Search

Your search keyword '"Tanaka, Satoshi"' showing total 945 results
Start Over Author "Tanaka, Satoshi" Publication Year Range Last 3 years
945 results on '"Tanaka, Satoshi"'

1. $B_{(s)}\to D_{(s)}^{(*)}M$ decays in the presence of final-state interaction

Author

Panuluh, Albertus Hariwangsa, Tanaka, Satoshi, and Umeeda, Hiroyuki

Subjects
High Energy Physics - Phenomenology, High Energy Physics - Experiment
Abstract

In light of the recent data for $\bar{B}_{(s)}\to D^{(*)}_{(s)}P$ and $\bar{B}_{(s)}\to D_{(s)}V$ decays, we perform a model-independent phenomenological analysis in the presence of quasi-elastic rescattering. With the Wilson coefficients including contributions beyond the standard model, lifetimes of $B$ meson as well as the $B^0_d-\bar{B}^0_d$ mixing are investigated for clarifying correlations among the observables. We show that parameter regions for quasi-elastic rescattering, the size of color-suppressed tree amplitudes and new physics are constrained due to the lifetime data. As a consequence, it is revealed that this scenario can be testable by the future LHCb measurement of width difference in $B^0_d-\bar{B}^0_d$ mixing and semi-leptonic CP asymmetry., Comment: 28 pages, 3 figures, 2 tables; v2: reference added, part of numerical results updated

Published
2024

2. A Parameter-Masked Mock Data Challenge for Beyond-Two-Point Galaxy Clustering Statistics

Author

Collaboration, Beyond-2pt, Krause, Elisabeth, Kobayashi, Yosuke, Salcedo, Andrés N., Ivanov, Mikhail M., Abel, Tom, Akitsu, Kazuyuki, Angulo, Raul E., Cabass, Giovanni, Contarini, Sofia, Cuesta-Lazaro, Carolina, Hahn, ChangHoon, Hamaus, Nico, Jeong, Donghui, Modi, Chirag, Nguyen, Nhat-Minh, Nishimichi, Takahiro, Paillas, Enrique, Ibañez, Marcos Pellejero, Philcox, Oliver H. E., Pisani, Alice, Schmidt, Fabian, Tanaka, Satoshi, Verza, Giovanni, Yuan, Sihan, and Zennaro, Matteo

Subjects
Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

The last few years have seen the emergence of a wide array of novel techniques for analyzing high-precision data from upcoming galaxy surveys, which aim to extend the statistical analysis of galaxy clustering data beyond the linear regime and the canonical two-point (2pt) statistics. We test and benchmark some of these new techniques in a community data challenge "Beyond-2pt", initiated during the Aspen 2022 Summer Program "Large-Scale Structure Cosmology beyond 2-Point Statistics," whose first round of results we present here. The challenge dataset consists of high-precision mock galaxy catalogs for clustering in real space, redshift space, and on a light cone. Participants in the challenge have developed end-to-end pipelines to analyze mock catalogs and extract unknown ("masked") cosmological parameters of the underlying $\Lambda$CDM models with their methods. The methods represented are density-split clustering, nearest neighbor statistics, BACCO power spectrum emulator, void statistics, LEFTfield field-level inference using effective field theory (EFT), and joint power spectrum and bispectrum analyses using both EFT and simulation-based inference. In this work, we review the results of the challenge, focusing on problems solved, lessons learned, and future research needed to perfect the emerging beyond-2pt approaches. The unbiased parameter recovery demonstrated in this challenge by multiple statistics and the associated modeling and inference frameworks supports the credibility of cosmology constraints from these methods. The challenge data set is publicly available and we welcome future submissions from methods that are not yet represented., Comment: New submissions welcome! Challenge data available at https://github.com/ANSalcedo/Beyond2ptMock

