, Collaboration, The POLARBEAR, and Collaboration, the Subaru HSC SSP

Subjects
Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

We present the first measurement of cross-correlation between the lensing potential, reconstructed from cosmic microwave background (CMB) {\it polarization} data, and the cosmic shear field from galaxy shapes. This measurement is made using data from the POLARBEAR CMB experiment and the Subaru Hyper Suprime-Cam (HSC) survey. By analyzing an 11~deg$^2$ overlapping region, we reject the null hypothesis at 3.5$\sigma$\ and constrain the amplitude of the {\bf cross-spectrum} to $\widehat{A}_{\rm lens}=1.70\pm 0.48$, where $\widehat{A}_{\rm lens}$ is the amplitude normalized with respect to the Planck~2018{} prediction, based on the flat $\Lambda$ cold dark matter cosmology. The first measurement of this {\bf cross-spectrum} without relying on CMB temperature measurements is possible due to the deep POLARBEAR map with a noise level of ${\sim}$6\,$\mu$K-arcmin, as well as the deep HSC data with a high galaxy number density of $n_g=23\,{\rm arcmin^{-2}}$. We present a detailed study of the systematics budget to show that residual systematics in our results are negligibly small, which demonstrates the future potential of this cross-correlation technique., Comment: 16 pages, 5 figures, Accepted for publication in ApJ

Published
2019
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10. Discovery of the First Low-Luminosity Quasar at z > 7

Author

Matsuoka, Yoshiki, Onoue, Masafusa, Kashikawa, Nobunari, Strauss, Michael A., Iwasawa, Kazushi, Lee, Chien-Hsiu, Imanishi, Masatoshi, Nagao, Tohru, Akiyama, Masayuki, Asami, Naoko, Bosch, James, Furusawa, Hisanori, Goto, Tomotsugu, Gunn, James E., Harikane, Yuichi, Ikeda, Hiroyuki, Izumi, Takuma, Kawaguchi, Toshihiro, Kato, Nanako, Kikuta, Satoshi, Kohno, Kotaro, Komiyama, Yutaka, Koyama, Shuhei, Lupton, Robert H., Minezaki, Takeo, Miyazaki, Satoshi, Murayama, Hitoshi, Niida, Mana, Nishizawa, Atsushi J., Noboriguchi, Akatoki, Oguri, Masamune, Ono, Yoshiaki, Ouchi, Masami, Price, Paul A., Sameshima, Hiroaki, Schulze, Andreas, Shirakata, Hikari, Silverman, John D., Sugiyama, Naoshi, Tait, Philip J., Takada, Masahiro, Takata, Tadafumi, Tanaka, Masayuki, Tang, Ji-Jia, Toba, Yoshiki, Utsumi, Yousuke, Wang, Shiang-Yu, and Yamashita, Takuji

Subjects
Astrophysics - Astrophysics of Galaxies
Abstract

We report the discovery of a quasar at z = 7.07, which was selected from the deep multi-band imaging data collected by the Hyper Suprime-Cam (HSC) Subaru Strategic Program survey. This quasar, HSC J124353.93+010038.5, has an order of magnitude lower luminosity than do the other known quasars at z > 7. The rest-frame ultraviolet absolute magnitude is M1450 = -24.13 +/- 0.08 mag and the bolometric luminosity is Lbol = (1.4 +/- 0.1) x 10^{46} erg/s. Its spectrum in the optical to near-infrared shows strong emission lines, and shows evidence for a fast gas outflow, as the C IV line is blueshifted and there is indication of broad absorption lines. The Mg II-based black hole mass is Mbh = (3.3 +/- 2.0) x 10^8 Msun, thus indicating a moderate mass accretion rate with an Eddington ratio 0.34 +/- 0.20. It is the first z > 7 quasar with sub-Eddington accretion, besides being the third most distant quasar, known to date. The luminosity and black hole mass are comparable to, or even lower than, those measured for the majority of low-z quasars discovered by the Sloan Digital Sky Survey, and thus this quasar likely represents a z > 7 counterpart to quasars commonly observed in the low-z universe., Comment: Accepted for publication in ApJ Letters

Published
2019
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11. Subaru High-z Exploration of Low-Luminosity Quasars (SHELLQs). V. Quasar Luminosity Function and Contribution to Cosmic Reionization at z = 6

Author

Matsuoka, Yoshiki, Strauss, Michael A., Kashikawa, Nobunari, Onoue, Masafusa, Iwasawa, Kazushi, Tang, Ji-Jia, Lee, Chien-Hsiu, Imanishi, Masatoshi, Nagao, Tohru, Akiyama, Masayuki, Asami, Naoko, Bosch, James, Furusawa, Hisanori, Goto, Tomotsugu, Gunn, James E., Harikane, Yuichi, Ikeda, Hiroyuki, Izumi, Takuma, Kawaguchi, Toshihiro, Kato, Nanako, Kikuta, Satoshi, Kohno, Kotaro, Komiyama, Yutaka, Lupton, Robert H., Minezaki, Takeo, Miyazaki, Satoshi, Murayama, Hitoshi, Niida, Mana, Nishizawa, Atsushi J., Noboriguchi, Akatoki, Oguri, Masamune, Ono, Yoshiaki, Ouchi, Masami, Price, Paul A., Sameshima, Hiroaki, Schulze, Andreas, Shirakata, Hikari, Silverman, John D., Sugiyama, Naoshi, Tait, Philip J., Takada, Masahiro, Takata, Tadafumi, Tanaka, Masayuki, Toba, Yoshiki, Utsumi, Yousuke, Wang, Shiang-Yu, and Yamashita, Takuji

Subjects
Astrophysics - Astrophysics of Galaxies
Abstract

We present new measurements of the quasar luminosity function (LF) at $z \sim 6$, over an unprecedentedly wide range of the rest-frame ultraviolet luminosity $M_{1450}$ from $-30$ to $-22$ mag. This is the fifth in a series of publications from the Subaru High-$z$ Exploration of Low-Luminosity Quasars (SHELLQs) project, which exploits the deep multi-band imaging data produced by the Hyper Suprime-Cam (HSC) Subaru Strategic Program survey. The LF was calculated with a complete sample of 110 quasars at $5.7 \le z \le 6.5$, which includes 48 SHELLQs quasars discovered over 650 deg$^2$, and 63 brighter quasars discovered by the Sloan Digital Sky Survey and the Canada-France-Hawaii Quasar Survey (including one overlapping object). This is the largest sample of $z \sim 6$ quasars with a well-defined selection function constructed to date, and has allowed us to detect significant flattening of the LF at its faint end. A double power-law function fit to the sample yields a faint-end slope $\alpha = -1.23^{+0.44}_{-0.34}$, a bright-end slope $\beta = -2.73^{+0.23}_{-0.31}$, a break magnitude $M_{1450}^* = -24.90^{+0.75}_{-0.90}$, and a characteristic space density $\Phi^* = 10.9^{+10.0}_{-6.8}$ Gpc$^{-3}$ mag$^{-1}$. Integrating this best-fit model over the range $-18 < M_{1450} < -30$ mag, quasars emit ionizing photons at the rate of $\dot{n}_{\rm ion} = 10^{48.8 \pm 0.1}$ s$^{-1}$ Mpc$^{-3}$ at $z = 6.0$. This is less than 10 % of the critical rate necessary to keep the intergalactic medium ionized, which indicates that quasars are not a major contributor to cosmic reionization., Comment: Accepted for publication in ApJ

Published
2018
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12. Subaru High-z Exploration of Low-Luminosity Quasars (SHELLQs). II. Discovery of 32 Quasars and Luminous Galaxies at 5.7 < z < 6.8

Author

Matsuoka, Yoshiki, Onoue, Masafusa, Kashikawa, Nobunari, Iwasawa, Kazushi, Strauss, Michael A., Nagao, Tohru, Imanishi, Masatoshi, Lee, Chien-Hsiu, Akiyama, Masayuki, Asami, Naoko, Bosch, James, Foucaud, Sebastien, Furusawa, Hisanori, Goto, Tomotsugu, Gunn, James E., Harikane, Yuichi, Ikeda, Hiroyuki, Izumi, Takuma, Kawaguchi, Toshihiro, Kikuta, Satoshi, Kohno, Kotaro, Komiyama, Yutaka, Lupton, Robert H., Minezaki, Takeo, Miyazaki, Satoshi, Morokuma, Tomoki, Murayama, Hitoshi, Niida, Mana, Nishizawa, Atsushi J., Oguri, Masamune, Ono, Yoshiaki, Ouchi, Masami, Price, Paul A., Sameshima, Hiroaki, Schulze, Andreas, Shirakata, Hikari, Silverman, John D., Sugiyama, Naoshi, Tait, Philip J., Takada, Masahiro, Takata, Tadafumi, Tanaka, Masayuki, Tang, Ji-Jia, Toba, Yoshiki, Utsumi, Yousuke, and Wang, Shiang-Yu

Subjects
Astrophysics - Astrophysics of Galaxies, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

We present spectroscopic identification of 32 new quasars and luminous galaxies discovered at 5.7 < z < 6.8. This is the second in a series of papers presenting the results of the Subaru High-z Exploration of Low-Luminosity Quasars (SHELLQs) project, which exploits the deep multi-band imaging data produced by the Hyper Suprime-Cam (HSC) Subaru Strategic Program survey. The photometric candidates were selected by a Bayesian probabilistic algorithm, and then observed with spectrographs on the Gran Telescopio Canarias and the Subaru Telescope. Combined with the sample presented in the previous paper, we have now identified 64 HSC sources over about 430 deg2, which include 33 high-z quasars, 14 high-z luminous galaxies, 2 [O III] emitters at z ~ 0.8, and 15 Galactic brown dwarfs. The new quasars have considerably lower luminosity (M1450 ~ -25 to -22 mag) than most of the previously known high-z quasars. Several of these quasars have luminous (> 10^(43) erg/s) and narrow (< 500 km/s) Ly alpha lines, and also a possible mini broad absorption line system of N V 1240 in the composite spectrum, which clearly separate them from typical quasars. On the other hand, the high-z galaxies have extremely high luminosity (M1450 ~ -24 to -22 mag) compared to other galaxies found at similar redshift. With the discovery of these new classes of objects, we are opening up new parameter spaces in the high-z Universe. Further survey observations and follow-up studies of the identified objects, including the construction of the quasar luminosity function at z ~ 6, are ongoing., Comment: Accepted for publication in PASJ (HSC special issue); minor revisions made since ver. 1 and 2

Published
2017
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13. First Data Release of the Hyper Suprime-Cam Subaru Strategic Program

Author

Aihara, Hiroaki, Armstrong, Robert, Bickerton, Steven, Bosch, James, Coupon, Jean, Furusawa, Hisanori, Hayashi, Yusuke, Ikeda, Hiroyuki, Kamata, Yukiko, Karoji, Hiroshi, Kawanomoto, Satoshi, Koike, Michitaro, Komiyama, Yutaka, Lupton, Robert H., Mineo, Sogo, Miyatake, Hironao, Miyazaki, Satoshi, Morokuma, Tomoki, Obuchi, Yoshiyuki, Oishi, Yukie, Okura, Yuki, Price, Paul A., Takata, Tadafumi, Tanaka, Manobu M., Tanaka, Masayuki, Tanaka, Yoko, Uchida, Tomohisa, Uraguchi, Fumihiro, Utsumi, Yousuke, Wang, Shiang-Yu, Yamada, Yoshihiko, Yamanoi, Hitomi, Yasuda, Naoki, Arimoto, Nobuo, Chiba, Masashi, Finet, Francois, Fujimori, Hiroki, Fujimoto, Seiji, Furusawa, Junko, Goto, Tomotsugu, Goulding, Andy, Gunn, James E., Harikane, Yuichi, Hattori, Takashi, Hayashi, Masao, Helminiak, Krzysztof G., Higuchi, Ryo, Hikage, Chiaki, Ho, Paul T. P., Hsieh, Bau-Ching, Huang, Kuiyun, Huang, Song, Imanishi, Masatoshi, Iwata, Ikuru, Jaelani, Anton T., Jian, Hung-Yu, Kashikawa, Nobunari, Katayama, Nobuhiko, Kojima, Takashi, Konno, Akira, Koshida, Shintaro, Kusakabe, Haruka, Leauthaud, Alexie, Lee, C. -H., Lin, Lihwai, Lin, Yen-Ting, Mandelbaum, Rachel, Matsuoka, Yoshiki, Medezinski, Elinor, Miyama, Shoken, Momose, Rieko, More, Anupreeta, More, Surhud, Mukae, Shiro, Murata, Ryoma, Murayama, Hitoshi, Nagao, Tohru, Nakata, Fumiaki, Niikura, Hiroko, Nishizawa, Atsushi J., Oguri, Masamune, Okabe, Nobuhiro, Ono, Yoshiaki, Onodera, Masato, Onoue, Masafusa, Ouchi, Masami, Pyo, Tae-Soo, Shibuya, Takatoshi, Shimasaku, Kazuhiro, Simet, Melanie, Speagle, Joshua, Spergel, David N., Strauss, Michael A., Sugahara, Yuma, Sugiyama, Naoshi, Suto, Yasushi, Suzuki, Nao, Tait, Philip J., Takada, Masahiro, Terai, Tsuyoshi, Toba, Yoshiki, Turner, Edwin L., Uchiyama, Hisakazu, Umetsu, Keiichi, Urata, Yuji, Usuda, Tomonori, Yeh, Sherry, and Yuma, Suraphong

Subjects
Astrophysics - Instrumentation and Methods for Astrophysics, Astrophysics - Earth and Planetary Astrophysics, Astrophysics - Astrophysics of Galaxies, Astrophysics - High Energy Astrophysical Phenomena, Astrophysics - Solar and Stellar Astrophysics
Abstract

