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1. Near-Infrared Survey and Photometric Redshifts in the Extended GOODS-North field

Author: Hsu, Li-Ting, Lin, Lihwai, Dickinson, Mark, Yan, Haojing, Bau-Ching, Hsieh, Wang, Wei-Hao, Lee, Chien-Hsiu, Yan, Chi-Hung, Scott, Douglas, Willner, S. P., Ouchi, Masami, Ashby, Matthew L. N., Chen, Yi-Wen, Daddi, Emanuele, Elbaz, David, Fazio, Giovanni G., Foucaud, Sebastien, Huang, Jiasheng, Koo, David C., Morrison, Glenn, Owen, Frazer, Pannella, Maurilio, Pope, Alexendra, Simard, Luc, and Wang, Shiang-Yu
Subjects: Astrophysics - Astrophysics of Galaxies
Abstract: We present deep $J$ and $H$-band images in the extended Great Observatories Origins Deep Survey-North (GOODS-N) field covering an area of 0.22 $\rm{deg}^{2}$. The observations were taken using WIRCam on the 3.6-m Canada France Hawaii Telescope (CFHT). Together with the reprocessed $K_{\rm s}$-band image, the $5\sigma$ limiting AB magnitudes (in 2" diameter apertures) are 24.7, 24.2, and 24.4 AB mag in the $J$, $H$, and $K_{\rm s}$ bands, respectively. We also release a multi-band photometry and photometric redshift catalog containing 93598 sources. For non-X-ray sources, we obtained a photometric redshift accuracy $\sigma_{\mathrm{NMAD}}=0.036$ with an outlier fraction $\eta = 7.3\%$. For X-ray sources, which are mainly active galactic nuclei (AGNs), we cross-matched our catalog with the updated 2M-CDFN X-ray catalog from Xue et al. (2016) and found that 658 out of 683 X-ray sources have counterparts. $GALEX$ UV data are included in the photometric redshift computation for the X-ray sources to give $\sigma_{\mathrm{NMAD}} = 0.040$ with $\eta=10.5\%$. Our approach yields more accurate photometric redshift estimates compared to previous works in this field. In particular, by adopting AGN-galaxy hybrid templates, our approach delivers photometric redshifts for the X-ray counterparts with fewer outliers compared to the 3D-HST catalog, which fit these sources with galaxy-only templates.
Published: 2018
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2. 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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3. The Current Status of Prime Focus Instrument of Subaru Prime Focus Spectrograph

Author: Wang, Shiang-Yu, Schwochert, Mark A., Huang, Pin-Jie, Chen, Hsin-Yo, Kimura, Masahiko, Chou, Richard C. Y., Chang, Yin-Chang, Hu, Yen-Sang, Ling, Hung-Hsu, Morantz, Chaz N., Reiley, Dan J., Mao, Peter, Braun, David F., Wen, Chih-Yi, Yan, Chi-Hung, Karr, Jennifer, Gunn, James E., Murray, Graham, Tamura, Naoyuki, Takato, Naruhisa, Shimono, Atsushi, Ferreira, Decio, Santosh, Leandro Henriqu dos, Oliveira, Ligia Souza, de Oliveira, Antonio Cesar, and Marrara, Lucas Souza
Subjects: Astrophysics - Instrumentation and Methods for Astrophysics
Abstract: The Prime Focus Spectrograph (PFS) is a new optical/near-infrared multi-fiber spectrograph design for the prime focus of the 8.2m Subaru telescope. PFS will cover 1.3 degree diameter field with 2394 fibers to complement the imaging capability of Hyper SuprimeCam (HSC). The prime focus unit of PFS called Prime Focus Instrument (PFI) provides the interface with the top structure of Subaru telescope and also accommodates the optical bench in which Cobra fiber positioners are located. In addition, the acquisition and guiding cameras (AGCs), the optical fiber positioner system, the cable wrapper, the fiducial fibers, illuminator, and viewer, the field element, and the telemetry system are located inside the PFI. The mechanical structure of the PFI was designed with special care such that its deflections sufficiently match those of the HSC's Wide Field Corrector (WFC) so the fibers will stay on targets over the course of the observations within the required accuracy. In this report, the latest status of PFI development will be given including the performance of PFI components, the setup and performance of the integration and testing equipment., Comment: 9 pages, 8 figures, SPIE proceeding
Published: 2016
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4. Prime Focus Spectrograph for the Subaru telescope: massively multiplexed optical and near-infrared fiber spectrograph

Author: Sugai, Hajime, Tamura, Naoyuki, Karoji, Hiroshi, Shimono, Atsushi, Takato, Naruhisa, Kimura, Masahiko, Ohyama, Youichi, Ueda, Akitoshi, Aghazarian, Hrand, de Arruda, Marcio Vital, Barkhouser, Robert H., Bennett, Charles L., Bickerton, Steve, Bozier, Alexandre, Braun, David F., Bui, Khanh, Capocasale, Christopher M., Carr, Michael A., Castilho, Bruno, Chang, Yin-Chang, Chen, Hsin-Yo, Chou, Richard C. Y., Dawson, Olivia R., Dekany, Richard G., Ek, Eric M., Ellis, Richard S., English, Robin J., Ferrand, Didier, Ferreira, Décio, Fisher, Charles D., Golebiowski, Mirek, Gunn, James E., Hart, Murdock, Heckman, Timothy M., Ho, Paul T. P., Hope, Stephen, Hovland, Larry E., Hsu, Shu-Fu, Hu, Yen-Shan, Huang, Pin Jie, Jaquet, Marc, Karr, Jennifer E., Kempenaar, Jason G., King, Matthew E., Fèvre, Olivier Le, Mignant, David Le, Ling, Hung-Hsu, Loomis, Craig, Lupton, Robert H., Madec, Fabrice, Mao, Peter, Marrara, Lucas Souza, Ménard, Brice, Morantz, Chaz, Murayama, Hitoshi, Murray, Graham J., de Oliveira, Antonio Cesar, de Oliveira, Claudia Mendes, de Oliveira, Ligia Souza, Orndorff, Joe D., Vilaça, Rodrigo de Paiva, Partos, Eamon J., Pascal, Sandrine, Pegot-Ogier, Thomas, Reiley, Daniel J., Riddle, Reed, Santos, Leandro, Santos, Jesulino Bispo dos, Schwochert, Mark A., Seiffert, Michael D., Smee, Stephen A., Smith, Roger M., Steinkraus, Ronald E., Sodré Jr, Laerte, Spergel, David N., Surace, Christian, Tresse, Laurence, Vidal, Clément, Vives, Sebastien, Wang, Shiang-Yu, Wen, Chih-Yi, Wu, Amy C., Wyse, Rosie, and Yan, Chi-Hung
Subjects: Astrophysics - Instrumentation and Methods for Astrophysics
Abstract: The Prime Focus Spectrograph (PFS) is an optical/near-infrared multifiber spectrograph with 2394 science fibers distributed across a 1.3-deg diameter field of view at the Subaru 8.2-m telescope. The wide wavelength coverage from 0.38 {\mu}m to 1.26 {\mu}m, with a resolving power of 3000, simultaneously strengthens its ability to target three main survey programs: cosmology, galactic archaeology and galaxy/AGN evolution. A medium resolution mode with a resolving power of 5000 for 0.71 {\mu}m to 0.89 {\mu}m will also be available by simply exchanging dispersers. We highlight some of the technological aspects of the design. To transform the telescope focal ratio, a broad-band coated microlens is glued to each fiber tip. A higher transmission fiber is selected for the longest part of the cable system, optimizing overall throughput; a fiber with low focal ratio degradation is selected for the fiber-positioner and fiber-slit components, minimizing the effects of fiber movements and fiber bending. Fiber positioning will be performed by a positioner consisting of two stages of piezo-electric rotary motors. The positions of these motors are measured by taking an image of artificially back-illuminated fibers with the metrology camera located in the Cassegrain container; the fibers are placed in the proper location by iteratively measuring and then adjusting the positions of the motors. Target light reaches one of the four identical fast-Schmidt spectrograph modules, each with three arms. The PFS project has passed several project-wide design reviews and is now in the construction phase., Comment: 19 pages, 11 figures
Published: 2015
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5. Metrology Camera System of Prime Focus Spectrograph for Subaru Telescope