Published
2024

3. Microscale Hydrogen, Carbon, and Nitrogen Isotopic Diversity of Organic Matter in Asteroid Ryugu

Author

Nittler, Larry R, Barosch, Jens, Burgess, Katherine, Stroud, Rhonda M, Wang, Jianhua, Yabuta, Hikaru, Enokido, Yuma, Matsumoto, Megumi, Nakamura, Tomoki, Kebukawa, Yoko, Yamashita, Shohei, Takahashi, Yoshio, Bejach, Laure, Bonal, Lydie, Cody, George D, Dartois, Emmanuel, Dazzi, Alexandre, De Gregorio, Bradley, Deniset-Besseau, Ariane, Duprat, Jean, Engrand, Cécile, Hashiguchi, Minako, Kilcoyne, A. L. David, Komatsu, Mutsumi, Martins, Zita, Mathurin, Jérémie, Montagnac, Gilles, Mostefaoui, Smail, Okumura, Taiga, Quirico, Eric, Remusat, Laurent, Sandford, Scott, Shigenaka, Miho, Suga, Hiroki, Takeichi, Yasuo, Tamenori, Yusuke, Verdier-Paoletti, Maximilien, Wakabayashi, Daisuke, Abe, Masanao, Kamide, Kanami, Miyazaki, Akiko, Nakato, Aiko, Nakazawa, Satoru, Nishimura, Masahiro, Okada, Tatsuaki, Saiki, Takanao, Tanaka, Satoshi, Terui, Fuyuto, Usui, Tomohiro, Yada, Toru, Yogata, Kasumi, Yoshikawa, Makoto, Yurimoto, Hisayoshi, Noguchi, Takaaki, Okazaki, Ryuji, Naraoka, Hiroshi, Sakamoto, Kanako, Tachibana, Shogo, Watanabe, Sei-ichiro, and Tsuda, Yuichi

Subjects
Astrophysics - Earth and Planetary Astrophysics
Abstract

We report the H, C, and N isotopic compositions of microscale (0.2 to 2$\mu$m) organic matter in samples of asteroid Ryugu and the Orgueil CI carbonaceous chondrite. Three regolith particles of asteroid Ryugu, returned by the Hayabusa2 spacecraft, and several fragments of Orgueil were analyzed by NanoSIMS isotopic imaging. The isotopic distributions of the Ryugu samples from two different collection spots are closely similar to each other and to the Orgueil samples, strengthening the proposed Ryugu-CI chondrite connection. Most individual sub-$\mu$m organic grains have isotopic compositions within error of bulk values, but 2-8% of them are outliers exhibiting large isotopic enrichments or depletions in D, $^{15}$N, and/or $^{13}$C. The H, C and N isotopic compositions of the outliers are not correlated with each other: while some C-rich grains are both D- and $^{15}$N-enriched, many are enriched or depleted in one or the other system. This most likely points to a diversity in isotopic fractionation pathways and thus diversity in the local formation environments for the individual outlier grains. The observation of a relatively small population of isotopic outlier grains can be explained either by escape from nebular and/or parent body homogenization of carbonaceous precursor material or addition of later isotopic outlier grains. The strong chemical similarity of isotopically typical and isotopically outlying grains, as reflected by synchrotron x-ray absorption spectra, suggests a genetic connection and thus favors the former, homogenization scenario. However, the fact that even the least altered meteorites show the same pattern of a small population of outliers on top of a larger population of homogenized grains indicates that some or most of the homogenization occurred prior to accretion of the macromolecular organic grains into asteroidal parent bodies., Comment: Accepted for publication in Earth and Planetary Science Letters. 8 figures (plus 3 supplementary figs), two tables

Published
2024

4. Exploring the baryonic effect signature in the Hyper Suprime-Cam Year 3 cosmic shear two-point correlations on small scales: the $S_8$ tension remains present

Author

Terasawa, Ryo, Li, Xiangchong, Takada, Masahiro, Nishimichi, Takahiro, Tanaka, Satoshi, Sugiyama, Sunao, Kurita, Toshiki, Zhang, Tianqing, Shirasaki, Masato, Takahashi, Ryuichi, Miyatake, Hironao, More, Surhud, and Nishizawa, Atsushi J.

Subjects
Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

The baryonic feedback effect is considered as a possible solution to the so-called $S_8$ tension indicated in cosmic shear cosmology. The baryonic effect is more significant on smaller scales, and affects the cosmic shear two-point correlation functions (2PCFs) with different scale- and redshift-dependencies from those of the cosmological parameters. In this paper, we use the Hyper Suprime-Cam Year 3 (HSC-Y3) data to measure the cosmic shear 2PCFs ($\xi_{\pm}$) down to 0.28 arcminutes, taking full advantage of the high number density of source galaxies in the deep HSC data, to explore a possible signature of the baryonic effect. While the published HSC analysis used the cosmic shear 2PCFs on angular scales, which are sensitive to the matter power spectrum at $k\lesssim 1~h{\rm Mpc}^{-1}$, the smaller scale HSC cosmic shear signal allows us to probe the signature of matter power spectrum up to $k\simeq 20~h{\rm Mpc}^{-1}$. Using the accurate emulator of the nonlinear matter power spectrum, DarkEmulator2, we show that the dark matter-only model can provide an acceptable fit to the HSC-Y3 2PCFs down to the smallest scales. In other words, we do not find any clear signature of the baryonic effects or do not find a systematic shift in the $S_8$ value with the inclusion of the smaller-scale information as would be expected if the baryonic effect is significant. Alternatively, we use a flexible 6-parameter model of the baryonic effects, which can lead to both enhancement and suppression in the matter power spectrum compared to the dark matter-only model, to perform the parameter inference of the HSC-Y3 2PCFs. We find that the small-scale HSC data allow only a fractional suppression of up to 5 percent in the matter power spectrum at $k\sim 1~h{\rm Mpc}^{-1}$, which is not sufficient to reconcile the $S_8$ tension., Comment: 30 pages, 16 figures