The Hyper Suprime-Cam Subaru Strategic Program (HSC-SSP) is a three-layered imaging survey aimed at addressing some of the most outstanding questions in astronomy today, including the nature of dark matter and dark energy. The survey has been awarded 300 nights of observing time at the Subaru Telescope and it started in March 2014. This paper presents the first public data release of HSC-SSP. This release includes data taken in the first 1.7 years of observations (61.5 nights) and each of the Wide, Deep, and UltraDeep layers covers about 108, 26, and 4 square degrees down to depths of i~26.4, ~26.5, and ~27.0 mag, respectively (5sigma for point sources). All the layers are observed in five broad bands (grizy), and the Deep and UltraDeep layers are observed in narrow bands as well. We achieve an impressive image quality of 0.6 arcsec in the i-band in the Wide layer. We show that we achieve 1-2 per cent PSF photometry (rms) both internally and externally (against Pan-STARRS1), and ~10 mas and 40 mas internal and external astrometric accuracy, respectively. Both the calibrated images and catalogs are made available to the community through dedicated user interfaces and database servers. In addition to the pipeline products, we also provide value-added products such as photometric redshifts and a collection of public spectroscopic redshifts. Detailed descriptions of all the data can be found online. The data release website is https://hsc-release.mtk.nao.ac.jp/., Comment: 34 pages, 20 figures, 7 tables, moderate revision, accepted for publication in PASJ

Published
2017
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14. A new quadruple gravitational lens from the Hyper Suprime-Cam Survey: the puzzle of HSC~J115252+004733

Author

More, Anupreeta, Lee, Chien-Hsiu, Oguri, Masamune, Ono, Yoshiaki, Suyu, Sherry H., Chan, James H. H., Silverman, John D., More, Surhud, Schulze, Andreas, Komiyama, Yutaka, Matsuoka, Yoshiki, Miyazaki, Satoshi, Nagao, Tohru, Ouchi, Masami, Tait, Philip J., Tanaka, Manobu M., Tanaka, Masayuki, Usuda, Tomonori, and Yasuda, Naoki

Subjects
Astrophysics - Cosmology and Nongalactic Astrophysics, Astrophysics - Astrophysics of Galaxies
Abstract

We report the serendipitous discovery of a quadruply lensed source at $z_{\rm s}=3.76$, HSC~J115252+004733, from the Hyper Suprime-Cam (HSC) Survey. The source is lensed by an early-type galaxy at $z_{\rm l}=0.466$ and a satellite galaxy. Here, we investigate the properties of the source by studying its size and luminosity from the imaging and the luminosity and velocity width of the Ly-$\alpha$ line from the spectrum. Our analyses suggest that the source is most probably a low-luminosity active galactic nucleus (LLAGN) but the possibility of it being a compact bright galaxy (e.g., a Lyman-$\alpha$ emitter or Lyman Break Galaxy) cannot be excluded. The brighter pair of lensed images appears point-like except in the HSC $i$-band (with a seeing $\sim0.5"$). The extended emission in the $i$-band image could be due to the host galaxy underneath the AGN, or alternatively, due to a highly compact lensed galaxy (without AGN) which appears point-like in all bands except in $i$-band. We also find that the flux ratio of the brighter pair of images is different in the Ks-band compared to optical wavelengths. Phenomena such as differential extinction and intrinsic variability cannot explain this chromatic variation. While microlensing from stars in the foreground galaxy is less likely to be the cause, it cannot be ruled out completely. If the galaxy hosts an AGN, then this represents the highest redshift quadruply imaged AGN known to date, enabling study of a distant LLAGN. Discovery of this unusually compact and faint source demonstrates the potential of the HSC survey., Comment: 9 pages, 7 figures, 3 Tables, MNRAS accepted, text reduced

Published
2016
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15. Prime Focus Spectrograph (PFS) for the Subaru Telescope: Overview, recent progress, and future perspectives

Author

Tamura, Naoyuki, Takato, Naruhisa, Shimono, Atsushi, Moritani, Yuki, Yabe, Kiyoto, Ishizuka, Yuki, Ueda, Akitoshi, Kamata, Yukiko, Aghazarian, Hrand, Arnouts, Stephane, Barban, Gabriel, Barkhouser, Robert H., Borges, Renato C., Braun, David F., Carr, Michael A., Chabaud, Pierre-Yves, Chang, Yin-Chang, Chen, Hsin-Yo, Chiba, Masashi, Chou, Richard C. Y., Chu, You-Hua, Cohen, Judith G., de Almeida, Rodrigo P., de Oliveira, Antonio C., de Oliveira, Ligia S., Dekany, Richard G., Dohlen, Kjetil, Santos, Jesulino B. dos, Santos, Leandro H. dos, Ellis, Richard S., Fabricius, Maximilian, Ferrand, Didier, Ferreira, Decio, Golebiowski, Mirek, Greene, Jenny E., Gross, Johannes, Gunn, James E., Hammond, Randolph, Harding, Albert, Hart, Murdock, Heckman, Timothy M., Hirata, Christopher M., Ho, Paul, Hope, Stephen C., Hovland, Larry, Hsu, Shu-Fu, Hu, Yen-Shan, Huang, Ping-Jie, Jaquet, Marc, Jing, Yipeng, Karr, Jennifer, Kimura, Masahiko, King, Matthew E., Komatsu, Eiichiro, Brun, Vincent Le, Fevre, Olivier Le, Fur, Arnaud Le, Mignant, David Le, Ling, Hung-Hsu, Loomis, Craig P., Lupton, Robert H., Madec, Fabrice, Mao, Peter, Marrara, Lucas S., de Oliveira, Claudia Mendes, Minowa, Yosuke, Morantz, Chaz N., Murayama, Hitoshi, Murray, Graham J., Ohyama, Youichi, Orndorff, Joseph, Pascal, Sandrine, Pereira, Jefferson M., Reiley, Daniel J., Reinecke, Martin, Ritter, Andreas, Roberts, Mitsuko, Schwochert, Mark A., Seiffert, Michael D., Smee, Stephen A., Sodre Jr., Laerte, Spergel, David N., Steinkraus, Aaron J., Strauss, Michael A., Surace, Christian, Suto, Yasushi, Suzuki, Nao, Swinbank, John, Tait, Philip J., Takada, Masahiro, Tamura, Tomonori, Tanaka, Yoko, Tresse, Laurence, Verducci Jr., Orlando, Vibert, Didier, Vidal, Clement, Wang, Shiang-Yu, Wen, Chih-Yi, Yan, Chi-Hung, and Yasuda, Naoki

Subjects
Astrophysics - Instrumentation and Methods for Astrophysics, Astrophysics - Cosmology and Nongalactic Astrophysics, Astrophysics - Astrophysics of Galaxies
Abstract

PFS (Prime Focus Spectrograph), a next generation facility instrument on the 8.2-meter Subaru Telescope, is a very wide-field, massively multiplexed, optical and near-infrared spectrograph. Exploiting the Subaru prime focus, 2394 reconfigurable fibers will be distributed over the 1.3 deg field of view. The spectrograph has been designed with 3 arms of blue, red, and near-infrared cameras to simultaneously observe spectra from 380nm to 1260nm in one exposure at a resolution of ~1.6-2.7A. An international collaboration is developing this instrument under the initiative of Kavli IPMU. The project is now going into the construction phase aiming at undertaking system integration in 2017-2018 and subsequently carrying out engineering operations in 2018-2019. This article gives an overview of the instrument, current project status and future paths forward., Comment: 17 pages, 10 figures. Proceeding of SPIE Astronomical Telescopes and Instrumentation 2016

Published
2016
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16. A weak lensing view of the downsizing of star-forming galaxies

Author

Utsumi, Yousuke, Geller, Margaret J., Dell'Antonio, Ian P., Kamata, Yukiko, Kawanomoto, Satoshi, Koike, Michitaro, Komiyama, Yutaka, Koshida, Shintaro, Mineo, Sogo, Miyazaki, Satoshi, Sakurai, Jyunya, Tait, Philip J., Terai, Tsuyoshi, Tomono, Daigo, Usuda, Tomonori, Yamada, Yoshihiko, and Zahid, Harus J.

Subjects
Astrophysics - Astrophysics of Galaxies, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

We describe a weak lensing view of the downsizing of star forming galaxies based on cross correlating a weak lensing ($\kappa$) map with a predicted map constructed from a redshift survey. Moderately deep and high resolution images with Subaru/Hyper Suprime-Cam covering the 4 deg^2 DLS F2 field provide a $\kappa$ map with 1 arcmin resolution. A dense complete redshift survey of the F2 field including 12,705 galaxies with $R\leq20.6$ is the basis for construction of the predicted map. The zero-lag cross-correlation between the \kappa and predicted maps is significant at the $30\sigma$ level. The width of the cross-correlation peak is comparable with the angular scale of rich cluster at $z\sim0.3$, the median depth of the redshift survey. Slices of the predicted map in $\delta{z} = 0.05$ redshift bins enable exploration of the impact of structure as a function of redshift. The zero-lag normalised cross-correlation has significant local maxima at redshifts coinciding with known massive X-ray clusters. Even in slices where there are no known massive clusters, there is significant signal in the cross-correlation originating from lower mass groups that trace the large-scale of the universe. Spectroscopic $D_n4000$ measurements enable division of the sample into star-forming and quiescent populations. The significance of the cross-correlation with structure containing star-forming galaxies increases with redshift from $5\sigma$ at $z = 0.3$ to $7 \sigma$ at $z = 0.5$. The weak lensing results are consistent with the downsizing view of galaxy evolution established on the basis of many other independent studies., Comment: Accepted for publication in ApJ

Published
2016
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17. Galaxy-scale gravitational lens candidates from the Hyper Suprime-Cam imaging survey and the Galaxy And Mass Assembly spectroscopic survey

Author

Chan, James H. H., Suyu, Sherry H., More, Anupreeta, Oguri, Masamune, Chiueh, Tzihong, Coupon, Jean, Hsieh, Bau-Ching, Komiyama, Yutaka, Miyazaki, Satoshi, Murayama, Hitoshi, Nishizawa, Atsushi J., Price, Paul, Tait, Philip J., Terai, Tsuyoshi, Utsumi, Yousuke, and Wang, Shiang-Yu

Subjects
Astrophysics - Astrophysics of Galaxies
Abstract

We present a list of galaxy-scale lens candidates including a highly probable interacting galaxy-scale lens in the Hyper Suprime-Cam (HSC) imaging survey. We combine HSC imaging with the blended-spectra catalog from the Galaxy And Mass Assembly (GAMA) survey to identify lens candidates, and use lens mass modeling to confirm the candidates. We find 46 matches between the HSC S14A_0b imaging data release and the GAMA catalog. Ten of them are probable lens systems according to their morphology and redshifts. There is one system with an interacting galaxy pair, HSC J084928+000949, that has a valid mass model. We predict the total mass enclosed by the Einstein radius of $\sim0.72$" ($\sim1.65$kpc) for this new expected lens system to be $\sim10^{10.59}M_{\odot}$. Using the photometry in the {\it grizy} bands of the HSC survey and stellar population synthesis modeling with a Salpeter stellar initial mass function, we estimate the stellar mass within the Einstein radius to be $\sim10^{10.46}\,M_{\odot}$. We thus find a dark matter mass fraction within the Einstein radius of $\sim25\%$. Further spectroscopy or high-resolution imaging would allow confirmation of the nature of these lens candidates. The particular system with the interacting galaxy pair, if confirmed, would provide an opportunity to study the interplay between dark matter and stars as galaxies build up through hierarchical mergers., Comment: 10 pages, 5 figures

Published
2016
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18. Subaru high-z exploration of low-luminosity quasars (SHELLQs). I. Discovery of 15 quasars and bright galaxies at 5.7 < z < 6.9

Author

Matsuoka, Yoshiki, Onoue, Masafusa, Kashikawa, Nobunari, Iwasawa, Kazushi, Strauss, Michael A., Nagao, Tohru, Imanishi, Masatoshi, Niida, Mana, Toba, Yoshiki, Akiyama, Masayuki, Asami, Naoko, Bosch, James, Foucaud, Sébastien, Furusawa, Hisanori, Goto, Tomotsugu, Gunn, James E., Harikane, Yuichi, Ikeda, Hiroyuki, Kawaguchi, Toshihiro, Kikuta, Satoshi, Komiyama, Yutaka, Lupton, Robert H., Minezaki, Takeo, Miyazaki, Satoshi, Morokuma, Tomoki, Murayama, Hitoshi, Nishizawa, Atsushi J., Ono, Yoshiaki, Ouchi, Masami, Price, Paul A., Sameshima, Hiroaki, Silverman, John D., Sugiyama, Naoshi, Tait, Philip J., Takada, Masahiro, Takata, Tadafumi, Tanaka, Masayuki, Tang, Ji-Jia, and Utsumi, Yousuke

Subjects
Astrophysics - Astrophysics of Galaxies, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

We report the discovery of 15 quasars and bright galaxies at 5.7 < z < 6.9. This is the initial result from the Subaru High-z Exploration of Low-Luminosity Quasars (SHELLQs) project, which exploits the exquisite multiband imaging data produced by the Subaru Hyper Suprime-Cam (HSC) Strategic Program survey. The candidate selection is performed by combining several photometric approaches including a Bayesian probabilistic algorithm to reject stars and dwarfs. The spectroscopic identification was carried out with the Gran Telescopio Canarias and the Subaru Telescope for the first 80 deg2 of the survey footprint. The success rate of our photometric selection is quite high, approaching 100 % at the brighter magnitudes (zAB < 23.5 mag). Our selection also recovered all the known high-z quasars on the HSC images. Among the 15 discovered objects, six are likely quasars, while the other six with interstellar absorption lines and in some cases narrow emission lines are likely bright Lyman-break galaxies. The remaining three objects have weak continua and very strong and narrow Ly alpha lines, which may be excited by ultraviolet light from both young stars and quasars. These results indicate that we are starting to see the steep rise of the luminosity function of z > 6 galaxies, compared with that of quasars, at magnitudes fainter than M1450 ~ -22 mag or zAB ~24 mag. Follow-up studies of the discovered objects as well as further survey observations are ongoing., Comment: Published in ApJ (828:26, 2016)