Author: Wang, Shiang-Yu, Chou, Richard C. -Y., Chang, Yin-Chang, Huang, Pin-Jie, Hu, Yen-Sang, Chen, Hsin-Yo, Tamura, Naoyuki, Takato, Naruhisa, Ling, Hung-Hsu, Gunn, James E., Karr, Jennifer, Yan, Chi-Hung, Mao, Peter, Ohyama, Youichi, Karoji, Hiroshi, Sugai, Hajime, and Shimono, Atsushi
Subjects: Astrophysics - Instrumentation and Methods for Astrophysics
Abstract: The Prime Focus Spectrograph (PFS) is a new optical/near-infrared multi-fiber spectrograph designed for the prime focus of the 8.2m Subaru telescope. The metrology camera system of PFS serves as the optical encoder of the COBRA fiber motors for the configuring of fibers. The 380mm diameter aperture metrology camera will locate at the Cassegrain focus of Subaru telescope to cover the whole focal plane with one 50M pixel Canon CMOS sensor. The metrology camera is designed to provide the fiber position information within 5{\mu}m error over the 45cm focal plane. The positions of all fibers can be obtained within 1s after the exposure is finished. This enables the overall fiber configuration to be less than 2 minutes., Comment: 10 pages, 12 figures, SPIE Astronomical Telescopes and Instrumentation 2014
Published: 2014
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6. Progress with the Prime Focus Spectrograph for the Subaru Telescope: a massively multiplexed optical and near-infrared fiber spectrograph

Author: Sugai, Hajime, Tamura, Naoyuki, Karoji, Hiroshi, Shimono, Atsushi, Takato, Naruhisa, Kimura, Masahiko, Ohyama, Youichi, Ueda, Akitoshi, Aghazarian, Hrand, de Arruda, Marcio Vital, Barkhouser, Robert H., Bennett, Charles L., Bickerton, Steve, Bozier, Alexandre, Braun, David F., Bui, Khanh, Capocasale, Christopher M., Carr, Michael A., Castilho, Bruno, Chang, Yin-Chang, Chen, Hsin-Yo, Chou, Richard C. Y., Dawson, Olivia R., Dekany, Richard G., Ek, Eric M., Ellis, Richard S., English, Robin J., Ferrand, Didier, Ferreira, Décio, Fisher, Charles D., Golebiowski, Mirek, Gunn, James E., Hart, Murdock, Heckman, Timothy M., Ho, Paul T. P., Hope, Stephen, Hovland, Larry E., Hsuc, Shu-Fu, Hu, Yen-Shan, Huang, Pin Jie, Jaquet, Marc, Karr, Jennifer E., Kempenaar, Jason G., King, Matthew E., Fèvre, Olivier Le, Mignant, David Le, Ling, Hung-Hsu, Loomis, Craig, Lupton, Robert H., Madec, Fabrice, Mao, Peter, Marrara, Lucas Souza, Ménard, Brice, Morantz, Chaz, Murayama, Hitoshi, Murray, Graham J., de Oliveira, Antonio Cesar, de Oliveira, Claudia Mendes, de Oliveira, Ligia Souza, Orndorff, Joe D., Vilaça, Rodrigo de Paiva, Partos, Eamon J., Pascal, Sandrine, Pegot-Ogier, Thomas, Reiley, Daniel J., Riddle, Reed, Santos, Leandro, Santos, Jesulino Bispo dos, Schwochert, Mark A., Seiffert, Michael D., Smee, Stephen A., Smith, Roger M., Steinkraus, Ronald E., Sodré Jr, Laerte, Spergel, David N., Surace, Christian, Tresse, Laurence, Vidal, Clément, Vives, Sebastien, Wang, Shiang-Yu, Wen, Chih-Yi, Wu, Amy C., Wyse, Rosie, and Yan, Chi-Hung
Subjects: Astrophysics - Instrumentation and Methods for Astrophysics
Abstract: The Prime Focus Spectrograph (PFS) is an optical/near-infrared multi-fiber spectrograph with 2394 science fibers, which are distributed in 1.3 degree diameter field of view at Subaru 8.2-meter telescope. The simultaneous wide wavelength coverage from 0.38 um to 1.26 um, with the resolving power of 3000, strengthens its ability to target three main survey programs: cosmology, Galactic archaeology, and galaxy/AGN evolution. A medium resolution mode with resolving power of 5000 for 0.71 um to 0.89 um also will be available by simply exchanging dispersers. PFS takes the role for the spectroscopic part of the Subaru Measurement of Images and Redshifts project, while Hyper Suprime-Cam works on the imaging part. To transform the telescope plus WFC focal ratio, a 3-mm thick broad-band coated glass-molded microlens is glued to each fiber tip. A higher transmission fiber is selected for the longest part of cable system, while one with a better FRD performance is selected for the fiber-positioner and fiber-slit components, given the more frequent fiber movements and tightly curved structure. Each Fiber positioner consists of two stages of piezo-electric rotary motors. Its engineering model has been produced and tested. Fiber positioning will be performed iteratively by taking an image of artificially back-illuminated fibers with the Metrology camera located in the Cassegrain container. The camera is carefully designed so that fiber position measurements are unaffected by small amounts of high special-frequency inaccuracies in WFC lens surface shapes. Target light carried through the fiber system reaches one of four identical fast-Schmidt spectrograph modules, each with three arms. Prototype VPH gratings have been optically tested. CCD production is complete, with standard fully-depleted CCDs for red arms and more-challenging thinner fully-depleted CCDs with blue-optimized coating for blue arms., Comment: 14 pages, 12 figures, submitted to "Ground-based and Airborne Instrumentation for Astronomy V, Suzanne K. Ramsay, Ian S. McLean, Hideki Takami, Editors, Proc. SPIE 9147 (2014)"
Published: 2014
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7. Time Monitoring of Radio Jets and Magnetospheres in the Nearby Young Stellar Cluster R Coronae Australis

Author: Liu, Hauyu Baobab, Galván-Madrid, Roberto, Forbrich, Jan, Rodríguez, Luis F., Takami, Michihiro, Costigan, Gráinne, Manara, Carlo Felice, Yan, Chi-Hung, Karr, Jennifer, Chou, Mei-Yin, Ho, Paul T. -P., and Zhang, Qizhou
Subjects: Astrophysics - Solar and Stellar Astrophysics
Abstract: We report JVLA 8-10 GHz ($\lambda$=3.0-3.7 cm) monitoring observations toward the YSO cluster R Coronae Australis (R\,CrA), taken in 2012, from March 15 to September 12. These observations were planned to measure the radio flux variabilities in timescales from 0.5 hours to several days, to tens of days, and up to $\sim$200 days. We found that among the YSOs detectable in individual epochs, in general, the most reddened objects in the \textit{Spitzer} observations show the highest mean 3.5 cm Stokes \textit{I} emission, and the lowest fractional variabilities on $<$200-day timescales. The brightest radio flux emitters in our observations are the two reddest sources IRS7W and IRS7E. In addition, by comparing with observations taken in 1996-1998 and 2005, we found that the radio fluxes of these two sources have increased by a factor $\sim$1.5. The mean 3.5-cm fluxes of the three Class I/II sources IRSI, IRS2, and IRS6 appear to be correlated with their accretion rates derived by a previous near infrared line survey. The weakly accreting Class I/II YSOs, or those in later evolutionary stages, present radio flux variability on $<$0.5-hour timescales. Some YSOs were detected only during occasional flaring events. The source R\,CrA went below our detection limit during a few fading events., Comment: Accepted to ApJ
Published: 2013
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8. The metrology cameras for Subaru PFS and FMOS

Author: Wang, Shiang-Yu, Hu, Yen-Shan, Yan, Chi-Hung, Chang, Yin-Chang, Tamura, Naoyuki, Takato, Naruhisa, Shimono, Atsushi, Karr, Jennifer, Ohyama, Youichi, Chen, Hsin-Yo, Ling, Hung-Hsu, Karoji, Hiroshi, Sugai, Hajime, and Ueda, Akitoshi
Subjects: Astrophysics - Instrumentation and Methods for Astrophysics
Abstract: The Prime Focus Spectrograph (PFS) is a new multi-fiber spectrograph on Subaru telescope. PFS will cover around 1.4 degree diameter field with ~2400 fibers. To ensure precise positioning of the fibers, a metrology camera is designed to provide the fiber position information within 5 {\mu}m error. The final positioning accuracy of PFS is targeted to be better than 10 {\mu}m. The metrology camera will locate at the Cassegrain focus of Subaru telescope to cover the whole focal plane. The PFS metrology camera will also serve for the existing multi-fiber infrared spectrograph FMOS., Comment: 7 pages, 5 figures; Ground-based and Airborne Instrumentation for Astronomy IV, Proc. SPIE 8446 (2012)
Published: 2012
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9. Prime Focus Spectrograph - Subaru's future -