Published
2024

7. Model-Checking in the Loop Model-Based Testing for Automotive Operating Systems

Author

Aoki, Toshiaki, Hata, Aritoshi, Kanamori, Kazusato, Tanaka, Satoshi, Kawamoto, Yuta, Tanase, Yasuhiro, Imai, Masumi, Shigemitsu, Fumiya, Gondo, Masaki, and Kishi, Tomoji

Subjects
Computer Science - Software Engineering
Abstract

While vehicles have primarily been controlled through mechanical means in years past, an increasing number of embedded control systems are being installed and used, keeping pace with advances in electronic control technology and performance. Automotive systems consist of multiple components developed by a range of vendors. To accelerate developments in embedded control systems, industrial standards such as AUTOSAR are being defined for automotive systems, including the design of operating system and middleware technologies. Crucial to ensuring the safety of automotive systems, the operating system is foundational software on which many automotive applications are executed. In this paper, we propose an integrated model-based method for verifying automotive operating systems; our method is called Model-Checking in the Loop Model-Based Testing (MCIL-MBT). In MCIL-MBT, we create a model that formalizes specifications of automotive operating systems and verifies the specifications via model-checking. Next, we conduct model-based testing with the verified model to ensure that a specific operating system implementation conforms to the model. These verification and testing stages are iterated over until no flaws are detected. Our method has already been introduced to an automotive system supplier and an operating system vendor. Through our approach, we successfully identified flaws that were not detected by conventional review and testing methods.

Published
2023

10. Water circulation in Ryugu asteroid affected the distribution of nucleosynthetic isotope anomalies in returned sample.

Author

Yokoyama, Tetsuya, Wadhwa, Meenakshi, Iizuka, Tsuyoshi, Rai, Vinai, Gautam, Ikshu, Hibiya, Yuki, Masuda, Yuki, Haba, Makiko, Fukai, Ryota, Hines, Rebekah, Phelan, Nicole, Abe, Yoshinari, Aléon, Jérôme, Alexander, Conel, Amari, Sachiko, Amelin, Yuri, Bajo, Ken-Ichi, Bizzarro, Martin, Bouvier, Audrey, Carlson, Richard, Chaussidon, Marc, Choi, Byeon-Gak, Dauphas, Nicolas, Davis, Andrew, Di Rocco, Tommaso, Fujiya, Wataru, Hidaka, Hiroshi, Homma, Hisashi, Hoppe, Peter, Huss, Gary, Ichida, Kiyohiro, Ireland, Trevor, Ishikawa, Akira, Itoh, Shoichi, Kawasaki, Noriyuki, Kita, Noriko, Kitajima, Koki, Kleine, Thorsten, Komatani, Shintaro, Krot, Alexander, Liu, Ming-Chang, McKeegan, Kevin, Morita, Mayu, Motomura, Kazuko, Moynier, Frédéric, Nakai, Izumi, Nagashima, Kazuhide, Nguyen, Ann, Nittler, Larry, Onose, Morihiko, Pack, Andreas, Park, Changkun, Piani, Laurette, Qin, Liping, Russell, Sara, Sakamoto, Naoya, Schönbächler, Maria, Tafla, Lauren, Tang, Haolan, Terada, Kentaro, Terada, Yasuko, Usui, Tomohiro, Wada, Sohei, Walker, Richard, Yamashita, Katsuyuki, Yoneda, Shigekazu, Young, Edward, Yui, Hiroharu, Zhang, Ai-Cheng, Nakamura, Tomoki, Naraoka, Hiroshi, Noguchi, Takaaki, Okazaki, Ryuji, Sakamoto, Kanako, Yabuta, Hikaru, Abe, Masanao, Miyazaki, Akiko, Nakato, Aiko, Nishimura, Masahiro, Okada, Tatsuaki, Yada, Toru, Yogata, Kasumi, Nakazawa, Satoru, Saiki, Takanao, Tanaka, Satoshi, Terui, Fuyuto, Tsuda, Yuichi, Watanabe, Sei-Ichiro, Yoshikawa, Makoto, Tachibana, Shogo, Yurimoto, Hisayoshi, and Yin, Qing-Zhu