Published
2016
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19. Hyper-luminous Dust Obscured Galaxies discovered by the Hyper Suprime-Cam on Subaru and WISE

Author

Toba, Yoshiki, Nagao, Tohru, Strauss, Michael A., Aoki, Kentaro, Goto, Tomotsugu, Imanishi, Masatoshi, Kawaguchi, Toshihiro, Terashima, Yuichi, Ueda, Yoshihiro, Bosch, James, Bundy, Kevin, Doi, Yoshiyuki, Inami, Hanae, Komiyama, Yutaka, Lupton, Robert H., Matsuhara, Hideo, Matsuoka, Yoshiki, Miyazaki, Satoshi, Morokuma, Tomoki, Nakata, Fumiaki, Oi, Nagisa, Onoue, Masafusa, Oyabu, Shinki, Price, Paul, Tait, Philip J., Takata, Tadafumi, Tanaka, Manobu M., Terai, Tsuyoshi, Turner, Edwin L., Uchida, Tomohisa, Usuda, Tomonori, Utsumi, Yousuke, Wang, Shiang-Yu, and Yamada, Yoshihiko

Subjects
Astrophysics - Astrophysics of Galaxies
Abstract

We present the photometric properties of a sample of infrared (IR) bright dust obscured galaxies (DOGs). Combining wide and deep optical images obtained with the Hyper Suprime-Cam (HSC) on the Subaru Telescope and all-sky mid-IR (MIR) images taken with Wide-Field Infrared Survey Explorer (WISE), we discovered 48 DOGs with $i - K_\mathrm{s} > 1.2$ and $i - [22] > 7.0$, where $i$, $K_\mathrm{s}$, and [22] represent AB magnitude in the $i$-band, $K_\mathrm{s}$-band, and 22 $\mu$m, respectively, in the GAMA 14hr field ($\sim$ 9 deg$^2$). Among these objects, 31 ($\sim$ 65 %) show power-law spectral energy distributions (SEDs) in the near-IR (NIR) and MIR regime, while the remainder show a NIR bump in their SEDs. Assuming that the redshift distribution for our DOGs sample is Gaussian, with mean and sigma $z$ = 1.99 $\pm$ 0.45, we calculated their total IR luminosity using an empirical relation between 22 $\mu$m luminosity and total IR luminosity. The average value of the total IR luminosity is (3.5 $\pm$ 1.1) $\times$ $10^{13}$ L$_{\odot}$, which classifies them as hyper-luminous infrared galaxies (HyLIRGs). We also derived the total IR luminosity function (LF) and IR luminosity density (LD) for a flux-limited subsample of 18 DOGs with 22 $\mu$m flux greater than 3.0 mJy and with $i$-band magnitude brighter than 24 AB magnitude. The derived space density for this subsample is log $\phi$ = -6.59 $\pm$ 0.11 [Mpc$^{-3}$]. The IR LF for DOGs including data obtained from the literature is well fitted by a double-power law. The derived lower limit for the IR LD for our sample is $\rho_{\mathrm{IR}}$ $\sim$ 3.8 $\times$ 10$^7$ [L$_{\odot}$ Mpc$^{-3}$] and its contributions to the total IR LD, IR LD of all ultra-luminous infrared galaxies (ULIRGs), and that of all DOGs are $>$ 3 %, $>$ 9 %, and $>$ 15 %, respectively., Comment: 15 pages, 15 figures, and 3 tables, accepted for publication in PASJ (Subaru special issue)

Published
2015
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20. Hyper Suprime-Cam Year 3 results: Cosmology from galaxy clustering and weak lensing with HSC and SDSS using the emulator based halo model

Author

Miyatake, Hironao, primary, Sugiyama, Sunao, additional, Takada, Masahiro, additional, Nishimichi, Takahiro, additional, Li, Xiangchong, additional, Shirasaki, Masato, additional, More, Surhud, additional, Kobayashi, Yosuke, additional, Nishizawa, Atsushi J., additional, Rau, Markus M., additional, Zhang, Tianqing, additional, Takahashi, Ryuichi, additional, Dalal, Roohi, additional, Mandelbaum, Rachel, additional, Strauss, Michael A., additional, Hamana, Takashi, additional, Oguri, Masamune, additional, Osato, Ken, additional, Luo, Wentao, additional, Kannawadi, Arun, additional, Hsieh, Bau-Ching, additional, Armstrong, Robert, additional, Bosch, James, additional, Komiyama, Yutaka, additional, Lupton, Robert H., additional, Lust, Nate B., additional, MacArthur, Lauren A., additional, Miyazaki, Satoshi, additional, Murayama, Hitoshi, additional, Okura, Yuki, additional, Price, Paul A., additional, Sunayama, Tomomi, additional, Tait, Philip J., additional, Tanaka, Masayuki, additional, and Wang, Shiang-Yu, additional

Published
2023
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21. Hyper Suprime-Cam Year 3 results: Cosmology from galaxy clustering and weak lensing with HSC and SDSS using the minimal bias model

Author

Sugiyama, Sunao, primary, Miyatake, Hironao, additional, More, Surhud, additional, Li, Xiangchong, additional, Shirasaki, Masato, additional, Takada, Masahiro, additional, Kobayashi, Yosuke, additional, Takahashi, Ryuichi, additional, Nishimichi, Takahiro, additional, Nishizawa, Atsushi J., additional, Rau, Markus M., additional, Zhang, Tianqing, additional, Dalal, Roohi, additional, Mandelbaum, Rachel, additional, Strauss, Michael A., additional, Hamana, Takashi, additional, Oguri, Masamune, additional, Osato, Ken, additional, Kannawadi, Arun, additional, Hsieh, Bau-Ching, additional, Luo, Wentao, additional, Armstrong, Robert, additional, Bosch, James, additional, Komiyama, Yutaka, additional, Lupton, Robert H., additional, Lust, Nate B., additional, Miyazaki, Satoshi, additional, Murayama, Hitoshi, additional, Okura, Yuki, additional, Price, Paul A., additional, Tait, Philip J., additional, Tanaka, Masayuki, additional, and Wang, Shiang-Yu, additional

Published
2023
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22. Hyper Suprime-Cam Year 3 results: Cosmology from cosmic shear power spectra

Author

Dalal, Roohi, primary, Li, Xiangchong, additional, Nicola, Andrina, additional, Zuntz, Joe, additional, Strauss, Michael A., additional, Sugiyama, Sunao, additional, Zhang, Tianqing, additional, Rau, Markus M., additional, Mandelbaum, Rachel, additional, Takada, Masahiro, additional, More, Surhud, additional, Miyatake, Hironao, additional, Kannawadi, Arun, additional, Shirasaki, Masato, additional, Taniguchi, Takanori, additional, Takahashi, Ryuichi, additional, Osato, Ken, additional, Hamana, Takashi, additional, Oguri, Masamune, additional, Nishizawa, Atsushi J., additional, Malagón, Andrés A. Plazas, additional, Sunayama, Tomomi, additional, Alonso, David, additional, Slosar, Anže, additional, Luo, Wentao, additional, Armstrong, Robert, additional, Bosch, James, additional, Hsieh, Bau-Ching, additional, Komiyama, Yutaka, additional, Lupton, Robert H., additional, Lust, Nate B., additional, MacArthur, Lauren A., additional, Miyazaki, Satoshi, additional, Murayama, Hitoshi, additional, Nishimichi, Takahiro, additional, Okura, Yuki, additional, Price, Paul A., additional, Tait, Philip J., additional, Tanaka, Masayuki, additional, and Wang, Shiang-Yu, additional

Published
2023
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23. Hyper Suprime-Cam Year 3 results: Measurements of clustering of SDSS-BOSS galaxies, galaxy-galaxy lensing, and cosmic shear

Author

More, Surhud, primary, Sugiyama, Sunao, additional, Miyatake, Hironao, additional, Rau, Markus Michael, additional, Shirasaki, Masato, additional, Li, Xiangchong, additional, Nishizawa, Atsushi J., additional, Osato, Ken, additional, Zhang, Tianqing, additional, Takada, Masahiro, additional, Hamana, Takashi, additional, Takahashi, Ryuichi, additional, Dalal, Roohi, additional, Mandelbaum, Rachel, additional, Strauss, Michael A., additional, Kobayashi, Yosuke, additional, Nishimichi, Takahiro, additional, Oguri, Masamune, additional, Luo, Wentao, additional, Kannawadi, Arun, additional, Hsieh, Bau-Ching, additional, Armstrong, Robert, additional, Bosch, James, additional, Komiyama, Yutaka, additional, Lupton, Robert H., additional, Lust, Nate B., additional, MacArthur, Lauren A., additional, Miyazaki, Satoshi, additional, Murayama, Hitoshi, additional, Okura, Yuki, additional, Price, Paul A., additional, Tait, Philip J., additional, Tanaka, Masayuki, additional, and Wang, Shiang-Yu, additional

Published
2023
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24. Quasar Luminosity Function at z = 7

Author

Matsuoka, Yoshiki, primary, Onoue, Masafusa, additional, Iwasawa, Kazushi, additional, Strauss, Michael A., additional, Kashikawa, Nobunari, additional, Izumi, Takuma, additional, Nagao, Tohru, additional, Imanishi, Masatoshi, additional, Akiyama, Masayuki, additional, Silverman, John D., additional, Asami, Naoko, additional, Bosch, James, additional, Furusawa, Hisanori, additional, Goto, Tomotsugu, additional, Gunn, James E., additional, Harikane, Yuichi, additional, Ikeda, Hiroyuki, additional, Inayoshi, Kohei, additional, Ishimoto, Rikako, additional, Kawaguchi, Toshihiro, additional, Kikuta, Satoshi, additional, Kohno, Kotaro, additional, Komiyama, Yutaka, additional, Lee, Chien-Hsiu, additional, Lupton, Robert H., additional, Minezaki, Takeo, additional, Miyazaki, Satoshi, additional, Murayama, Hitoshi, additional, Nishizawa, Atsushi J., additional, Oguri, Masamune, additional, Ono, Yoshiaki, additional, Oogi, Taira, additional, Ouchi, Masami, additional, Price, Paul A., additional, Sameshima, Hiroaki, additional, Sugiyama, Naoshi, additional, Tait, Philip J., additional, Takada, Masahiro, additional, Takahashi, Ayumi, additional, Takata, Tadafumi, additional, Tanaka, Masayuki, additional, Toba, Yoshiki, additional, Wang, Shiang-Yu, additional, and Yamashita, Takuji, additional

Published
2023
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25. Prime Focus Spectrograph (PFS) for the Subaru Telescope: its start of the last development phase

Author

Tamura, Naoyuki, primary, Moritani, Yuki, additional, Yabe, Kiyoto, additional, Ishizuka, Yuki, additional, Kamata, Yukiko, additional, Allaoui, Ali, additional, Arai, Akira, additional, Arnouts, Stéphane, additional, Barkhouser, Robert H., additional, Barette, Rudy, additional, Blanchard, Patrick, additional, Bergeron, Eddie, additional, Caplar, Neven, additional, Chabaud, Pierre-Yves, additional, Chang, Yin-Chang, additional, Chen, Hsin-Yo, additional, Chou, Chueh-Yi, additional, Chu, You-Hua, additional, Cohen, Judith G., additional, da Costa, Ricardo L., additional, Crauchet, Thibaut, additional, de Almeida, Rodrigo P., additional, de Oliveira, Antonio Cesar ., additional, de Oliveira, Ligia S., additional, Dohlen, Kjetil, additional, dos Santos, Leandro H., additional, Ellis, Richard S., additional, Fabricius, Maximilian, additional, Ferreira, Décio, additional, Furusawa, Hisanori, additional, Givans, Jahmour J., additional, Garciá-Carpio, Javier, additional, Golebiowski, Mirek, additional, Gray, Aidan C., additional, Gunn, James E., additional, Hamano, Satoshi, additional, Hammond, Randolph P., additional, Harding, Albert, additional, Hayashi, Kota, additional, He, Wanqiu, additional, Heckman, Timothy M., additional, Hope, Stephen C., additional, Hsu, Shu-Fu, additional, Hu, Yen-Shan, additional, Huang, Pin Jie, additional, Ishigaki, Miho N., additional, Jeschke, Eric, additional, Jing, Yipeng, additional, Kado-Fong, Erin, additional, Karr, Jennifer L., additional, Kawanomoto, Satoshi, additional, Kimura, Masahiko, additional, Koike, Michitaro, additional, Komatsu, Eiichiro, additional, Koshida, Shintaro, additional, Le Brun, Vincent, additional, Le Fur, Arnaud, additional, Le Mignant, David, additional, Lhoussaine, Romain, additional, Lin, Yen-Ting, additional, Ling, Hung-Hsu, additional, Loomis, Craig P., additional, Lupton, Robert ., additional, Madec, Fabrice, additional, Marchesini, Danilo, additional, Marguerite, Edouard, additional, Marrara, Lucas S., additional, Medvedev, Dmitry, additional, Mineo, Sogo, additional, Miyazaki, Satoshi, additional, Morishima, Takahiro, additional, Murata, Kazumi, additional, Murayama, Hitoshi, additional, Murray, Graham J., additional, Okita, Hirofumi, additional, Onodera, Masato, additional, Peebles, Joshua P., additional, Price, Paul, additional, Pyo, Tae-Soo, additional, Ramos, Lucio, additional, Reiley, Daniel J., additional, Reinecke, Martin, additional, Roberts, Mitsuko K., additional, Rosa, Josimar A., additional, Rousselle, Julien ., additional, Sarkis, Mira, additional, Seiffert, Michael D., additional, Schubert, Kiaina, additional, Siddiqui, Hassan, additional, Smee, Stephen A., additional, Sodré, Laerte, additional, Strauss, Michael A., additional, Surace, Christian, additional, Taghizadeh Popp, Manuchehr, additional, Tait, Philip J., additional, Takada, Masahiro, additional, Takagi, Yuhei, additional, Tanaka, Masayuki, additional, Tanaka, Yoko, additional, Thakar, Aniruddha R., additional, Vibert, Didier, additional, Wang, Shiang-Yu, additional, Wen, Chih-Yi, additional, Werner, Suzanne, additional, Wung, Matthew, additional, Lemson, Gerald, additional, Mitschang, Arik, additional, Yasuda, Naoki, additional, Yoshida, Hiroshige, additional, Yan, Chi-Hung, additional, Yoshida, Michitoshi, additional, and Yamashita, Takuji, additional