Author: Sugai, Hajime, Karoji, Hiroshi, Takato, Naruhisa, Tamura, Naoyuki, Shimono, Atsushi, Ohyama, Youichi, Ueda, Akitoshi, Ling, Hung-Hsu, de Arruda, Marcio Vital, Barkhouser, Robert H., Bennett, Charles L., Bickerton, Steve, Braun, David F., Bruno, Robin J., Carr, Michael A., Oliveira, João Batista de Carvalho, Chang, Yin-Chang, Chen, Hsin-Yo, Dekany, Richard G., Dominici, Tania Pereira, Ellis, Richard S., Fisher, Charles D., Gunn, James E., Heckman, Timothy M., Ho, Paul T. P., Hu, Yen-Shan, Jaquet, Marc, Karr, Jennifer, Kimura, Masahiko, Fèvre, Olivier Le, Mignant, David Le, Loomis, Craig, Lupton, Robert H., Madec, Fabrice, Marrara, Lucas Souza, Martin, Laurent, Murayama, Hitoshi, de Oliveira, Antonio Cesar, de Oliveira, Claudia Mendes, de Oliveira, Ligia Souza, Orndorff, Joe D., Vilaça, Rodrigo de Paiva, Macanhan, Vanessa Bawden de Paula, Prieto, Eric, Santos, Jesulino Bispo dos, Seiffert, Michael D., Smee, Stephen A., Smith, Roger M., Sodré Jr, Laerte, Spergel, David N., Surace, Christian, Vives, Sebastien, Wang, Shiang-Yu, and Yan, Chi-Hung
Subjects: Astrophysics - Instrumentation and Methods for Astrophysics
Abstract: The Prime Focus Spectrograph (PFS) of the Subaru Measurement of Images and Redshifts (SuMIRe) project has been endorsed by Japanese community as one of the main future instruments of the Subaru 8.2-meter telescope at Mauna Kea, Hawaii. This optical/near-infrared multi-fiber spectrograph targets cosmology with galaxy surveys, Galactic archaeology, and studies of galaxy/AGN evolution. Taking advantage of Subaru's wide field of view, which is further extended with the recently completed Wide Field Corrector, PFS will enable us to carry out multi-fiber spectroscopy of 2400 targets within 1.3 degree diameter. A microlens is attached at each fiber entrance for F-ratio transformation into a larger one so that difficulties of spectrograph design are eased. Fibers are accurately placed onto target positions by positioners, each of which consists of two stages of piezo-electric rotary motors, through iterations by using back-illuminated fiber position measurements with a wide-field metrology camera. Fibers then carry light to a set of four identical fast-Schmidt spectrographs with three color arms each: the wavelength ranges from 0.38 {\mu}m to 1.3 {\mu}m will be simultaneously observed with an average resolving power of 3000. Before and during the era of extremely large telescopes, PFS will provide the unique capability of obtaining spectra of 2400 cosmological/astrophysical targets simultaneously with an 8-10 meter class telescope. The PFS collaboration, led by IPMU, consists of USP/LNA in Brazil, Caltech/JPL, Princeton, & JHU in USA, LAM in France, ASIAA in Taiwan, and NAOJ/Subaru., Comment: 13 pages, 11 figures, submitted to "Ground-based and Airborne Instrumentation for Astronomy IV, Ian S. McLean, Suzanne K. Ramsay, Hideki Takami, Editors, Proc. SPIE 8446 (2012)"
Published: 2012
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10. Is FS Tau B Driving an Asymmetric Jet?

Author: Liu, Chun-Fan, Shang, Hsien, Pyo, Tae-Soo, Takami, Michihiro, Walter, Frederick M., Yan, Chi-Hung, Wang, Shiang-Yu, Ohashi, Nagayoshi, and Hayashi, Masahiko
Subjects: Astrophysics - Solar and Stellar Astrophysics
Abstract: FS Tau B is one of the few T Tauri stars that possess a jet and a counterjet as well as an optically-visible cavity wall. We obtained images and spectra of its jet-cavity system in the near-infrared H and K bands using Subaru/IRCS and detected the jet and the counterjet in the [Fe II] 1.644 \mu m line for the first time. Within the inner 2" the blueshifted jet is brighter, whereas beyond ~ 5" the redshifted counterjet dominates the [Fe II] emission. The innermost blueshifted knot is spectrally resolved to have a large line width of ~ 110 km/s, while the innermost redshifted knot appears spectrally unresolved. The velocity ratio of the jet to the counterjet is ~ 1.34, which suggests that FS Tau B is driving an asymmetric jet, similar to those found in several T Tauri Stars. Combining with optical observations in the literature, we showed that the blueshifted jet has lower density and higher excitation than the redshifted counterjet. We suggest that the asymmetry in brightness and velocity is the manifestation of a bipolar outflow driving at different mass-loss rates, while maintaining balance of linear momentum. A full explanation to the asymmetry in the FS Tau B system awaits detail modeling and further investigation of the kinematic structure of the wind-associated cavity walls., Comment: 14 pages, 2 figures, 1 table; accepted for publication in ApJ. Aspect ratio changes for Fig.1c
Published: 2012
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11. Implementation plans for the data reduction pipeline for METIS at the ELT

Author: Ibsen, Jorge, Chiozzi, Gianluca, Leschinski, Kieran, Buddelmeijer, Hugo, Czoske, Oliver, Otten, Gilles, Balaz, Martin, Haberhauer, Fabian, Karr, Jennifer, Kausch, Wolfgang, Marquart, Thomas, Sabha, Nadeen, Yan, Chi-Hung, Przybilla, Norbert, Wang, Shiang-Yu, and Zeilinger, Werner
Published: 2024
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12. Prime Focus Spectrograph (PFS) for Subaru Telescope: the optimization of convergence for Cobra positioners

Author: Bryant, Julia J., Motohara, Kentaro, Vernet, Joël R. D., Wang, Shiang-Yu, Yan, Chi-Hung, Karr, Jennifer, Chou, Richard C. Y., Hsu, Shu-Fu, Gunn, James E., Loomis, Craig, Lupton, Robert H., Le Fur, Arnaud, Moritani, Yuki, Rousselle, Julien, Koshida, Shintaro, Morihana, Kumiko, Kawanomoto, Satoshi, Yoshida, Hiroshige, and Tamura, Naoyuki
Published: 2024
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13. Clustering properties of BzK-selected galaxies in GOODS-N: environmental quenching and triggering of star formation at z ~ 2

Author: Lin, Lihwai, Dickinson, Mark, Jian, Hung-Yu, Merson, A. I., Baugh, C. M., Scott, Douglas, Foucaud, Sebastien, Wang, Wei-Hao, Yan, Chi-Hung, Yan, Hao-Jing, Cheng, Yi-Wen, Guo, Yicheng, Helly, John, Kirsten, Franz, Koo, David C., Lagos, Claudia del P., Meger, Nicole, Pope, Alexandra, Simard, Luc, Grogin, Norman A., Messias, Hugo, and Wang, Shiang-Yu
Subjects: Astrophysics - Cosmology and Extragalactic Astrophysics
Abstract: Using a sample of BzK-selected galaxies at z~2 identified from the CFHT/WIRCAM near-infrared survey of GOODS-North, we discuss the relation between star formation rate (SFR), specific star formation rate (SSFR), and stellar mass (M_{*}), and the clustering of galaxies as a function of these parameters. For star-forming galaxies (sBzKs), the UV-based SFR, corrected for extinction, scales with the stellar mass as SFR ~ M_{*}^{alpha} with alpha = 0.74+/-0.20 down to M_{*} ~ 10^{9} M_{solar}, indicating a weak dependence on the stellar mass of the SSFR. We also measure the angular correlation function and hence infer the correlation length for sBzK galaxies as a function of M_{*}, SFR, and SSFR, as well as K-band apparent magnitude. We show that passive galaxies (pBzKs) are more strongly clustered than sBzK galaxies at a given stellar mass, mirroring the color-density relation seen at lower redshifts. We also find that the correlation length of sBzK galaxies ranges from 4 to 20 h^{-1}Mpc, being a strong function of M_{K}, M_{*}, and SFR. On the other hand, the clustering dependence on SSFR changes abruptly at 2x10^{-9} yr^{-1}, which is the typical value for "main sequence" star-forming galaxies at z~2. We show that the correlation length reaches a minimum at this characteristic value, and is larger for galaxies with both smaller and larger SSFRs; a dichotomy that is only marginally implied from the predictions of the semi-analytical models. Our results suggest that there are two types of environmental effects at work at z~2. Stronger clustering for relatively quiescent galaxies implies that the environment has started to play a role in quenching star formation. At the same time, stronger clustering for galaxies with elevated SSFRs ("starbursts") might be attributed to an increased efficiency for galaxy interactions and mergers in dense environments., Comment: 7 Figures, 2 Tables, 12 Pages. Accepted by ApJ. (This version has added one more figure (now Fig. 6) and the Section 4 (Discussion) has been largely reorganized compared to the previous version.)
Published: 2011
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14. Star-forming Region Sh 2-233IR I. Deep NIR Observations toward the Embedded Stellar Clusters