Published
2022
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26. Subaru High- z Exploration of Low-luminosity Quasars (SHELLQs). XVI. 69 New Quasars at 5.8 < z < 7.0

Author

Japan Society for the Promotion of Science, Mitsubishi International Corporation, Ministerio de Ciencia e Innovación (España), Matsuoka, Yoshiki, Iwasawa, Kazushi, Onoue, Masafusa, Izumi, Takuma, Kashikawa, Nobunari, Strauss, Michael A., Imanishi, Masatoshi, Nagao, Tohru, Akiyama, Masayuki, Silverman, John D., Asami, Naoko, Bosch, Jaime, Furusawa, Hisanori, Goto, Tomotsugu, Gunn, James E., Harikane, Yuichi, Ikeda, Hiroyuki, Ishimoto, Rikako, Kawaguchi, Toshihiro, Kato, Nanako, Kikuta, Satoshi, Kohno, Kotaro, Komiyama, Yutaka, Lee, Chien-Hsiu, Lupton, Robert H., Minezaki, Takeo, Miyazaki, Satoshi, Murayama, Hitoshi, Nishizawa, Atsushi J., Oguri, Masamune, Ono, Yoshiaki, Ouchi, Masami, Price, Paul A., Sameshima, Hiroaki, Sugiyama, N., Tait, Philip J., Takada, Masahiro, Takahashi, Ayumi, Tanaka, Masayuki, Toba, Yoshiki, Utsumi, Yousuke, Wang, Shiang-Yu, Yamashita, Takuji, Japan Society for the Promotion of Science, Mitsubishi International Corporation, Ministerio de Ciencia e Innovación (España), Matsuoka, Yoshiki, Iwasawa, Kazushi, Onoue, Masafusa, Izumi, Takuma, Kashikawa, Nobunari, Strauss, Michael A., Imanishi, Masatoshi, Nagao, Tohru, Akiyama, Masayuki, Silverman, John D., Asami, Naoko, Bosch, Jaime, Furusawa, Hisanori, Goto, Tomotsugu, Gunn, James E., Harikane, Yuichi, Ikeda, Hiroyuki, Ishimoto, Rikako, Kawaguchi, Toshihiro, Kato, Nanako, Kikuta, Satoshi, Kohno, Kotaro, Komiyama, Yutaka, Lee, Chien-Hsiu, Lupton, Robert H., Minezaki, Takeo, Miyazaki, Satoshi, Murayama, Hitoshi, Nishizawa, Atsushi J., Oguri, Masamune, Ono, Yoshiaki, Ouchi, Masami, Price, Paul A., Sameshima, Hiroaki, Sugiyama, N., Tait, Philip J., Takada, Masahiro, Takahashi, Ayumi, Tanaka, Masayuki, Toba, Yoshiki, Utsumi, Yousuke, Wang, Shiang-Yu, and Yamashita, Takuji

Abstract

We present the spectroscopic discovery of 69 quasars at 5.8 < z < 7.0, drawn from the Hyper Suprime-Cam (HSC) Subaru Strategic Program (SSP) imaging survey data. This is the 16th publication from the Subaru High-z Exploration of Low-Luminosity Quasars (SHELLQs) project, and it completes identification of all but the faintest candidates (i.e., i-band dropouts with z AB < 24 and y-band detections, and z-band dropouts with y AB < 24) with Bayesian quasar probability PQB>0.1 in the HSC-SSP third public data release (PDR3). The sample reported here also includes three quasars with PQB<0.1 at z ∼6.6, which we selected in an effort to completely cover the reddest point sources with simple color cuts. The number of high-z quasars discovered in SHELLQs has now grown to 162, including 23 type II quasar candidates. This paper also presents identification of seven galaxies at 5.6 < z < 6.7, an [O iii] emitter at z = 0.954, and 31 Galactic cool stars and brown dwarfs. High-z quasars and galaxies compose 75% and 16%, respectively, of all the spectroscopic SHELLQs objects that pass our latest selection algorithm with the PDR3 photometry. That is, a total of 91% of the objects lie at z > 5.6. This demonstrates that the algorithm has very high efficiency, even though we are probing an unprecedentedly low luminosity population down to M 1450 ∼-21 mag.

Published
2022

27. Subaru High-z Exploration of Low-luminosity Quasars (SHELLQs). XVI. 69 New Quasars at 5.8 < z < 7.0

Author

Matsuoka, Yoshiki, primary, Iwasawa, Kazushi, additional, Onoue, Masafusa, additional, Izumi, Takuma, additional, Kashikawa, Nobunari, additional, Strauss, Michael A., additional, Imanishi, Masatoshi, additional, Nagao, Tohru, additional, Akiyama, Masayuki, additional, Silverman, John D., additional, Asami, Naoko, additional, Bosch, James, additional, Furusawa, Hisanori, additional, Goto, Tomotsugu, additional, Gunn, James E., additional, Harikane, Yuichi, additional, Ikeda, Hiroyuki, additional, Ishimoto, Rikako, additional, Kawaguchi, Toshihiro, additional, Kato, Nanako, additional, Kikuta, Satoshi, additional, Kohno, Kotaro, additional, Komiyama, Yutaka, additional, Lee, Chien-Hsiu, additional, Lupton, Robert H., additional, Minezaki, Takeo, additional, Miyazaki, Satoshi, additional, Murayama, Hitoshi, additional, Nishizawa, Atsushi J., additional, Oguri, Masamune, additional, Ono, Yoshiaki, additional, Ouchi, Masami, additional, Price, Paul A., additional, Sameshima, Hiroaki, additional, Sugiyama, Naoshi, additional, Tait, Philip J., additional, Takada, Masahiro, additional, Takahashi, Ayumi, additional, Takata, Tadafumi, additional, Tanaka, Masayuki, additional, Toba, Yoshiki, additional, Utsumi, Yousuke, additional, Wang, Shiang-Yu, additional, and Yamashita, Takuji, additional

Published
2022
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28. Prime Focus Spectrograph (PFS) for the Subaru telescope: a next-generation facility instrument of the Subaru telescope has started coming

Author

Tamura, Naoyuki, primary, Takato, Naruhisa, additional, Moritani, Yuki, additional, Yabe, Kiyoto, additional, Ishizuka, Yuki, additional, Kamata, Yukiko, additional, Allaoui, Ali, additional, Arnouts, Stéphane, additional, Barkhouser, Robert H., additional, Balard, Philippe, additional, Barette, Rudy, additional, Belhadi, Mohamed, additional, Burnham, Jill A., additional, Caplar, Neven, additional, Carr, Michael A., additional, Chabaud, Pierre-Yves, additional, Chang, Yin-Chang, additional, Chen, Hsin-Yo, additional, Chou, Richard C. Y., additional, Chu, You-Hua, additional, Cohen, Judith G., additional, Costa, Ricardo L., additional, Crauchet, Thibaut, additional, de Almeida, Rodrigo P., additional, de Oliveira, Antonio Cesar, additional, de Oliveira, Ligia S., additional, Dohlen, Kjetil, additional, dos Santos, Leandro H., additional, Ellis, Richard S., additional, Fabricius, Maximilian H., additional, Ferreira, Décio, additional, Furusawa, Hisanori, additional, Garcia-Carpio, Javier, additional, Golebiowski, Mirek, additional, Gray, Aidan C., additional, Gunn, James E., additional, Harding, Albert, additional, Hammond, Randolph P., additional, Hart, Murdock, additional, Heckman, Timothy M., additional, Hope, Stephen C., additional, Hsu, Shu-Fu, additional, Hu, Yen-Shan, additional, Huang, Pin-Jie, additional, Jaquet, Marc, additional, Jeschke, Eric, additional, Jing, Yipeng, additional, Kado-Fong, Erin, additional, Karr, Jennifer E., additional, Kawanomoto, Satoshi, additional, Kimura, Masahiko, additional, Koike, Michitaro, additional, Komatsu, Eiichiro, additional, Koshida, Shintaro, additional, Lebrun, Vincent, additional, Le Fèvre, Olivier C., additional, Le Fur, Arnaud, additional, Le Mignant, David, additional, Ling, Hung-Hsu, additional, Loomis, Craig P., additional, Lupton, Robert H., additional, Madec, Fabrice, additional, Marchesini, Danilo, additional, Marguerite, Edouard, additional, Marrara, Lucas Souza, additional, Medvedev, Dmitry, additional, Mineo, Sogo, additional, Murayama, Hitoshi, additional, Murray, Graham J., additional, Ohyama, Youichi, additional, Okita, Hirofumi, additional, Okura, Yuki, additional, Onodera, Masato, additional, Orndorff, Joseph, additional, Pascal, Sandrine, additional, Peebles, Joshua, additional, Ramos, Lucio, additional, Reiley, Daniel J., additional, Reinecke, Martin, additional, Roberts, Mitsuko, additional, Rosa, Josimar A., additional, Rousselle, Julien, additional, Sarkis, Mira, additional, Schmitt, Alain, additional, Seiffert, Michael D., additional, Schubert, Kiaina, additional, Siddiqui, Hassan, additional, Smee, Stephen A., additional, Sodré, Laerte, additional, Strauss, Michael A., additional, Surace, Christian, additional, Taghizadeh-Popp, Manuchehr, additional, Tait, Philip J., additional, Takada, Masahiro, additional, Takita, Satoshi, additional, Tamura, Tomonori, additional, Tanaka, Masayuki, additional, Tanaka, Yoko, additional, Thakar, Aniruddha R., additional, Vibert, Didier, additional, Wang, Shiang-Yu, additional, Wen, Chih-Yi, additional, Werner, Suzanne, additional, Wung, Matthew, additional, Yamada, Yoshihiko, additional, Yamashita, Takuji, additional, Yan, Chi-Hung, additional, Yasuda, Naoki, additional, Yoshida, Hiroshige, additional, and Yoshida, Michitoshi, additional

Published
2021
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29. Prime Focus Spectrograph (PFS): a next-generation facility instrument of the Subaru telescope has started coming

Author

Evans, Christopher J., Bryant, Julia J., Motohara, Kentaro, Tamura, Naoyuki, Takato, Naruhisa, Moritani, Yuki, Yabe, Kiyoto, Ishizuka, Yuki, Kamata, Yukiko, Furusawa, Hisanori, Greene, Jenny E., Gunn, James E., Jeschke, Eric, Kawanomoto, Satoshi, Koike, Michitaro, Koshida, Shintaro, Loomis, Craig P., Mineo, Sogo, Okita, Hirofumi, Okura, Yuki, Onodera, Masato, Rousselle, Julien, Schubert, Kiaina, Siddiqui, Hassan, Spergel, David N., Takita, Satoshi, Tait, Philip J., Tamura, Tomonori, Tanaka, Masayuki, Carr, Michael A., Lupton, Robert H., Strauss, Michael A., Kado-Fong, Erin, Caplar, Neven, Ellis, Richard S., Tanaka, Yoko, Murray, Graham J., Reiley, Daniel J., Roberts, Mitsuko, Belland, Brent R., Burnham, Jill A., Seiffert, Michael D., Sodré, Laerte, Ramos, Lucio, Takada, Masahiro, Murayama, Hitoshi, Yasuda, Naoki, Gray, Aidan C., Harding, Albert, Peebles, Joshua, Golebiowski, Mirek, Allaoui, Ali, Arnouts, Stéphane, Balard, Philippe, Belhadi, Mohamed, Barette, Rudy, Barkhouser, Robert H., Garcia-Carpio, Javier, Chabaud, Pierre-Yves, Chen, Hsin-Yo, Chou, Richard C. Y., Chu, You-Hua, Costa, Ricardo L., Yamada, Yoshihiko, Yamashita, Takuji, Yoshida, Hiroshige, Crauchet, Thibaut, de Almeida, Rodrigo P., de Oliveira, Antonio Cesar, de Oliveira, Ligia S., dos Santos, Leandro H., Dohlen, Kjetil, Fabricius, Maximilian H., Ferreira, Decio, Hammond, Randolph P., Hart, Murdock, Heckman, Timothy M., Ho, Paul T. P., Hope, Stephen C., Hsu, Shu-Fu, Hu, Yen-Shan, Wung, Matthew, Huang, Pin-Jie, Jaquet, Marc, Karr, Jennifer E., Kimura, Masahiko, Le Fur, Arnaud, Komatsu, Eiichiro, Lebrun, Vincent, Le Fèvre, Olivier C., Le Mignant, David, Ling, Hung-Hsu, Madec, Fabrice, Marguerite, Edouard, Marrara, Lucas Souza, Medvedev, Dmitry, Ohyama, Youichi, Orndorff, Joseph, Pascal, Sandrine, Reinecke, Martin, Rosa, Josimar A., Sarkis, Mira, Schmitt, Alain, Smee, Stephen A., Surace, Christian, Taghizadeh-Popp, Manuchehr, Thakar, Aniruddha R., Vibert, Didier, Yan, Chi-Hung, Wang, Shiang-Yu, Werner, Suzanne, Wen, Chih-Yi, Evans, Christopher J., Bryant, Julia J., Motohara, Kentaro, Tamura, Naoyuki, Takato, Naruhisa, Moritani, Yuki, Yabe, Kiyoto, Ishizuka, Yuki, Kamata, Yukiko, Furusawa, Hisanori, Greene, Jenny E., Gunn, James E., Jeschke, Eric, Kawanomoto, Satoshi, Koike, Michitaro, Koshida, Shintaro, Loomis, Craig P., Mineo, Sogo, Okita, Hirofumi, Okura, Yuki, Onodera, Masato, Rousselle, Julien, Schubert, Kiaina, Siddiqui, Hassan, Spergel, David N., Takita, Satoshi, Tait, Philip J., Tamura, Tomonori, Tanaka, Masayuki, Carr, Michael A., Lupton, Robert H., Strauss, Michael A., Kado-Fong, Erin, Caplar, Neven, Ellis, Richard S., Tanaka, Yoko, Murray, Graham J., Reiley, Daniel J., Roberts, Mitsuko, Belland, Brent R., Burnham, Jill A., Seiffert, Michael D., Sodré, Laerte, Ramos, Lucio, Takada, Masahiro, Murayama, Hitoshi, Yasuda, Naoki, Gray, Aidan C., Harding, Albert, Peebles, Joshua, Golebiowski, Mirek, Allaoui, Ali, Arnouts, Stéphane, Balard, Philippe, Belhadi, Mohamed, Barette, Rudy, Barkhouser, Robert H., Garcia-Carpio, Javier, Chabaud, Pierre-Yves, Chen, Hsin-Yo, Chou, Richard C. Y., Chu, You-Hua, Costa, Ricardo L., Yamada, Yoshihiko, Yamashita, Takuji, Yoshida, Hiroshige, Crauchet, Thibaut, de Almeida, Rodrigo P., de Oliveira, Antonio Cesar, de Oliveira, Ligia S., dos Santos, Leandro H., Dohlen, Kjetil, Fabricius, Maximilian H., Ferreira, Decio, Hammond, Randolph P., Hart, Murdock, Heckman, Timothy M., Ho, Paul T. P., Hope, Stephen C., Hsu, Shu-Fu, Hu, Yen-Shan, Wung, Matthew, Huang, Pin-Jie, Jaquet, Marc, Karr, Jennifer E., Kimura, Masahiko, Le Fur, Arnaud, Komatsu, Eiichiro, Lebrun, Vincent, Le Fèvre, Olivier C., Le Mignant, David, Ling, Hung-Hsu, Madec, Fabrice, Marguerite, Edouard, Marrara, Lucas Souza, Medvedev, Dmitry, Ohyama, Youichi, Orndorff, Joseph, Pascal, Sandrine, Reinecke, Martin, Rosa, Josimar A., Sarkis, Mira, Schmitt, Alain, Smee, Stephen A., Surace, Christian, Taghizadeh-Popp, Manuchehr, Thakar, Aniruddha R., Vibert, Didier, Yan, Chi-Hung, Wang, Shiang-Yu, Werner, Suzanne, and Wen, Chih-Yi

Abstract

PFS (Prime Focus Spectrograph) is a next generation facility instruments on the Subaru telescope. 2394 reconfigurable fibers will be distributed in the 1.3 degree field of view, and the spectrograph has 3 arms (blue, red, and near-infrared) to simultaneously observe spectra from 380nm to 1260nm in one exposure. In 2018, Metrology Camera System was delivered to the observatory and successfully tested on the telescope. Now in Nov 2019 the first spectrograph module with visible cameras is being shipped to Hawaii. The other subsystems are actively being developed to start on-sky engineering observation in 2020, and science operation in 2022. In this contribution, an overview of the current status and future perspectives will be presented.

Published
2020

30. Subaru High-z Exploration of Low-luminosity Quasars (SHELLQs). X. Discovery of 35 Quasars and Luminous Galaxies at 5.7 ≤ z ≤ 7.0

Author

Matsuoka, Yoshiki, primary, Iwasawa, Kazushi, additional, Onoue, Masafusa, additional, Kashikawa, Nobunari, additional, Strauss, Michael A., additional, Lee, Chien-Hsiu, additional, Imanishi, Masatoshi, additional, Nagao, Tohru, additional, Akiyama, Masayuki, additional, Asami, Naoko, additional, Bosch, James, additional, Furusawa, Hisanori, additional, Goto, Tomotsugu, additional, Gunn, James E., additional, Harikane, Yuichi, additional, Ikeda, Hiroyuki, additional, Izumi, Takuma, additional, Kawaguchi, Toshihiro, additional, Kato, Nanako, additional, Kikuta, Satoshi, additional, Kohno, Kotaro, additional, Komiyama, Yutaka, additional, Koyama, Shuhei, additional, Lupton, Robert H., additional, Minezaki, Takeo, additional, Miyazaki, Satoshi, additional, Murayama, Hitoshi, additional, Niida, Mana, additional, Nishizawa, Atsushi J., additional, Noboriguchi, Akatoki, additional, Oguri, Masamune, additional, Ono, Yoshiaki, additional, Ouchi, Masami, additional, Price, Paul A., additional, Sameshima, Hiroaki, additional, Schulze, Andreas, additional, Silverman, John D., additional, Sugiyama, Naoshi, additional, Tait, Philip J., additional, Takada, Masahiro, additional, Takata, Tadafumi, additional, Tanaka, Masayuki, additional, Tang, Ji-Jia, additional, Toba, Yoshiki, additional, Utsumi, Yousuke, additional, Wang, Shiang-Yu, additional, and Yamashita, Takuji, additional

Published
2019
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31. Discovery of the First Low-luminosity Quasar at z > 7

Author

Matsuoka, Yoshiki, primary, Onoue, Masafusa, additional, Kashikawa, Nobunari, additional, Strauss, Michael A, additional, Iwasawa, Kazushi, additional, Lee, Chien-Hsiu, additional, Imanishi, Masatoshi, additional, Nagao, Tohru, additional, Akiyama, Masayuki, additional, Asami, Naoko, additional, Bosch, James, additional, Furusawa, Hisanori, additional, Goto, Tomotsugu, additional, Gunn, James E, additional, Harikane, Yuichi, additional, Ikeda, Hiroyuki, additional, Izumi, Takuma, additional, Kawaguchi, Toshihiro, additional, Kato, Nanako, additional, Kikuta, Satoshi, additional, Kohno, Kotaro, additional, Komiyama, Yutaka, additional, Koyama, Shuhei, additional, Lupton, Robert H, additional, Minezaki, Takeo, additional, Miyazaki, Satoshi, additional, Murayama, Hitoshi, additional, Niida, Mana, additional, Nishizawa, Atsushi J, additional, Noboriguchi, Akatoki, additional, Oguri, Masamune, additional, Ono, Yoshiaki, additional, Ouchi, Masami, additional, Price, Paul A, additional, Sameshima, Hiroaki, additional, Schulze, Andreas, additional, Shirakata, Hikari, additional, Silverman, John D, additional, Sugiyama, Naoshi, additional, Tait, Philip J, additional, Takada, Masahiro, additional, Takata, Tadafumi, additional, Tanaka, Masayuki, additional, Tang, Ji-Jia, additional, Toba, Yoshiki, additional, Utsumi, Yousuke, additional, Wang, Shiang-Yu, additional, and Yamashita, Takuji, additional

Published
2019
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32. Subaru High-z Exploration of Low-luminosity Quasars (SHELLQs). V. Quasar Luminosity Function and Contribution to Cosmic Reionization at z = 6

Author

Matsuoka, Yoshiki, primary, Strauss, Michael A., additional, Kashikawa, Nobunari, additional, Onoue, Masafusa, additional, Iwasawa, Kazushi, additional, Tang, Ji-Jia, additional, Lee, Chien-Hsiu, additional, Imanishi, Masatoshi, additional, Nagao, Tohru, additional, Akiyama, Masayuki, additional, Asami, Naoko, additional, Bosch, James, additional, Furusawa, Hisanori, additional, Goto, Tomotsugu, additional, Gunn, James E., additional, Harikane, Yuichi, additional, Ikeda, Hiroyuki, additional, Izumi, Takuma, additional, Kawaguchi, Toshihiro, additional, Kato, Nanako, additional, Kikuta, Satoshi, additional, Kohno, Kotaro, additional, Komiyama, Yutaka, additional, Lupton, Robert H., additional, Minezaki, Takeo, additional, Miyazaki, Satoshi, additional, Murayama, Hitoshi, additional, Niida, Mana, additional, Nishizawa, Atsushi J., additional, Noboriguchi, Akatoki, additional, Oguri, Masamune, additional, Ono, Yoshiaki, additional, Ouchi, Masami, additional, Price, Paul A., additional, Sameshima, Hiroaki, additional, Schulze, Andreas, additional, Shirakata, Hikari, additional, Silverman, John D., additional, Sugiyama, Naoshi, additional, Tait, Philip J., additional, Takada, Masahiro, additional, Takata, Tadafumi, additional, Tanaka, Masayuki, additional, Toba, Yoshiki, additional, Utsumi, Yousuke, additional, Wang, Shiang-Yu, additional, and Yamashita, Takuji, additional

Published
2018
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33. Prime Focus Spectrograph (PFS) for the Subaru telescope: ongoing integration and future plans

Author

Tamura, Naoyuki, primary, Chu, You-Hua, primary, Gunn, James E., primary, Strauss, Michael A., primary, Heckman, Timothy M., primary, Smee, Stephen A., primary, Le Fèvre, Olivier, primary, Le Mignant, David, primary, Aghazarian, Hrand, primary, Chabaud, Pierre-Yves, primary, Chang, Yin-Chang, primary, Chou, Chueh-Yi, primary, de Almeida, Rodorigo P., primary, de Oliveira, Antonio C., primary, Dekany, Richard G., primary, Dohlen, Kjetil, primary, dos Santos, Jesulino B., primary, dos Santos, Leandro H., primary, Karr, Jeniffer L., primary, Kimura, Masahiko, primary, King, Matthew E., primary, Koike, Michitaro, primary, Le Fur, Arnaud, primary, Ling, Hung-Hsu, primary, Le Brun, Vincent, primary, Loomis, Craig P., primary, Lupton, Robert H., primary, Madec, Fabrice, primary, Mao, Peter H., primary, Murayama, Hitoshi, primary, Takada, Masahiro, primary, Moritani, Yuki, primary, Yabe, Kiyoto, primary, Ishizuka, Yuki, primary, Takato, Naruhisa, primary, Ueda, Akitoshi, primary, Shimono, Atsushi, primary, Kamata, Yukiko, primary, Wang, Shiang-Yu, primary, Sodré Junior, Laerte, primary, de Oliveira, Lígia S., primary, Jing, Yipeng, primary, Cohen, Judith G., primary, Reiley, Daniel J., primary, Seiffert, Micheal D., primary, Schwochert, Mark A., primary, Komatsu, Eiichiro, primary, Ellis, Richard S., primary, Arnouts, Stephane, primary, Barkhouser, Robert H., primary, Balard, Philippe, primary, Barette, Rudy, primary, Belhadi, Mohamed, primary, Burnham, Jill A., primary, Caplar, Neven, primary, Garcia-Carpio, Javier, primary, Carr, Michael A., primary, Chen, Hsin-Yo, primary, Fabricius, Maximilian, primary, Ferreira, Decio, primary, Furusawa, Hisanori, primary, Golebiowski, Mirek, primary, Gross, Johannes, primary, Hammond, Randolph, primary, Harding, Albert, primary, Hart, Murdock, primary, Ho, Paul T., primary, Hope, Stephen C., primary, Hover, David J., primary, Hsu, Shu-Fu, primary, Hu, Yen-Shan, primary, Huang, Ping-Jie, primary, Jamal, Sara, primary, Jaquet, Marc, primary, Jeschke, Eric, primary, Kado-Fong, Erin, primary, Marchesini, Danilo, primary, Marrara, Lucas S., primary, Medvedev, Dmitry, primary, Mineo, Sogo, primary, Minowa, Yosuke, primary, Ohyama, Youichi, primary, Onodera, Masato, primary, Orndorff, Joseph, primary, Pascal, Sandrine, primary, Peebles, Josh, primary, Pernot, Guillaume, primary, Pourcelot, Raphael, primary, Reinecke, Martin, primary, Roberts, Mitsuko, primary, Rosa, Josimar A., primary, Rousselle, Julien, primary, Schmitt, Alain, primary, Siddiqui, Hassan, primary, Steinkraus, Aaron J., primary, Surace, Christian, primary, Tait, Philip J., primary, Tamura, Tomonori, primary, Tanaka, Masayuki, primary, Tanaka, Yoko, primary, Thakar, Aniruddha R., primary, Verducci, Orlando, primary, Vibert, Didier, primary, Wang, Zuo, primary, Wen, Chih-Yi, primary, Werner, Suzanne, primary, Yamada, Yoshihiko, primary, Yan, Chi-Hung, primary, Yasuda, Naoki, primary, Yoshida, Hiroshige, primary, Yoshida, Michitoshi, primary, and Murray, Graham J., primary

Published
2018
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34. Subaru High- z Exploration of Low-luminosity Quasars (SHELLQs). IV. Discovery of 41 Quasars and Luminous Galaxies at 5.7 ≤ z ≤ 6.9