Author: Yan, Chi-Hung, Minh, Y. C., Wang, Shiang-Yu, Su, Yu-Nang, and Ginsburg, Adam
Subjects: Astrophysics - Solar and Stellar Astrophysics, Astrophysics - Galaxy Astrophysics
Abstract: We observed the Sh 2-233IR (S233IR) region with better sensitivity in near-infrared than previous studies for this region. By applying statistical subtraction of the back- ground stars, we identified member sources and derived the age and mass of three distinguishable sub-groups in this region: Sh 2-233IR NE, Sh 2-233IR SW, and the "distributed stars" over the whole cloud. Star formation may be occurring sequentially with a relatively small age difference (\sim 0.2-0.3 Myrs) between subclusters. We found that the slopes for initial mass function (Gamma \sim -0.5) of two subclusters are flatter than that of Salpeter, which suggests that more massive stars were preferentially formed in those clusters compared to other Galactic star-forming regions. These subclusters may not result from the overall collapse of the whole cloud, but have formed by triggering before the previous star formation activities disturbed the natal molecular cloud. Addi- tionally, high star formation efficiency (&40%) of the subclusters may also suggest that stars form very efficiently in the center of NE., Comment: 19 pages, 7 figures. Published in ApJ: http://adsabs.harvard.edu/abs/2010ApJ...720....1Y
Published: 2011
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15. z~4 Halpha Emitters in GOODS : Tracing the Dominant Mode for Growth of Galaxies

Author: Shim, Hyunjin, Chary, Ranga-Ram, Dickinson, Mark, Lin, Lihwai, Spinrad, Hyron, Stern, Daniel, and Yan, Chi-Hung
Subjects: Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract: We present evidence for unusually strong Halpha emission in galaxies with spectroscopic redshifts in the range of 3.810^11 Msun) galaxies. This 'strong Halpha phase' of star formation plays a dominant role in early galaxy growth, being a feasible progenitors of massive red galaxies at lower redshifts., Comment: Accepted for publication in ApJ
Published: 2011
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16. The Evolution of Density Structure of Starless and Protostellar Cores

Author: Hung, Chao-Ling, Lai, Shih-Ping, and Yan, Chi-Hung
Subjects: Astrophysics - Solar and Stellar Astrophysics, Astrophysics - Astrophysics of Galaxies
Abstract: We present a near-infrared extinction study of nine dense cores at evolutionary stages between starless to Class I. Our results show that the density structure of all but one observed cores can be modeled with a single power law rho \propto r^p between ~ 0.2R-R of the cores. The starless cores in our sample show two different types of density structures, one follows p ~ -1.0 and the other follows p ~ -2.5, while the protostellar cores all have p ~ -2.5. The similarity between the prestellar cores with p ~ -2.5 and protostellar cores implies that those prestellar cores could be evolving towards the protostellar stage. The slope of p ~ -2.5 is steeper than that of an singular isothermal sphere, which may be interpreted with the evolutionary model of cores with finite mass., Comment: 19 pages, 3 figures, accepted for publication in the Astrophysical Journal
Published: 2009
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17. Outflows and Massive Stars in the protocluster IRAS 05358+3543

Author: Ginsburg, Adam G., Bally, John, Yan, Chi-Hung, and Williams, Jonathan P.
Subjects: Astrophysics - Galaxy Astrophysics
Abstract: We present new near-IR H2, CO J=2-1, and CO J = 3-2 observations to study outflows in the massive star forming region IRAS 05358+3543. The Canada-France-Hawaii Telescope H2 images and James Clerk Maxwell Telescope CO data cubes of the IRAS 05358 region reveal several new outflows, most of which emerge from the dense cluster of sub-mm cores associated with the Sh 2-233IR NE cluster to the northeast of IRAS 05358. We used Apache Point Observatory (APO) JHK spectra to determine line of sight velocities of the outflowing material. Analysis of archival VLA cm continuum data and previously published VLBI observations reveal a massive star binary as a probable source of one or two of the outflows. We have identified probable sources for 6 outflows and candidate counterflows for 7 out of a total of 11 seen to be originating from the IRAS 05358 clusters. We classify the clumps within Sh 2-233IR NE as an early protocluster and Sh 2-233IR SW as a young cluster, and conclude that the outflow energy injection rate approximately matches the turbulent decay rate in Sh 2-233IR NE., Comment: 15 figures, 42 pages, accepted for publication in the Astrophysical Journal. Full size figures are included at http://casa.colorado.edu/~ginsbura/iras05358.htm. Data can be accessed from figshare: http://figshare.com/articles/IRAS_05358_3543_Data_Cubes/806315
Published: 2009
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18. The nature of faint Spitzer-selected dust-obscured galaxies

Author: Pope, Alexandra, Bussmann, R. Shane, Dey, Arjun, Meger, Nicole, Alexander, David M., Brodwin, Mark, Chary, Ranga-Ram, Dickinson, Mark E., Frayer, David T., Greve, Thomas R., Huynh, Minh, Lin, Lihwai, Morrison, Glenn, Scott, Douglas, and Yan, Chi-Hung
Subjects: Astrophysics
Abstract: We use deep far-IR, submm, radio and X-ray imaging and mid-IR spectroscopy to explore the nature of a sample of Spitzer-selected dust-obscured galaxies (DOGs) in GOODS-N. A sample of 79 galaxies satisfy the criteria R-[24]>14 (Vega) down to S24>100 microJy. Twelve of these galaxies have IRS spectra available which we use to measure redshifts and classify these objects as being dominated by star formation or active galactic nuclei (AGN) activity in the mid-IR. The IRS spectra and Spitzer photometric redshifts confirm that the DOGs lie in a tight redshift distribution around z~2. Based on mid-IR colors, 80% of DOGs are likely dominated by star formation; the stacked X-ray emission from this sub-sample of DOGs is also consistent with star formation. Since only a small number of DOGs are individually detected at far-IR and submm wavelengths, we use a stacking analysis to determine the average flux from these objects and plot a composite IR (8-1000 microns) spectral energy distribution (SED). The average luminosity of these star forming DOGs is LIR~1e12 Lsun. We compare the average star forming DOG to the average bright (S850>5 mJy) submillimeter galaxy (SMG); the S24>100 microJy DOGs are 3 times more numerous but 8 times less luminous in the IR. The far-IR SED shape of DOGs is similar to that of SMGs (average dust temperature of around 30 K) but DOGs have a higher mid-IR to far-IR flux ratio. The average star formation-dominated DOG has a star formation rate of 200 Msun/yr which, given their space density, amounts to a contribution of 0.01 Msun/yr/Mpc3 (or 5-10%) to the star formation rate density at z~2. We use the composite SED to predict the average flux of DOGs in future Herschel/PACS 100 micron and SCUBA-2 450 micron surveys and show that the majority of them will be detected., Comment: 7 pages, 5 figures; accepted for publication in ApJ
Published: 2008
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19. A Search for Interstellar Pyrimidine