Author

Matsuoka, Yoshiki, primary, Iwasawa, Kazushi, additional, Onoue, Masafusa, additional, Kashikawa, Nobunari, additional, Strauss, Michael A., additional, Lee, Chien-Hsiu, additional, Imanishi, Masatoshi, additional, Nagao, Tohru, additional, Akiyama, Masayuki, additional, Asami, Naoko, additional, Bosch, James, additional, Furusawa, Hisanori, additional, Goto, Tomotsugu, additional, Gunn, James E., additional, Harikane, Yuichi, additional, Ikeda, Hiroyuki, additional, Izumi, Takuma, additional, Kawaguchi, Toshihiro, additional, Kato, Nanako, additional, Kikuta, Satoshi, additional, Kohno, Kotaro, additional, Komiyama, Yutaka, additional, Lupton, Robert H., additional, Minezaki, Takeo, additional, Miyazaki, Satoshi, additional, Morokuma, Tomoki, additional, Murayama, Hitoshi, additional, Niida, Mana, additional, Nishizawa, Atsushi J., additional, Oguri, Masamune, additional, Ono, Yoshiaki, additional, Ouchi, Masami, additional, Price, Paul A., additional, Sameshima, Hiroaki, additional, Schulze, Andreas, additional, Shirakata, Hikari, additional, Silverman, John D., additional, Sugiyama, Naoshi, additional, Tait, Philip J., additional, Takada, Masahiro, additional, Takata, Tadafumi, additional, Tanaka, Masayuki, additional, Tang, Ji-Jia, additional, Toba, Yoshiki, additional, Utsumi, Yousuke, additional, Wang, Shiang-Yu, additional, and Yamashita, Takuji, additional

Published
2018
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35. First data release of the Hyper Suprime-Cam Subaru Strategic Program

Author

Aihara, Hiroaki, primary, Armstrong, Robert, additional, Bickerton, Steven, additional, Bosch, James, additional, Coupon, Jean, additional, Furusawa, Hisanori, additional, Hayashi, Yusuke, additional, Ikeda, Hiroyuki, additional, Kamata, Yukiko, additional, Karoji, Hiroshi, additional, Kawanomoto, Satoshi, additional, Koike, Michitaro, additional, Komiyama, Yutaka, additional, Lang, Dustin, additional, Lupton, Robert H, additional, Mineo, Sogo, additional, Miyatake, Hironao, additional, Miyazaki, Satoshi, additional, Morokuma, Tomoki, additional, Obuchi, Yoshiyuki, additional, Oishi, Yukie, additional, Okura, Yuki, additional, Price, Paul A, additional, Takata, Tadafumi, additional, Tanaka, Manobu M, additional, Tanaka, Masayuki, additional, Tanaka, Yoko, additional, Uchida, Tomohisa, additional, Uraguchi, Fumihiro, additional, Utsumi, Yousuke, additional, Wang, Shiang-Yu, additional, Yamada, Yoshihiko, additional, Yamanoi, Hitomi, additional, Yasuda, Naoki, additional, Arimoto, Nobuo, additional, Chiba, Masashi, additional, Finet, Francois, additional, Fujimori, Hiroki, additional, Fujimoto, Seiji, additional, Furusawa, Junko, additional, Goto, Tomotsugu, additional, Goulding, Andy, additional, Gunn, James E, additional, Harikane, Yuichi, additional, Hattori, Takashi, additional, Hayashi, Masao, additional, Hełminiak, Krzysztof G, additional, Higuchi, Ryo, additional, Hikage, Chiaki, additional, Ho, Paul T P, additional, Hsieh, Bau-Ching, additional, Huang, Kuiyun, additional, Huang, Song, additional, Imanishi, Masatoshi, additional, Iwata, Ikuru, additional, Jaelani, Anton T, additional, Jian, Hung-Yu, additional, Kashikawa, Nobunari, additional, Katayama, Nobuhiko, additional, Kojima, Takashi, additional, Konno, Akira, additional, Koshida, Shintaro, additional, Kusakabe, Haruka, additional, Leauthaud, Alexie, additional, Lee, Chien-Hsiu, additional, Lin, Lihwai, additional, Lin, Yen-Ting, additional, Mandelbaum, Rachel, additional, Matsuoka, Yoshiki, additional, Medezinski, Elinor, additional, Miyama, Shoken, additional, Momose, Rieko, additional, More, Anupreeta, additional, More, Surhud, additional, Mukae, Shiro, additional, Murata, Ryoma, additional, Murayama, Hitoshi, additional, Nagao, Tohru, additional, Nakata, Fumiaki, additional, Niida, Mana, additional, Niikura, Hiroko, additional, Nishizawa, Atsushi J, additional, Oguri, Masamune, additional, Okabe, Nobuhiro, additional, Ono, Yoshiaki, additional, Onodera, Masato, additional, Onoue, Masafusa, additional, Ouchi, Masami, additional, Pyo, Tae-Soo, additional, Shibuya, Takatoshi, additional, Shimasaku, Kazuhiro, additional, Simet, Melanie, additional, Speagle, Joshua, additional, Spergel, David N, additional, Strauss, Michael A, additional, Sugahara, Yuma, additional, Sugiyama, Naoshi, additional, Suto, Yasushi, additional, Suzuki, Nao, additional, Tait, Philip J, additional, Takada, Masahiro, additional, Terai, Tsuyoshi, additional, Toba, Yoshiki, additional, Turner, Edwin L, additional, Uchiyama, Hisakazu, additional, Umetsu, Keiichi, additional, Urata, Yuji, additional, Usuda, Tomonori, additional, Yeh, Sherry, additional, and Yuma, Suraphong, additional

Published
2017
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36. The Hyper Suprime-Cam SSP Survey: Overview and survey design

Author

Aihara, Hiroaki, primary, Arimoto, Nobuo, additional, Armstrong, Robert, additional, Arnouts, Stéphane, additional, Bahcall, Neta A, additional, Bickerton, Steven, additional, Bosch, James, additional, Bundy, Kevin, additional, Capak, Peter L, additional, Chan, James H H, additional, Chiba, Masashi, additional, Coupon, Jean, additional, Egami, Eiichi, additional, Enoki, Motohiro, additional, Finet, Francois, additional, Fujimori, Hiroki, additional, Fujimoto, Seiji, additional, Furusawa, Hisanori, additional, Furusawa, Junko, additional, Goto, Tomotsugu, additional, Goulding, Andy, additional, Greco, Johnny P, additional, Greene, Jenny E, additional, Gunn, James E, additional, Hamana, Takashi, additional, Harikane, Yuichi, additional, Hashimoto, Yasuhiro, additional, Hattori, Takashi, additional, Hayashi, Masao, additional, Hayashi, Yusuke, additional, Hełminiak, Krzysztof G, additional, Higuchi, Ryo, additional, Hikage, Chiaki, additional, Ho, Paul T P, additional, Hsieh, Bau-Ching, additional, Huang, Kuiyun, additional, Huang, Song, additional, Ikeda, Hiroyuki, additional, Imanishi, Masatoshi, additional, Inoue, Akio K, additional, Iwasawa, Kazushi, additional, Iwata, Ikuru, additional, Jaelani, Anton T, additional, Jian, Hung-Yu, additional, Kamata, Yukiko, additional, Karoji, Hiroshi, additional, Kashikawa, Nobunari, additional, Katayama, Nobuhiko, additional, Kawanomoto, Satoshi, additional, Kayo, Issha, additional, Koda, Jin, additional, Koike, Michitaro, additional, Kojima, Takashi, additional, Komiyama, Yutaka, additional, Konno, Akira, additional, Koshida, Shintaro, additional, Koyama, Yusei, additional, Kusakabe, Haruka, additional, Leauthaud, Alexie, additional, Lee, Chien-Hsiu, additional, Lin, Lihwai, additional, Lin, Yen-Ting, additional, Lupton, Robert H, additional, Mandelbaum, Rachel, additional, Matsuoka, Yoshiki, additional, Medezinski, Elinor, additional, Mineo, Sogo, additional, Miyama, Shoken, additional, Miyatake, Hironao, additional, Miyazaki, Satoshi, additional, Momose, Rieko, additional, More, Anupreeta, additional, More, Surhud, additional, Moritani, Yuki, additional, Moriya, Takashi J, additional, Morokuma, Tomoki, additional, Mukae, Shiro, additional, Murata, Ryoma, additional, Murayama, Hitoshi, additional, Nagao, Tohru, additional, Nakata, Fumiaki, additional, Niida, Mana, additional, Niikura, Hiroko, additional, Nishizawa, Atsushi J, additional, Obuchi, Yoshiyuki, additional, Oguri, Masamune, additional, Oishi, Yukie, additional, Okabe, Nobuhiro, additional, Okamoto, Sakurako, additional, Okura, Yuki, additional, Ono, Yoshiaki, additional, Onodera, Masato, additional, Onoue, Masafusa, additional, Osato, Ken, additional, Ouchi, Masami, additional, Price, Paul A, additional, Pyo, Tae-Soo, additional, Sako, Masao, additional, Sawicki, Marcin, additional, Shibuya, Takatoshi, additional, Shimasaku, Kazuhiro, additional, Shimono, Atsushi, additional, Shirasaki, Masato, additional, Silverman, John D, additional, Simet, Melanie, additional, Speagle, Joshua, additional, Spergel, David N, additional, Strauss, Michael A, additional, Sugahara, Yuma, additional, Sugiyama, Naoshi, additional, Suto, Yasushi, additional, Suyu, Sherry H, additional, Suzuki, Nao, additional, Tait, Philip J, additional, Takada, Masahiro, additional, Takata, Tadafumi, additional, Tamura, Naoyuki, additional, Tanaka, Manobu M, additional, Tanaka, Masaomi, additional, Tanaka, Masayuki, additional, Tanaka, Yoko, additional, Terai, Tsuyoshi, additional, Terashima, Yuichi, additional, Toba, Yoshiki, additional, Tominaga, Nozomu, additional, Toshikawa, Jun, additional, Turner, Edwin L, additional, Uchida, Tomohisa, additional, Uchiyama, Hisakazu, additional, Umetsu, Keiichi, additional, Uraguchi, Fumihiro, additional, Urata, Yuji, additional, Usuda, Tomonori, additional, Utsumi, Yousuke, additional, Wang, Shiang-Yu, additional, Wang, Wei-Hao, additional, Wong, Kenneth C, additional, Yabe, Kiyoto, additional, Yamada, Yoshihiko, additional, Yamanoi, Hitomi, additional, Yasuda, Naoki, additional, Yeh, Sherry, additional, Yonehara, Atsunori, additional, and Yuma, Suraphong, additional

Published
2017
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37. Subaru High-z Exploration of Low-Luminosity Quasars (SHELLQs). II. Discovery of 32 quasars and luminous galaxies at 5.7 < z ≤ 6.8

Author

Matsuoka, Yoshiki, primary, Onoue, Masafusa, additional, Kashikawa, Nobunari, additional, Iwasawa, Kazushi, additional, Strauss, Michael A, additional, Nagao, Tohru, additional, Imanishi, Masatoshi, additional, Lee, Chien-Hsiu, additional, Akiyama, Masayuki, additional, Asami, Naoko, additional, Bosch, James, additional, Foucaud, Sébastien, additional, Furusawa, Hisanori, additional, Goto, Tomotsugu, additional, Gunn, James E, additional, Harikane, Yuichi, additional, Ikeda, Hiroyuki, additional, Izumi, Takuma, additional, Kawaguchi, Toshihiro, additional, Kikuta, Satoshi, additional, Kohno, Kotaro, additional, Komiyama, Yutaka, additional, Lupton, Robert H, additional, Minezaki, Takeo, additional, Miyazaki, Satoshi, additional, Morokuma, Tomoki, additional, Murayama, Hitoshi, additional, Niida, Mana, additional, Nishizawa, Atsushi J, additional, Oguri, Masamune, additional, Ono, Yoshiaki, additional, Ouchi, Masami, additional, Price, Paul A, additional, Sameshima, Hiroaki, additional, Schulze, Andreas, additional, Shirakata, Hikari, additional, Silverman, John D, additional, Sugiyama, Naoshi, additional, Tait, Philip J, additional, Takada, Masahiro, additional, Takata, Tadafumi, additional, Tanaka, Masayuki, additional, Tang, Ji-Jia, additional, Toba, Yoshiki, additional, Utsumi, Yousuke, additional, and Wang, Shiang-Yu, additional

Published
2017
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38. Hyper-Luminous Dust-Obscured Galaxies Discovered by the Hyper Suprime-Cam on Subaru and WISE

Author

Strauss, Michael A., Bosch, James, Bundy, Kevin, Lupton, Robert H., Price, Paul, Tait, Philip J., Turner, Edwin L., Toba, Yoshiki, Nagao, Tohru, Aoki, Kentaro, Goto, Tomotsugu, Imanishi, Masatoshi, Kawaguchi, Toshihiro, Terashima, Yuichi, Ueda, Yoshihiro, Doi, Yoshiyuki, Inami, Hanae, Komiyama, Yutaka, Matsuhara, Hideo, Matsuoka, Yoshiki, Miyazaki, Satoshi, Morokuma, Tomoki, Nakata, Fumiaki, Oi, Nagisa, Onoue, Masafusa, Oyabu, Shinki, Takata, Tadafumi, Tanaka, Manobu M., Terai, Tsuyoshi, and Uchida, Tomohisa

Subjects
Luminous infrared galaxy, Physics, methods: statistical, Infrared, Astrophysics::High Energy Astrophysical Phenomena, galaxies: active, FOS: Physical sciences, Spectral density, Astronomy and Astrophysics, Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, AB magnitude, Astrophysics - Astrophysics of Galaxies, Galaxy, Redshift, Luminosity, infrared: galaxies, Space and Planetary Science, Astrophysics of Galaxies (astro-ph.GA), galaxies: luminosity function, mass function, Astrophysics::Solar and Stellar Astrophysics, Astrophysics::Earth and Planetary Astrophysics, Astrophysics::Galaxy Astrophysics, catalogs, Luminosity function (astronomy)
Abstract