Author: Kuan, Yi-Jehng, Yan, Chi-Hung, Charnley, Steven B., Kisiel, Zbigniew, Ehrenfreund, Pascale, and Huang, Hui-Chun
Subjects: Astrophysics
Abstract: We have searched three hot molecular cores for submillimeter emission from the nucleic acid building-block pyrimidine. We obtain upper limits to the total pyrimidine (beam-averaged) column densities towards Sgr B2(N), Orion KL and W51 e1/e2 of 1.7E+14 cm^{-2}, 2.4E+14 cm^{-2} and 3.4E+14 cm^{-2}, respectively. The associated upper limits to the pyrimidine fractional abundances lie in the range (0.3-3)E-10. Implications of this result for interstellar organic chemistry, and for the prospects of detecting nitrogen heterocycles in general, are briefly discussed., Comment: 8 pages, 5 figures, accepted for publication in MNRAS
Published: 2003
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20. Prime focus spectrograph (PFS) for the Subaru Telescope: the prime focus instrument

Author: Wang, Shiang-Yu, primary, Kimura, Masahiko, additional, Yan, Chi-Hung, additional, Chang, Yin-Chang, additional, Hsu, Shu-Fu, additional, Karr, Jennifer L., additional, Chen, Hsin-Yo, additional, Huang, Pin-Jie, additional, Wen, Chih-Yi, additional, Chou, Chueh-Yi, additional, Ling, Hung-Hsu, additional, Tamura, Naoyuki, additional, Moritani, Yuki, additional, Rousselle, Julien, additional, Yoshida, Hiroshige, additional, Koshida, Shintaro, additional, Takato, Naruhisa, additional, Reiley, Dan J., additional, Roberts, Mitsuko, additional, Gunn, James E., additional, Loomis, Craig P., additional, Lupton, Robert ., additional, Caplar, Neven, additional, Siddiqui, Hassan, additional, Ferreira, Décio, additional, dos Santos, Leandro H., additional, de Oliveira, Ligia S., additional, Cesar de Oliveira, Antonio, additional, Marrara, Lucas Souza, additional, Fabricius, Maximilian, additional, and Murray, Graham J., additional
Published: 2022
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21. 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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22. 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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23. 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

24. Prime Focus Spectrograph (PFS): the prime focus instrument

Author: Evans, Christopher J., Bryant, Julia J., Motohara, Kentaro, Wang, Shiang-Yu, Huang, Pin-Jie, Chen, Hsin-Yo, Kimura, Masahiko, Wen, Chih-Yi, Yan, Chi-Hung, Karr, Jennifer E., Chou, Richard C. Y., Chang, Yin-Chang, Hsu, Shu-Fu, Hu, Yen-Shan, Ling, Hung-Hsu, Reiley, Dan J., Roberts, Mitsuko, Gunn, James E., Loomis, Craig P., Lupton, Robert H., Siddiqui, Hassan, Murray, Graham J., Ferreira, Decio, dos Santos, Leandro H., de Oliveira, Ligia S., de Oliveira, Antonio Cesar, Marrara Souza, Lucas, Tamura, Naoyuki, Moritani, Yuki, Takato, Naruhisa, Evans, Christopher J., Bryant, Julia J., Motohara, Kentaro, Wang, Shiang-Yu, Huang, Pin-Jie, Chen, Hsin-Yo, Kimura, Masahiko, Wen, Chih-Yi, Yan, Chi-Hung, Karr, Jennifer E., Chou, Richard C. Y., Chang, Yin-Chang, Hsu, Shu-Fu, Hu, Yen-Shan, Ling, Hung-Hsu, Reiley, Dan J., Roberts, Mitsuko, Gunn, James E., Loomis, Craig P., Lupton, Robert H., Siddiqui, Hassan, Murray, Graham J., Ferreira, Decio, dos Santos, Leandro H., de Oliveira, Ligia S., de Oliveira, Antonio Cesar, Marrara Souza, Lucas, Tamura, Naoyuki, Moritani, Yuki, and Takato, Naruhisa
Abstract: The Prime Focus Spectrograph (PFS) is a new optical/near-infrared multi-fiber spectrograph design for the prime focus of the 8.2m Subaru telescope. PFS will cover 1.3 degrees diameter field with 2394 fibers to complement the imaging capability of Hyper SuprimeCam (HSC). The prime focus unit of PFS called Prime Focus Instrument (PFI) provides the interface with the top structure of Subaru telescope and also accommodates the optical bench in which Cobra fiber positioners and fiducial fibers are located. In addition, the acquisition and guiding cameras (AGCs), the cable wrapper, the fiducial fiber illuminator, and viewer, the field element, and the telemetry system are located inside the PFI. The mechanical structure of the PFI was designed with special care such that its deflections sufficiently match those of the HSC’s Wide Field Corrector (WFC) so the fibers will stay on targets over the course of the observations within the required accuracy. The delivery of PFI components started in 2017. After the verification of these components, the mechanical structure of the PFI is fully assembled in early 2019 and all Cobra positioners are integrated in summer 2020. A temperature controlled chamber with precise x-y scanner was setup for the verification of the fiber positioners. The testing of the target convergence performance of Cobra positioners is now in progress.
Published: 2020

25. Prime Focus Spectrograph (PFS): Fiber assignment through min-cost/max-flow

Author: Fabricius, Maximilian H., primary, Bender, Ralf, additional, Gracia-Carpio, Javier, additional, Gross, Johannes, additional, Gunn, Jim, additional, Komatsu, Eiichiro, additional, Lupton, Robert, additional, Mao, Peter, additional, Reinecke, Martin, additional, Tamura, Naoyuki, additional, Vanderbei, Robert, additional, Wang, Shiang-Yu, additional, Yabe, Kiyoto, additional, and Yan, Chi-Hung, additional
Published: 2020
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26. Prime Focus Spectrograph (PFS): the metrology camera system

Author: Wang, Shiang-Yu, primary, Chou, Richard C. Y., additional, Chang, Yin-Chang, additional, Huang, Pin-Jie, additional, Karr, Jennifer E., additional, Yan, Chi-Hung, additional, Gunn, James E., additional, Loomis, Craig P., additional, Lupton, Robert H., additional, Siddiqui, Hassan, additional, Shu, Hsu-Fu, additional, Hu, Yen-Shan, additional, Reiley, Daniel J., additional, Tamura, Naoyuki, additional, Moritani, Yuki, additional, and Takato, Naruhisa, additional
Published: 2020
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27. Prime Focus Spectrograph (PFS): the prime focus instrument

Author: Wang, Shiang-Yu, primary, Huang, Pin-Jie, additional, Chen, Hsin-Yo, additional, Kimura, Masahiko, additional, Wen, Chih-Yi, additional, Yan, Chi-Hung, additional, Karr, Jennifer E., additional, Chou, Richard C. Y., additional, Chang, Yin-Chang, additional, Hsu, Shu-Fu, additional, Hu, Yen-Shan, additional, Ling, Hung-Hsu, additional, Reiley, Daniel J., additional, Roberts, Mitsuko, additional, Gunn, James E., additional, Loomis, Craig P., additional, Lupton, Robert H., additional, Siddiqui, Hassan, additional, Murray, Graham J., additional, Ferreira, Décio, additional, dos Santos, Leandro H., additional, de Oliveira, Ligia S., additional, de Oliveira, Antonio Cesar, additional, Marrara, Lucas Souza, additional, Tamura, Naoyuki, additional, Moritani, Yuki, additional, and Takato, Naruhisa, additional
Published: 2020
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28. Prime focus spectrograph (PFS) for the Subaru Telescope: the prime focus instrument

Author: Evans, Christopher J., Bryant, Julia J., Motohara, Kentaro, Wang, Shiang-Yu, Kimura, Masahiko, Yan, Chi-Hung, Chang, Yin-Chang, Hsu, Shu-Fu, Karr, Jennifer, Chen, Hsin-Yo, Huang, Pin-Jie, Wen, Chih-Yi, Chou, Richard C. Y., Ling, Hung-Hsu, Tamura, Naoyuki, Moritani, Yuki, Rousselle, Julien, Yoshida, Hiroshige, Koshida, Shintaro, Takato, Naruhisa, Reiley, Dan J., Roberts, Mitsuko, Gunn, James E., Loomis, Craig, Lupton, Robert H., Caplar, Neven, Siddiqui, Hassan, Ferreira, Décio, Henrique dos Santos, Leandro, Oliveira, Ligia Souza, Cesar de Oliveira, Antonio, Marrara, Lucas Souza, Fabricius, Maximilian, and Murray, Graham J.
Published: 2022
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29. Searches for interstellar molecules of potential prebiotic importance

Author: Kuan, Yi-Jehng, Charnley, Steven B., Huang, Hui-Chun, Kisiel, Zbigniew, Ehrenfreund, Pascale, Tseng, Wei-Ling, and Yan, Chi-Hung
Published: 2004
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30. Data reduction pipeline for the METIS integral field spectrograph