著者人数: 34名, Accepted: 2015-05-25, 資料番号: SA1150159000

Published
2015

39. A WEAK LENSING VIEW OF THE DOWNSIZING OF STAR-FORMING GALAXIES

Author

Utsumi, Yousuke, primary, Geller, Margaret J., additional, Dell’Antonio, Ian P., additional, Kamata, Yukiko, additional, Kawanomoto, Satoshi, additional, Koike, Michitaro, additional, Komiyama, Yutaka, additional, Koshida, Shintaro, additional, Mineo, Sogo, additional, Miyazaki, Satoshi, additional, Sakurai, Junya, additional, Tait, Philip J., additional, Terai, Tsuyoshi, additional, Tomono, Daigo, additional, Usuda, Tomonori, additional, Yamada, Yoshihiko, additional, and Zahid, Harus J., additional

Published
2016
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40. GALAXY-SCALE GRAVITATIONAL LENS CANDIDATES FROM THE HYPER SUPRIME-CAM IMAGING SURVEY AND THE GALAXY AND MASS ASSEMBLY SPECTROSCOPIC SURVEY

Author

Chan, James H. H., primary, Suyu, Sherry H., additional, More, Anupreeta, additional, Oguri, Masamune, additional, Chiueh, Tzihong, additional, Coupon, Jean, additional, Hsieh, Bau-Ching, additional, Komiyama, Yutaka, additional, Miyazaki, Satoshi, additional, Murayama, Hitoshi, additional, Nishizawa, Atsushi J., additional, Price, Paul, additional, Tait, Philip J., additional, Terai, Tsuyoshi, additional, Utsumi, Yousuke, additional, and Wang, Shiang-Yu, additional

Published
2016
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41. A new quadruple gravitational lens from the Hyper Suprime-Cam Survey: the puzzle of HSC J115252+004733

Author

More, Anupreeta, primary, Lee, Chien-Hsiu, additional, Oguri, Masamune, additional, Ono, Yoshiaki, additional, Suyu, Sherry H., additional, Chan, James H. H., additional, Silverman, John D., additional, More, Surhud, additional, Schulze, Andreas, additional, Komiyama, Yutaka, additional, Matsuoka, Yoshiki, additional, Miyazaki, Satoshi, additional, Nagao, Tohru, additional, Ouchi, Masami, additional, Tait, Philip J., additional, Tanaka, Manobu M., additional, Tanaka, Masayuki, additional, Usuda, Tomonori, additional, and Yasuda, Naoki, additional

Published
2016
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42. SUBARU HIGH-zEXPLORATION OF LOW-LUMINOSITY QUASARS (SHELLQs). I. DISCOVERY OF 15 QUASARS AND BRIGHT GALAXIES AT 5.7 < 6.9

Author

Matsuoka, Yoshiki, primary, Onoue, Masafusa, additional, Kashikawa, Nobunari, additional, Iwasawa, Kazushi, additional, Strauss, Michael A., additional, Nagao, Tohru, additional, Imanishi, Masatoshi, additional, Niida, Mana, additional, Toba, Yoshiki, additional, Akiyama, Masayuki, additional, Asami, Naoko, additional, Bosch, James, additional, Foucaud, Sébastien, additional, Furusawa, Hisanori, additional, Goto, Tomotsugu, additional, Gunn, James E., additional, Harikane, Yuichi, additional, Ikeda, Hiroyuki, additional, Kawaguchi, Toshihiro, additional, Kikuta, Satoshi, additional, Komiyama, Yutaka, additional, Lupton, Robert H., additional, Minezaki, Takeo, additional, Miyazaki, Satoshi, additional, Morokuma, Tomoki, additional, Murayama, Hitoshi, additional, Nishizawa, Atsushi J., additional, Ono, Yoshiaki, additional, Ouchi, Masami, additional, Price, Paul A., additional, Sameshima, Hiroaki, additional, Silverman, John D., additional, Sugiyama, Naoshi, additional, Tait, Philip J., additional, Takada, Masahiro, additional, Takata, Tadafumi, additional, Tanaka, Masayuki, additional, Tang, Ji-Jia, additional, and Utsumi, Yousuke, additional

Published
2016
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43. Prime Focus Spectrograph (PFS) for the Subaru telescope: overview, recent progress, and future perspectives

Author

Tamura, Naoyuki, additional, Takato, Naruhisa, additional, Shimono, Atsushi, additional, Moritani, Yuki, additional, Yabe, Kiyoto, additional, Ishizuka, Yuki, additional, Ueda, Akitoshi, additional, Kamata, Yukiko, additional, Aghazarian, Hrand, additional, Arnouts, Stéphane, additional, Barban, Gabriel, additional, Barkhouser, Robert H., additional, Borges, Renato C., additional, Braun, David F., additional, Carr, Michael A., additional, Chabaud, Pierre-Yves, additional, Chang, Yin-Chang, additional, Chen, Hsin-Yo, additional, Chiba, Masashi, additional, Chou, Richard C. Y., additional, Chu, You-Hua, additional, Cohen, Judith, additional, de Almeida, Rodrigo P., additional, de Oliveira, Antonio C., additional, de Oliveira, Ligia S., additional, Dekany, Richard G., additional, Dohlen, Kjetil, additional, dos Santos, Jesulino B., additional, dos Santos, Leandro H., additional, Ellis, Richard, additional, Fabricius, Maximilian, additional, Ferrand, Didier, additional, Ferreira, Décio, additional, Golebiowski, Mirek, additional, Greene, Jenny E., additional, Gross, Johannes, additional, Gunn, James E., additional, Hammond, Randolph, additional, Harding, Albert, additional, Hart, Murdock, additional, Heckman, Timothy M., additional, Hirata, Christopher M., additional, Ho, Paul, additional, Hope, Stephen C., additional, Hovland, Larry, additional, Hsu, Shu-Fu, additional, Hu, Yen-Shan, additional, Huang, Ping-Jie, additional, Jaquet, Marc, additional, Jing, Yipeng, additional, Karr, Jennifer, additional, Kimura, Masahiko, additional, King, Matthew E., additional, Komatsu, Eiichiro, additional, Le Brun, Vincent, additional, Le Fèvre, Olivier, additional, Le Fur, Arnaud, additional, Le Mignant, David, additional, Ling, Hung-Hsu, additional, Loomis, Craig P., additional, Lupton, Robert H., additional, Madec, Fabrice, additional, Mao, Peter, additional, Marrara, Lucas S., additional, Mendes de Oliveira, Claudia, additional, Minowa, Yosuke, additional, Morantz, Chaz, additional, Murayama, Hitoshi, additional, Murray, Graham J., additional, Ohyama, Youichi, additional, Orndorff, Joseph, additional, Pascal, Sandrine, additional, Pereira, Jefferson M., additional, Reiley, Daniel, additional, Reinecke, Martin, additional, Ritter, Andreas, additional, Roberts, Mitsuko, additional, Schwochert, Mark A., additional, Seiffert, Michael D., additional, Smee, Stephen A., additional, Sodre, Laerte, additional, Spergel, David N., additional, Steinkraus, Aaron J., additional, Strauss, Michael A., additional, Surace, Christian, additional, Suto, Yasushi, additional, Suzuki, Nao, additional, Swinbank, John, additional, Tait, Philip J., additional, Takada, Masahiro, additional, Tamura, Tomonori, additional, Tanaka, Yoko, additional, Tresse, Laurence, additional, Verducci, Orlando, additional, Vibert, Didier, additional, Vidal, Clement, additional, Wang, Shiang-Yu, additional, Wen, Chih-Yi, additional, Yan, Chi-Hung, additional, and Yasuda, Naoki, additional

Published
2016
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44. Hyper-luminous dust-obscured galaxies discovered by the Hyper Suprime-Cam on Subaru and WISE

Author

Toba, Yoshiki, primary, Nagao, Tohru, additional, Strauss, Michael A., additional, Aoki, Kentaro, additional, Goto, Tomotsugu, additional, Imanishi, Masatoshi, additional, Kawaguchi, Toshihiro, additional, Terashima, Yuichi, additional, Ueda, Yoshihiro, additional, Bosch, James, additional, Bundy, Kevin, additional, Doi, Yoshiyuki, additional, Inami, Hanae, additional, Komiyama, Yutaka, additional, Lupton, Robert H., additional, Matsuhara, Hideo, additional, Matsuoka, Yoshiki, additional, Miyazaki, Satoshi, additional, Morokuma, Tomoki, additional, Nakata, Fumiaki, additional, Oi, Nagisa, additional, Onoue, Masafusa, additional, Oyabu, Shinki, additional, Price, Paul, additional, Tait, Philip J., additional, Takata, Tadafumi, additional, Tanaka, Manobu M., additional, Terai, Tsuyoshi, additional, Turner, Edwin L., additional, Uchida, Tomohisa, additional, Usuda, Tomonori, additional, Utsumi, Yousuke, additional, Yamada, Yoshihiko, additional, and Wang, Shiang-Yu, additional

Published
2015
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45. Prime Focus Spectrograph (PFS) for the Subaru telescope: ongoing integration and future plans

Author

Evans, Christopher J., Simard, Luc, Takami, Hideki, Tamura, Naoyuki, Takato, Naruhisa, Shimono, Atsushi, Moritani, Yuki, Yabe, Kiyoto, Ishizuka, Yuki, Kamata, Yukiko, Ueda, Akitoshi, Aghazarian, Hrand, Arnouts, Stephané, Barkhouser, Robert H., Balard, Philippe, Barette, Rudy, Belhadi, Mohamed, Burnham, Jill A., Caplar, Neven, Carr, Michael A., Chabaud, Pierre-Yves, Chang, Yin-Chang, Chen, Hsin-Yo, Chou, Chueh-Yi, Chu, You-Hua, Cohen, Judith G., de Almeida, Rodorigo P., de Oliveira, Antonio C., de Oliveira, Lígia S., Dekany, Richard G., Dohlen, Kjetil, dos Santos, Jesulino B., dos Santos, Leandro H., Ellis, Richard S., Fabricius, Maximilian, Ferreira, Decio, Furusawa, Hisanori, Garcia-Carpio, Javier, Golebiowski, Mirek, Gross, Johannes, Gunn, James E., Hammond, Randolph, Harding, Albert, Hart, Murdock, Heckman, Timothy M., Ho, Paul T. P., Hope, Stephen C., Hover, David J., Hsu, Shu-Fu, Hu, Yen-Shan, Huang, Ping-Jie, Jamal, Sara, Jaquet, Marc, Jeschke, Eric, Jing, Yipeng, Kado-Fong, Erin, Karr, Jeniffer L., Kimura, Masahiko, King, Matthew E., Koike, Michitaro, Komatsu, Eiichiro, Le Brun, Vincent, Le Fèvre, Olivier, Le Fur, Arnaud, Le Mignant, David, Ling, Hung-Hsu, Loomis, Craig P., Lupton, Robert H., Madec, Fabrice, Mao, Peter H., Marchesini, Danilo, Marrara, Lucas S., Medvedev, Dmitry, Mineo, Sogo, Minowa, Yosuke, Murayama, Hitoshi, Murray, Graham J., Ohyama, Youichi, Onodera, Masato, Orndorff, Joseph, Pascal, Sandrine, Peebles, Josh, Pernot, Guillaume, Pourcelot, Raphael, Reiley, Daniel J., Reinecke, Martin, Roberts, Mitsuko, Rosa, Josimar A., Rousselle, Julien, Schmitt, Alain, Schwochert, Mark A., Seiffert, Micheal D., Siddiqui, Hassan, Smee, Stephen A., Sodré, Laerte, Steinkraus, Aaron J., Strauss, Michael A., Surace, Christian, Tait, Philip J., Takada, Masahiro, Tamura, Tomonori, Tanaka, Masayuki, Tanaka, Yoko, Thakar, Aniruddha R., Verducci, Orlando, Vibert, Didier, Wang, Shiang-Yu, Wang, Zuo, Wen, Chih-Yi, Werner, Suzanne, Yamada, Yoshihiko, Yan, Chi-Hung, Yasuda, Naoki, Yoshida, Hiroshige, and Yoshida, Michitoshi

Published
2018
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46. A new quadruple gravitational lens from the Hyper Suprime-Cam Survey: the puzzle of HSC J115252+004733.