Author: Ibsen, Jorge, Chiozzi, Gianluca, Baláž, Martin, Czoske, Oliver, Leschinski, Kieran, Buddelmeijer, Hugo, Otten, Gilles P. P. L., Karr, Jennifer, Yan, Chi-Hung, and Kausch, Wolfgang
Published: 2024
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31. Prime Focus Spectrograph (PFS) for Subaru Telescope: progressing final steps to science operation

Author: Bryant, Julia J., Motohara, Kentaro, Vernet, Joël R. D., Tamura, Naoyuki, Yabe, Kiyoto, Koshida, Shintaro, Moritani, Yuki, Tanaka, Masayuki, Ishigaki, Miho N., Ishizuka, Yuki, Kamata, Yukiko, Allaoui, Ali, Arai, Akira, Arnouts, Stéphane, Barette, Rudy, Barkhouser, Robert H., Bergeron, Eddie, Blanchard, Patrick, Caplar, Neven, Carle, Michael, Chabaud, Pierre-Yves, Chang, Yin-Chang, Chen, Hsin-Yo, Chou, Richard C. Y., Cohen, Judith G., Costa, Ricardo, Crauchet, Thibaut, de Almeida, Rodorigo P., de Oliveira, Antonio C., de Oliveira, Ligia S., Dohlen, Kjetil, dos Santos, Leandro H., Dobos, László, Ellis, Richard S., Ertel, Steve, Fabricius, Maximilian, Ferreira, Décio, Furusawa, Hisanori, Gee, Wilfred T., Garciá-Carpio, Javier, Gerasimov, Roman, Golebiowski, Mirek, Gray, Aidan, Gunn, James E., Hahn, ChangHoon, Hamano, Satoshi, Hammond, Randolph P., Harding, Albert, Hattori, Takashi, Hayashi, Kota, He, Wanqiu, Heckman, Timothy M., Hope, Stephen C., Hsu, Shu-Fu, Huang, Pin-Jie, Jaquet, Marc, Jeschke, Eric, Jespersen, Christian K., Jing, Yipeng, Kackley, Russell, Karr, Jennifer L., Kawanomoto, Satoshi, Kimura, Masahiko, Kirby, Evan N., Koike, Michitaro, Komatsu, Eiichiro, Koyama, Yusei, Le Brun, Vincent, Le Fur, Arnaud, Le Mignant, David, Lemson, Gerald, Lin, Yen-Ting, Ling, Hung-Hsu, Loomis, Craig P., Lupton, Robert H., Madec, Fabrice, Marchesini, Danilo, Marrara, Lucas S., Medvedev, Dmitry, Mineo, Sogo, Mitschang, Arik, Miyazaki, Satoshi, Morihana, Kumiko, Morishima, Takahiro, Murayama, Hitoshi, Murray, Graham J., Okamoto, Sakurako, Okita, Hirofumi, Onodera, Masato, Passegger, Vera M., Peebles, Joshua, Price, Paul A., Pyo, Tae-Soo, Ramos, Lucio, Reiley, Daniel J., Reinecke, Martin, Roberts, Mitsuko, Rosa, Josemar A., Rousselle, Julien P., Rubio, Kody H., Schubert, Kiaina, Seiffert, Michael D., Siegel, Jared, Smee, Stephen A., Sodré, Laerte, Strauss, Michael A., Sunayama, Tomomi, Surace, Christian, Takada, Masahiro, Takagi, Yuhei, Tanaka, Ichi, Tanaka, Yoko, Thakar, Aniruddha R., Vibert, Didier, Wang, Shiang-Yu, Wen, Chih-Yi, Werner, Suzanne, Wung, Matthew, Yan, Chi-Hung, Yasuda, Naoki, and Yoshida, Hiroshige
Published: 2024
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32. On-sky results with the fast guiding system on the SPIRou spectroplarimeter at CFHT

Author: Barrick, Greg, Donati, Jean-François, Baratchart, Sébastien, Moutou, Claire, Vermeulen, Tom, Ho, Kevin, Larrieu, Marie, Parès, Laurent, Dupieux, Michel, Wang, Shiang-Yu, Yan, Chi-Hung, Barrick, Gregory, Pares, Laurent, Institut de recherche en astrophysique et planétologie (IRAP), Institut national des sciences de l'Univers (INSU - CNRS)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Observatoire Midi-Pyrénées (OMP), Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS), Services communs OMP (UMS 831), Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), Laboratoire d'Astrophysique de Marseille (LAM), Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS), Department of electronic engineering, Chang Gung University, Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), and Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS)
Subjects: Physics, [SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph], Aperture, media_common.quotation_subject, Astronomy, H band, Velocimetry, 01 natural sciences, Exoplanet, law.invention, [SDU.ASTR.IM]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Instrumentation and Methods for Astrophysic [astro-ph.IM], 010309 optics, Radial velocity, Telescope, Sky, law, Planet, [SDU]Sciences of the Universe [physics], 0103 physical sciences, 010303 astronomy & astrophysics, media_common
Abstract: International audience; SPIRou (SpectroPolarimètre Infra-Rouge in French), is a near-infrared, fiber-fed spectropolarimeter at the CanadaFrance-Hawaii Telescope (CFHT) which gives full spectral coverage from 0.98 to 2.35 μm with a resolving power of 70,000. The main science drivers for SPIRou are (i) detecting and characterizing exoplanets around nearby M dwarfs through high-precision (1 m/s) velocimetry, and (ii) investigating the impact of magnetic fields on star/planet formation through spectropolarimetry. One of the requirements for achieving this challenging radial velocity (RV) precision is ensuring that the observed star does not move with respect to the instrument entrance aperture by more than 0.05 arcseconds RMS over the course of the observation. This is complicated by the fact that the guiding uses light from the science target so that only about 13% of the light (10% from the wings and 3% from the core) is available in seeing conditions of 0.65 arc-seconds in H band. To achieve this level of guiding accuracy, a fast guiding system has been implemented in the injection module of the instrument. This paper describes the system, its performance in tests on the sky with the CFHT since the delivery of SPIRou in January 2018, and gives comparisons to laboratory measurements and simulations.
Published: 2018

33. Near-infrared Survey and Photometric Redshifts in the Extended GOODS-North Field

Author: Hsu, Li-Ting, primary, Lin, Lihwai, additional, Dickinson, Mark, additional, Yan, Haojing, additional, Bau-Ching, Hsieh, additional, Wang, Wei-Hao, additional, Lee, Chien-Hsiu, additional, Yan, Chi-Hung, additional, Scott, Douglas, additional, Willner, S. P., additional, Ouchi, Masami, additional, Ashby, Matthew L. N., additional, Chen, Yi-Wen, additional, Daddi, Emanuele, additional, Elbaz, David, additional, Fazio, Giovanni G., additional, Foucaud, Sebastien, additional, Huang, Jiasheng, additional, Koo, David C., additional, Morrison, Glenn, additional, Owen, Frazer, additional, Pannella, Maurilio, additional, Pope, Alexendra, additional, Simard, Luc, additional, and Wang, Shiang-Yu, additional
Published: 2019
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34. 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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35. Metrology camera system of prime focus spectrograph for Subaru telescope

Author: Reiley, Dan J., primary, Wang, Shiang-Yu, primary, Chou, Cheuh-Yi, primary, Huang, Pin-Jie, primary, Chang, Yin-Chang, primary, Chen, Hsin-Yo, primary, Hu, Yen-Sang, primary, Tamura, Naoyuki, primary, Shimono, Atsushi, primary, Moritani, Yuki, primary, Takato, Naruhisa, primary, Gunn, James E., primary, Ling, Hung-Hsu, primary, Hsu, Shu-Fu, primary, Karr, Jennifer, primary, and Yan, Chi-Hung, primary
Published: 2018
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36. Software development of fiber positioning sequencer for prime focus spectrograph of Subaru telescope

Author: Yan, Chi-Hung, primary, Wang, Shiang-Yu, primary, Wen, Chih-Yi, primary, Karr, Jennifer, primary, Aghazarian, Hrand, primary, Gross, Johannes, primary, Shimono, Atsushi, primary, Tamura, Naoyuki, primary, Loomis, Craig P., primary, and Lupton, Robert H., primary
Published: 2018
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37. On-sky results with the fast guiding system on the SPIRou spectroplarimeter at CFHT

Author: Barrick, Gregory A., primary, Donati, Jean-Francois, primary, Baratchart, Sébastien, primary, Moutou, Claire, primary, Vermeulen, Tom, primary, Larrieu, Marie, primary, Pares, Laurent, primary, Dupieux, Michel, primary, Wang, Shiang-Yu, primary, Yan, Chi-Hung, primary, and Ho, Kevin, primary
Published: 2018
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38. The current status of prime focus instrument of Subaru prime focus spectrograph

Author: Evans, Christopher J., Simard, Luc, Takami, Hideki, Wang, Shiang-Yu, Schwochert, Mark A., Huang, Pin-Jie, Chen, Hsin-Yo, Kimura, Masahiko, Chou, Richard C. Y., Chang, Yin-Chang, Hu, Yen-Sang, Ling, Hung-Hsu, Morantz, Chaz N., Reiley, Dan J., Mao, Peter, Braun, David F., Wen, Chih-Yi, Yan, Chi-Hung, Karr, Jennifer, Gunn, James E., Murray, Graham, Tamura, Naoyuki, Takato, Naruhisa, Shimono, Atsushi, Ferreira, Decio, dos Santos, Leandro Henrique, Souza Oliveira, Ligia, de Oliveira, Antonio Cesar, Souza Marrara, Lucas, Evans, Christopher J., Simard, Luc, Takami, Hideki, Wang, Shiang-Yu, Schwochert, Mark A., Huang, Pin-Jie, Chen, Hsin-Yo, Kimura, Masahiko, Chou, Richard C. Y., Chang, Yin-Chang, Hu, Yen-Sang, Ling, Hung-Hsu, Morantz, Chaz N., Reiley, Dan J., Mao, Peter, Braun, David F., Wen, Chih-Yi, Yan, Chi-Hung, Karr, Jennifer, Gunn, James E., Murray, Graham, Tamura, Naoyuki, Takato, Naruhisa, Shimono, Atsushi, Ferreira, Decio, dos Santos, Leandro Henrique, Souza Oliveira, Ligia, de Oliveira, Antonio Cesar, and Souza Marrara, Lucas
Abstract: The Prime Focus Spectrograph (PFS) is a new optical/near-infrared multi-fiber spectrograph design for the prime focus of the 8.2m Subaru telescope. PFS will cover 1.3 degree diameter field with 2394 fibers to complement the imaging capability of Hyper SuprimeCam (HSC). The prime focus unit of PFS called Prime Focus Instrument (PFI) provides the interface with the top structure of Subaru telescope and also accommodates the optical bench in which Cobra fiber positioners are located. In addition, the acquisition and guiding cameras (AGCs), the optical fiber positioner system, the cable wrapper, the fiducial fibers, illuminator, and viewer, the field element, and the telemetry system are located inside the PFI. The mechanical structure of the PFI was designed with special care such that its deflections sufficiently match those of the HSC’s Wide Field Corrector (WFC) so the fibers will stay on targets over the course of the observations within the required accuracy. In this report, the latest status of PFI development will be given including the performance of PFI components, the setup and performance of the integration and testing equipment.
Published: 2016

39. 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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40. The current status of prime focus instrument of Subaru prime focus spectrograph

Author: Wang, Shiang-Yu, additional, Schwochert, Mark A., additional, Huang, Pin-Jie, additional, Chen, Hsin-Yo, additional, Kimura, Masahiko, additional, Chou, Richard C. Y., additional, Chang, Yin-Chang, additional, Hu, Yen-Sang, additional, Ling, Hung-Hsu, additional, Morantz, Chaz N., additional, Reiley, Dan J., additional, Mao, Peter, additional, Braun, David F., additional, Wen, Chih-Yi, additional, Yan, Chi-Hung, additional, Karr, Jennifer, additional, Gunn, James E., additional, Murray, Graham, additional, Tamura, Naoyuki, additional, Takato, Naruhisa, additional, Shimono, Atsushi, additional, Ferreira, Decio, additional, dos Santos, Leandro Henrique, additional, Souza Oliveira, Ligia, additional, de Oliveira, Antonio Cesar, additional, and Souza Marrara, Lucas, additional
Published: 2016
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41. z ~ 4 Hα Emitters in the Great Observatories Origins Deep Survey: Tracing the Dominant Mode for Growth of Galaxies

Author: Shim, Hyunjin, Chary, Ranga-Ram, Dickinson, Mark, Lin, Lihwai, Spinrad, Hyron, Stern, Daniel, and Yan, Chi-Hung
Subjects: Astrophysics::Solar and Stellar Astrophysics, Astrophysics::Earth and Planetary Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, Astrophysics::Galaxy Astrophysics
Abstract: We present evidence for strong Hα emission in galaxies with spectroscopic redshifts in the range of 3.8 < z < 5.0 over the Great Observatories Origins Deep Survey fields. Among 74 galaxies detected in the Spitzer IRAC 3.6 and 4.5 μm bands, more than 70% of the galaxies show clear excess at 3.6 μm compared to the expected flux density from stellar continuum only. We provide evidence that this 3.6 μm excess is due to Hα emission redshifted into the 3.6 μm band, and classify these 3.6 μm excess galaxies to be Hα emitter (HAE) candidates. The selection of HAE candidates using an excess in broadband filters is sensitive to objects whose rest-frame Hα equivalent width (EW) is larger than 350 Å. The Hα inferred star formation rates (SFRs) of the HAEs range between 20 and 500 M_☉ yr^(–1) and are a factor of ~6 larger than SFRs inferred from the UV continuum. The ratio between the Hα luminosity and UV luminosity of HAEs is also on average larger than that of local starbursts. Possible reasons for such strong Hα emission in these galaxies include different dust extinction properties, young stellar population ages, extended star formation histories, low metallicity, and a top-heavy stellar initial mass function. Although the correlation between UV slope β and L_(Hα)/L_(UV) raises the possibility that HAEs prefer a dust extinction curve which is steeper in the UV, the most dominant factor that results in strong Hα emission appears to be star formation history. The Hα EWs of HAEs are large despite their relatively old stellar population ages constrained by spectral energy distribution fitting, suggesting that at least 60% of HAEs produce stars at a constant rate. Under the assumption that the gas supply is sustained, HAEs are able to produce ≳ 50% of the stellar mass density that is encompassed in massive (M_* > 10^(11) M_☉) galaxies at z ~ 3. This "strong Hα phase" of star formation plays a dominant role in galaxy growth at z ~ 4, and they are likely progenitors of massive red galaxies at lower redshifts.
Published: 2011

42. Prime Focus Spectrograph for the Subaru telescope: massively multiplexed optical and near-infrared fiber spectrograph

Author: Sugai, Hajime, primary, Tamura, Naoyuki, additional, Karoji, Hiroshi, additional, Shimono, Atsushi, additional, Takato, Naruhisa, additional, Kimura, Masahiko, additional, Ohyama, Youichi, additional, Ueda, Akitoshi, additional, Aghazarian, Hrand, additional, de Arruda, Marcio Vital, additional, Barkhouser, Robert H., additional, Bennett, Charles L., additional, Bickerton, Steve, additional, Bozier, Alexandre, additional, Braun, David F., additional, Bui, Khanh, additional, Capocasale, Christopher M., additional, Carr, Michael A., additional, Castilho, Bruno, additional, Chang, Yin-Chang, additional, Chen, Hsin-Yo, additional, Chou, Richard C. Y., additional, Dawson, Olivia R., additional, Dekany, Richard G., additional, Ek, Eric M., additional, Ellis, Richard S., additional, English, Robin J., additional, Ferrand, Didier, additional, Ferreira, Décio, additional, Fisher, Charles D., additional, Golebiowski, Mirek, additional, Gunn, James E., additional, Hart, Murdock, additional, Heckman, Timothy M., additional, Ho, Paul T. P., additional, Hope, Stephen, additional, Hovland, Larry E., additional, Hsu, Shu-Fu, additional, Hu, Yen-Shan, additional, Huang, Pin Jie, additional, Jaquet, Marc, additional, Karr, Jennifer E., additional, Kempenaar, Jason G., additional, King, Matthew E., additional, Fèvre, Olivier Le, additional, Mignant, David Le, additional, Ling, Hung-Hsu, additional, Loomis, Craig, additional, Lupton, Robert H., additional, Madec, Fabrice, additional, Mao, Peter, additional, Marrara, Lucas Souza, additional, Ménard, Brice, additional, Morantz, Chaz, additional, Murayama, Hitoshi, additional, Murray, Graham J., additional, de Oliveira, Antonio Cesar, additional, de Oliveira, Claudia Mendes, additional, de Oliveira, Ligia Souza, additional, Orndorff, Joe D., additional, de Paiva Vilaça, Rodrigo, additional, Partos, Eamon J., additional, Pascal, Sandrine, additional, Pegot-Ogier, Thomas, additional, Reiley, Daniel J., additional, Riddle, Reed, additional, Santos, Leandro, additional, dos Santos, Jesulino Bispo, additional, Schwochert, Mark A., additional, Seiffert, Michael D., additional, Smee, Stephen A., additional, Smith, Roger M., additional, Steinkraus, Ronald E., additional, Sodré, Laerte, additional, Spergel, David N., additional, Surace, Christian, additional, Tresse, Laurence, additional, Vidal, Clément, additional, Vives, Sebastien, additional, Wang, Shiang-Yu, additional, Wen, Chih-Yi, additional, Wu, Amy C., additional, Wyse, Rosie, additional, and Yan, Chi-Hung, additional
Published: 2015
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43. PROPERTIES OF THE MOLECULAR CLUMP AND THE ASSOCIATED ULTRACOMPACT H II REGION IN THE GAS SHELL OF THE EXPANDING H II REGION SH 2-104