Author

Anupreeta More, Chien-Hsiu Lee, Masamune Oguri, Yoshiaki Ono, Suyu, Sherry H., Chan, James H. H., Silverman, John D., Surhud More, Andreas Schulze, Yutaka Komiyama, Yoshiki Matsuoka, Satoshi Miyazaki, Tohru Nagao, Masami Ouchi, Tait, Philip J., Tanaka, Manobu M., Masayuki Tanaka, Tomonori Usuda, and Naoki Yasuda

Subjects
GRAVITATIONAL lenses, ACTIVE galactic nuclei, LUMINOSITY, GALACTIC evolution, IMAGING systems
Abstract

We report the serendipitous discovery of a quadruply lensed source at zs = 3.76, HSC J115252+004733, from the Hyper Suprime-Cam (HSC) Survey. The source is lensed by an early-type galaxy at zl = 0.466 and a satellite galaxy. Here, we investigate the properties of the source by studying its size and luminosity from the imaging and the luminosity and velocity width of the Ly-a line from the spectrum. Our analyses suggest that the source is most probably a low-luminosity active galactic nucleus (LLAGN) but the possibility of it being a compact bright galaxy (e.g. a Lyman-a emitter or lyman break galaxy) cannot be excluded. The brighter pair of lensed images appears point-like except in the HSC i band (with a seeing ~0.5 arcsec). The extended emission in the i-band image could be due to the host galaxy underneath the AGN, or alternatively, due to a highly compact lensed galaxy (without AGN) which appears point-like in all bands except in i band. We also find that the flux ratio of the brighter pair of images is different in the Ks band compared to opticalwavelengths. Phenomena such as differential extinction and intrinsic variability cannot explain this chromatic variation. While microlensing from stars in the foreground galaxy is less likely to be the cause, it cannot be ruled out completely. If the galaxy hosts an AGN, then this represents the highest redshift quadruply imaged AGN known to date, enabling study of a distant LLAGN. Discovery of this unusually compact and faint source demonstrates the potential of the HSC survey. [ABSTRACT FROM AUTHOR]

Published
2017
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47. Prime Focus Spectrograph (PFS) for the Subaru telescope: overview, recent progress, and future perspectives

Author

Evans, Christopher J., Simard, Luc, Takami, Hideki, Tamura, Naoyuki, Takato, Naruhisa, Shimono, Atsushi, Moritani, Yuki, Yabe, Kiyoto, Ishizuka, Yuki, Ueda, Akitoshi, Kamata, Yukiko, Aghazarian, Hrand, Arnouts, Stéphane, Barban, Gabriel, Barkhouser, Robert H., Borges, Renato C., Braun, David F., Carr, Michael A., Chabaud, Pierre-Yves, Chang, Yin-Chang, Chen, Hsin-Yo, Chiba, Masashi, Chou, Richard C. Y., Chu, You-Hua, Cohen, Judith, de Almeida, Rodrigo P., de Oliveira, Antonio C., de Oliveira, Ligia S., Dekany, Richard G., Dohlen, Kjetil, dos Santos, Jesulino B., dos Santos, Leandro H., Ellis, Richard, Fabricius, Maximilian, Ferrand, Didier, Ferreira, Décio, Golebiowski, Mirek, Greene, Jenny E., Gross, Johannes, Gunn, James E., Hammond, Randolph, Harding, Albert, Hart, Murdock, Heckman, Timothy M., Hirata, Christopher M., Ho, Paul, Hope, Stephen C., Hovland, Larry, Hsu, Shu-Fu, Hu, Yen-Shan, Huang, Ping-Jie, Jaquet, Marc, Jing, Yipeng, Karr, Jennifer, Kimura, Masahiko, King, Matthew E., Komatsu, Eiichiro, Le Brun, Vincent, Le Fèvre, Olivier, Le Fur, Arnaud, Le Mignant, David, Ling, Hung-Hsu, Loomis, Craig P., Lupton, Robert H., Madec, Fabrice, Mao, Peter, Marrara, Lucas S., Mendes de Oliveira, Claudia, Minowa, Yosuke, Morantz, Chaz, Murayama, Hitoshi, Murray, Graham J., Ohyama, Youichi, Orndorff, Joseph, Pascal, Sandrine, Pereira, Jefferson M., Reiley, Daniel, Reinecke, Martin, Ritter, Andreas, Roberts, Mitsuko, Schwochert, Mark A., Seiffert, Michael D., Smee, Stephen A., Sodre, Laerte, Spergel, David N., Steinkraus, Aaron J., Strauss, Michael A., Surace, Christian, Suto, Yasushi, Suzuki, Nao, Swinbank, John, Tait, Philip J., Takada, Masahiro, Tamura, Tomonori, Tanaka, Yoko, Tresse, Laurence, Verducci, Orlando, Vibert, Didier, Vidal, Clement, Wang, Shiang-Yu, Wen, Chih-Yi, Yan, Chi-Hung, and Yasuda, Naoki

Published
2016
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48. Prime Focus Spectrograph (PFS) for the Subaru Telescope: its start of the last development phase

Author

Evans, Christopher J., Bryant, Julia J., Motohara, Kentaro, Tamura, Naoyuki, Moritani, Yuki, Yabe, Kiyoto, Ishizuka, Yuki, Kamata, Yukiko, Allaoui, Ali, Arai, Akira, Arnouts, Stéphane, Barkhouser, Robert H., Barette, Rudy, Blanchard, Patrick, Bergeron, Eddie, Caplar, Neven, Chabaud, Pierre-Yves, Chang, Yin-Chang, Chen, Hsin-Yo, Chou, Chueh-Yi, Chu, You-Hua, Cohen, Judith G., da Costa, Richardo L., Crauchet, Thibaut, de Almeida, Rodrigo P., de Oliveira, Antonio C., de Oliveira, Ligia S., Dohlen, Kjetil, dos Santos, Leandro H., Ellis, Richard S., Fabricius, Maximilian, Ferreira, Décio, Furusawa, Hisanori, Givans, Jahmour J., Garciá-Carpio, Javier, Golebiowski, Mirek, Gray, Aidan, Gunn, James E., Hamano, Satoshi, Hammond, Randolph P., Harding, Albert, Hayashi, Kota, He, Wanqiu, Heckman, Timothy M., Hope, Stephen C., Hsu, Shu-Fu, Hu, Yen-Shan, Huang, Pin Jie, Ishigaki, Miho N., Jeschke, Eric, Jing, Yipeng, Kado-Fong, Erin, Karr, Jennifer L., Kawanomoto, Satoshi, Kimura, Masahiko, Koike, Michitaro, Komatsu, Eiichiro, Koshida, Shintaro, Le Brun, Vincent, Le Fur, Arnaud, Le Mignant, David, Lhoussaine, Romain, Lin, Yen-Ting, Ling, Hung-Hsu, Loomis, Craig P., Lupton, Robert H., Madec, Fabrice, Marchesini, Danilo, Marguerite, Edouard, Marrara, Lucas S., Medvedev, Dmitry, Mineo, Sogo, Miyazaki, Satoshi, Morishima, Takahiro, Murata, Kazumi, Murayama, Hitoshi, Murray, Graham J., Okita, Hirofumi, Onodera, Masato, Peebles, Joshua, Price, Paul, Pyo, Tae-Soo, Ramos, Lucio, Reiley, Daniel J., Reinecke, Martin, Roberts, Mitsuko, Rosa, Josimar A., Rousselle, Julien P., Sarkis, Mira, Seiffert, Michael D., Schubert, Kiaina, Siddiqui, Hassan, Smee, Stephen A., Sodré, Laerte, Strauss, Michael A., Surace, Christian, Taghizadeh Popp, Manuchehr, Tait, Philip J., Takada, Masahiro, Takagi, Yuhei, Tanaka, Masayuki, Tanaka, Yoko, Thakar, Aniruddha R., Vibert, Didier, Wang, Shiang-Yu, Wen, Chih-Yi, Werner, Suzanne, Wung, Matthew, Lemson, Gerald, Mitschang, Arik, Yasuda, Naoki, Yoshida, Hiroshige, Yan, Chi-Hung, Yoshida, Michitoshi, and Yamashita, Takuji

Published
2022
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49. Subaru High-zExploration of Low-Luminosity Quasars (SHELLQs). II. Discovery of 32 quasars and luminous galaxies at 5.7 < z≤ 6.8

Author

Matsuoka, Yoshiki, Onoue, Masafusa, Kashikawa, Nobunari, Iwasawa, Kazushi, Strauss, Michael A, Nagao, Tohru, Imanishi, Masatoshi, Lee, Chien-Hsiu, Akiyama, Masayuki, Asami, Naoko, Bosch, James, Foucaud, Sébastien, Furusawa, Hisanori, Goto, Tomotsugu, Gunn, James E, Harikane, Yuichi, Ikeda, Hiroyuki, Izumi, Takuma, Kawaguchi, Toshihiro, Kikuta, Satoshi, Kohno, Kotaro, Komiyama, Yutaka, Lupton, Robert H, Minezaki, Takeo, Miyazaki, Satoshi, Morokuma, Tomoki, Murayama, Hitoshi, Niida, Mana, Nishizawa, Atsushi J, Oguri, Masamune, Ono, Yoshiaki, Ouchi, Masami, Price, Paul A, Sameshima, Hiroaki, Schulze, Andreas, Shirakata, Hikari, Silverman, John D, Sugiyama, Naoshi, Tait, Philip J, Takada, Masahiro, Takata, Tadafumi, Tanaka, Masayuki, Tang, Ji-Jia, Toba, Yoshiki, Utsumi, Yousuke, and Wang, Shiang-Yu

Abstract

We present spectroscopic identification of 32 new quasars and luminous galaxies discovered at 5.7 < z≤ 6.8. This is the second in a series of papers presenting the results of the Subaru High-zExploration of Low-Luminosity Quasars (SHELLQs) project, which exploits the deep multi-band imaging data produced by the Hyper Suprime-Cam (HSC) Subaru Strategic Program survey. The photometric candidates were selected by a Bayesian probabilistic algorithm, and then observed with spectrographs on the Gran Telescopio Canarias and the Subaru Telescope. Combined with the sample presented in the previous paper of this series, we have now identified 64 HSC sources over about 430 deg2, which include 33 high-zquasars, 14 high-zluminous galaxies, two [O iii] emitters at z∼ 0.8, and 15 Galactic brown dwarfs. The new quasars have considerably lower luminosity (M1450∼ −25 to −22 mag) than most of the previously known high-zquasars. Several of these quasars have luminous (>1043erg s−1) and narrow (< 500 km s−1) Lyα lines, and also a possible mini broad-absorption-line system of N vλ1240 in the composite spectrum, which clearly separate them from typical quasars. On the other hand, the high-zgalaxies have extremely high luminosities (M1450∼ −24 to −22 mag) compared to other galaxies found at similar redshifts. With the discovery of these new classes of objects, we are opening up new parameter spaces in the high-zUniverse. Further survey observations and follow-up studies of the identified objects, including the construction of the quasar luminosity function at z∼ 6, are ongoing.

Published
2018
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50. First data release of the Hyper Suprime-Cam Subaru Strategic Program

Author

Aihara, Hiroaki, Armstrong, Robert, Bickerton, Steven, Bosch, James, Coupon, Jean, Furusawa, Hisanori, Hayashi, Yusuke, Ikeda, Hiroyuki, Kamata, Yukiko, Karoji, Hiroshi, Kawanomoto, Satoshi, Koike, Michitaro, Komiyama, Yutaka, Lang, Dustin, Lupton, Robert H, Mineo, Sogo, Miyatake, Hironao, Miyazaki, Satoshi, Morokuma, Tomoki, Obuchi, Yoshiyuki, Oishi, Yukie, Okura, Yuki, Price, Paul A, Takata, Tadafumi, Tanaka, Manobu M, Tanaka, Masayuki, Tanaka, Yoko, Uchida, Tomohisa, Uraguchi, Fumihiro, Utsumi, Yousuke, Wang, Shiang-Yu, Yamada, Yoshihiko, Yamanoi, Hitomi, Yasuda, Naoki, Arimoto, Nobuo, Chiba, Masashi, Finet, Francois, Fujimori, Hiroki, Fujimoto, Seiji, Furusawa, Junko, Goto, Tomotsugu, Goulding, Andy, Gunn, James E, Harikane, Yuichi, Hattori, Takashi, Hayashi, Masao, Hełminiak, Krzysztof G, Higuchi, Ryo, Hikage, Chiaki, Ho, Paul T P, Hsieh, Bau-Ching, Huang, Kuiyun, Huang, Song, Imanishi, Masatoshi, Iwata, Ikuru, Jaelani, Anton T, Jian, Hung-Yu, Kashikawa, Nobunari, Katayama, Nobuhiko, Kojima, Takashi, Konno, Akira, Koshida, Shintaro, Kusakabe, Haruka, Leauthaud, Alexie, Lee, Chien-Hsiu, Lin, Lihwai, Lin, Yen-Ting, Mandelbaum, Rachel, Matsuoka, Yoshiki, Medezinski, Elinor, Miyama, Shoken, Momose, Rieko, More, Anupreeta, More, Surhud, Mukae, Shiro, Murata, Ryoma, Murayama, Hitoshi, Nagao, Tohru, Nakata, Fumiaki, Niida, Mana, Niikura, Hiroko, Nishizawa, Atsushi J, Oguri, Masamune, Okabe, Nobuhiro, Ono, Yoshiaki, Onodera, Masato, Onoue, Masafusa, Ouchi, Masami, Pyo, Tae-Soo, Shibuya, Takatoshi, Shimasaku, Kazuhiro, Simet, Melanie, Speagle, Joshua, Spergel, David N, Strauss, Michael A, Sugahara, Yuma, Sugiyama, Naoshi, Suto, Yasushi, Suzuki, Nao, Tait, Philip J, Takada, Masahiro, Terai, Tsuyoshi, Toba, Yoshiki, Turner, Edwin L, Uchiyama, Hisakazu, Umetsu, Keiichi, Urata, Yuji, Usuda, Tomonori, Yeh, Sherry, and Yuma, Suraphong

Abstract

The Hyper Suprime-Cam Subaru Strategic Program (HSC-SSP) is a three-layered imaging survey aimed at addressing some of the most important outstanding questions in astronomy today, including the nature of dark matter and dark energy. The survey has been awarded 300 nights of observing time at the Subaru Telescope, and it started in 2014 March. This paper presents the first public data release of HSC-SSP. This release includes data taken in the first 1.7 yr of observations (61.5 nights), and each of the Wide, Deep, and UltraDeep layers covers about 108, 26, and 4 square degrees down to depths of i∼ 26.4, ∼26.5, and ∼27.0 mag, respectively (5 σ for point sources). All the layers are observed in five broad bands (grizy), and the Deep and UltraDeep layers are observed in narrow bands as well. We achieve an impressive image quality of 0${^{\prime\prime}_{.}}$6 in the iband in the Wide layer. We show that we achieve 1%–2% point spread function (PSF) photometry (root mean square) both internally and externally (against Pan-STARRS1), and ∼10 mas and 40 mas internal and external astrometric accuracy, respectively. Both the calibrated images and catalogs are made available to the community through dedicated user interfaces and database servers. In addition to the pipeline products, we also provide value-added products such as photometric redshifts and a collection of public spectroscopic redshifts. Detailed descriptions of all the data can be found online. The data release website is https://hsc-release.mtk.nao.ac.jp.

Published
2018
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