Author: Minh, Young Chol, primary, Kim, Kee-Tae, additional, Yan, Chi-Hung, additional, Park, Yong-Sun, additional, Lee, Seokho, additional, Lal, Dharam Vil, additional, Hasegawa, Tatsuhiko, additional, Zhang, X.Z., additional, and Kuan, Yi-Jeng, additional
Published: 2014
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44. Metrology camera system of prime focus spectrograph for Subaru telescope

Author: Wang, Shiang-Yu, additional, Chou, Chueh-Yi, additional, Chang, Yin-Chang, additional, Huang, Pin-Jie, additional, Hu, Yen-Sang, additional, Chen, Hsin-Yo, additional, Tamura, Naoyuki, additional, Takato, Naruhisa, additional, Ling, Hung-Hsu, additional, Gunn, James E., additional, Karr, Jennifer, additional, Yan, Chi-Hung, additional, Mao, Peter, additional, Ohyama, Youichi, additional, Karoji, Hiroshi, additional, Sugai, Hajime, additional, and Shimono, Atsushi, additional
Published: 2014
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45. Progress with the Prime Focus Spectrograph for the Subaru Telescope: a massively multiplexed optical and near-infrared fiber spectrograph

Author: Sugai, Hajime, additional, Tamura, Naoyuki, additional, Karoji, Hiroshi, additional, Shimono, Atsushi, additional, Takato, Naruhisa, additional, Kimura, Masahiko, additional, Ohyama, Youichi, additional, Ueda, Akitoshi, additional, Aghazarian, Hrand, additional, de Arruda, Marcio V., additional, Barkhouser, Robert H., additional, Bennett, Charles L., additional, Bickerton, Steve, additional, Bozier, Alexandre, additional, Braun, David F., additional, Bui, Khanh, additional, Capocasale, Christopher M., additional, Carr, Michael A., additional, Castilho, Bruno, additional, Chang, Yin-Chang, additional, Chen, Hsin-Yo, additional, Chou, Richard C. Y., additional, Dawson, Olivia R., additional, Dekany, Richard G., additional, Ek, Eric M., additional, Ellis, Richard S., additional, English, Robin J., additional, Ferrand, Didier, additional, Ferreira, Décio, additional, Fisher, Charles D., additional, Golebiowski, Mirek, additional, Gunn, James E., additional, Hart, Murdock, additional, Heckman, Timothy M., additional, Ho, Paul T. P., additional, Hope, Stephen, additional, Hovland, Larry E., additional, Hsu, Shu-Fu, additional, Hu, Yen-Sang, additional, Huang, Pin Jie, additional, Jaquet, Marc, additional, Karr, Jennifer E., additional, Kempenaar, Jason G., additional, King, Matthew E., additional, Le Fèvre, Olivier, additional, Le Mignant, David, additional, Ling, Hung-Hsu, additional, Loomis, Craig, additional, Lupton, Robert H., additional, Madec, Fabrice, additional, Mao, Peter, additional, Marrara, Lucas S., additional, Ménard, Brice, additional, Morantz, Chaz, additional, Murayama, Hitoshi, additional, Murray, Graham J., additional, de Oliveira, Antonio Cesar, additional, de Oliveira, Claudia M., additional, de Oliveira, Ligia S., additional, Orndorff, Joe D., additional, de Paiva Vilaça, Rodrigo, additional, Partos, Eamon J., additional, Pascal, Sandrine, additional, Pegot-Ogier, Thomas, additional, Reiley, Daniel J., additional, Riddle, Reed, additional, Santos, Leandro, additional, dos Santos, Jesulino B., additional, Schwochert, Mark A., additional, Seiffert, Michael D., additional, Smee, Stephen A., additional, Smith, Roger M., additional, Steinkraus, Ronald E., additional, Sodré, Laerte, additional, Spergel, David N., additional, Surace, Christian, additional, Tresse, Laurence, additional, Vidal, Clément, additional, Vives, Sebastien, additional, Wang, Shiang-Yu, additional, Wen, Chih-Yi, additional, Wu, Amy C., additional, Wyse, Rosie, additional, and Yan, Chi-Hung, additional
Published: 2014
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46. Metrology camera system of prime focus spectrograph for Subaru telescope

Author: Evans, Christopher J., Simard, Luc, Takami, Hideki, Wang, Shiang-Yu, Chou, Richard C. Y., Huang, Pin-Jie, Chang, Yin-Chang, Ling, Hung-Hsu, Yan, Chi-Hung, Karr, Jennifer, Hsu, Shu-Fu, Chen, Hsin-Yo, Hu, Yen-Shan, Gunn, James E., Reiley, Dan J., Tamura, Naoyuki, Takato, Naruhisa, Moritani, Yuki, and Shimono, Atsushi
Published: 2018
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47. 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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48. TIME MONITORING OF RADIO JETS AND MAGNETOSPHERES IN THE NEARBY YOUNG STELLAR CLUSTER R CORONAE AUSTRALIS

Author: Liu, Hauyu Baobab, primary, Galván-Madrid, Roberto, additional, Forbrich, Jan, additional, Rodríguez, Luis F., additional, Takami, Michihiro, additional, Costigan, Gráinne, additional, Manara, Carlo Felice, additional, Yan, Chi-Hung, additional, Karr, Jennifer, additional, Chou, Mei-Yin, additional, Ho, Paul T.-P., additional, and Zhang, Qizhou, additional
Published: 2013
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49. Prime focus spectrograph (PFS) for the Subaru Telescope: the prime focus instrument.

Author: Wang, Shiang-Yu, Kimura, Masahiko, Yan, Chi-Hung, Chang, Yin-Chang, Hsu, Shu-Fu, Karr, Jennifer, Chen, Hsin-Yo, Huang, Pin-Jie, Wen, Chih-Yi, Chou, Richard C. Y., Ling, Hung-Hsu, Tamura, Naoyuki, Moritani, Yuki, Rousselle, Julien, Yoshida, Hiroshige, Koshida, Shintaro, Takato, Naruhisa, Reiley, Dan J., Roberts, Mitsuko, and Gunn, James E.
Published: 2022
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50. SPIRou @ CFHT: design of the instrument control system

Author: Barrick, Gregory A., primary, Vermeulen, Tom, additional, Baratchart, Sébastien, additional, Reshetov, Vladimir A., additional, Wang, Shiang-Yu, additional, Dolon, François, additional, Hernandez, Olivier, additional, Pepe, Francesco, additional, Bouchy, François, additional, Dunn, Jennifer, additional, Dupieux, Michel, additional, Gallou, Gérard, additional, Larrieu, Marie, additional, Fonteneau, Alexandre, additional, Moreau, François, additional, Wildi, François, additional, Parès, Laurent P., additional, Thomas, James N., additional, Yan, Chi-Hung, additional, Doyon, René, additional, Donati, Jean-François, additional, Vallée, Philippe, additional, Artigau, Étienne, additional, Delfosse, Xavier, additional, Rabou, Patrick, additional, Thibault, Simon, additional, Kouach, Driss, additional, and Loop, David, additional
Published: 2012
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