Abstract

Studies of material returned from Cb asteroid Ryugu have revealed considerable mineralogical and chemical heterogeneity, stemming primarily from brecciation and aqueous alteration. Isotopic anomalies could have also been affected by delivery of exogenous clasts and aqueous mobilization of soluble elements. Here, we show that isotopic anomalies for mildly soluble Cr are highly variable in Ryugu and CI chondrites, whereas those of Ti are relatively uniform. This variation in Cr isotope ratios is most likely due to physicochemical fractionation between 54Cr-rich presolar nanoparticles and Cr-bearing secondary minerals at the millimeter-scale in the bulk samples, likely due to extensive aqueous alteration in their parent bodies that occurred [Formula: see text] after Solar System birth. In contrast, Ti isotopes were marginally affected by this process. Our results show that isotopic heterogeneities in asteroids are not all nebular or accretionary in nature but can also reflect element redistribution by water.

Published
2023

11. Abundant presolar grains and primordial organics preserved in carbon-rich exogenous clasts in asteroid Ryugu.

Author

Nguyen, Ann, Mane, Prajkta, Keller, Lindsay, Piani, Laurette, Abe, Yoshinari, Aléon, Jérôme, Alexander, Conel, Amari, Sachiko, Amelin, Yuri, Bajo, Ken-Ichi, Bizzarro, Martin, Bouvier, Audrey, Carlson, Richard, Chaussidon, Marc, Choi, Byeon-Gak, Dauphas, Nicolas, Davis, Andrew, Di Rocco, Tommaso, Fujiya, Wataru, Fukai, Ryota, Gautam, Ikshu, Haba, Makiko, Hibiya, Yuki, Hidaka, Hiroshi, Homma, Hisashi, Hoppe, Peter, Huss, Gary, Ichida, Kiyohiro, Iizuka, Tsuyoshi, Ireland, Trevor, Ishikawa, Akira, Itoh, Shoichi, Kawasaki, Noriyuki, Kita, Noriko, Kitajima, Kouki, Kleine, Thorsten, Komatani, Shintaro, Krot, Alexander, Liu, Ming-Chang, Masuda, Yuki, McKeegan, Kevin, Morita, Mayu, Motomura, Kazuko, Moynier, Frédéric, Nakai, Izumi, Nagashima, Kazuhide, Nesvorný, David, Nittler, Larry, Onose, Morihiko, Pack, Andreas, Park, Changkun, Qin, Liping, Russell, Sara, Sakamoto, Naoya, Schönbächler, Maria, Tafla, Lauren, Tang, Haolan, Terada, Kentaro, Terada, Yasuko, Usui, Tomohiro, Wada, Sohei, Wadhwa, Meenakshi, Walker, Richard, Yamashita, Katsuyuki, Yokoyama, Tetsuya, Yoneda, Shigekazu, Young, Edward, Yui, Hiroharu, Zhang, Ai-Cheng, Nakamura, Tomoki, Naraoka, Hiroshi, Noguchi, Takaaki, Okazaki, Ryuji, Sakamoto, Kanako, Yabuta, Hikaru, Abe, Masanao, Miyazaki, Akiko, Nakato, Aiko, Nishimura, Masahiro, Okada, Tatsuaki, Yada, Toru, Yogata, Kasumi, Nakazawa, Satoru, Saiki, Takanao, Tanaka, Satoshi, Terui, Fuyuto, Tsuda, Yuichi, Watanabe, Sei-Ichiro, Yoshikawa, Makoto, Tachibana, Shogo, Yurimoto, Hisayoshi, and Yin, Qing-Zhu

Subjects
Carbon, Solar System, Meteoroids, Silicates
Abstract

Preliminary analyses of asteroid Ryugu samples show kinship to aqueously altered CI (Ivuna-type) chondrites, suggesting similar origins. We report identification of C-rich, particularly primitive clasts in Ryugu samples that contain preserved presolar silicate grains and exceptional abundances of presolar SiC and isotopically anomalous organic matter. The high presolar silicate abundance (104 ppm) indicates that the clast escaped extensive alteration. The 5 to 10 times higher abundances of presolar SiC (~235 ppm), N-rich organic matter, organics with N isotopic anomalies (1.2%), and organics with C isotopic anomalies (0.2%) in the primitive clasts compared to bulk Ryugu suggest that the clasts formed in a unique part of the protoplanetary disk enriched in presolar materials. These clasts likely represent previously unsampled outer solar system material that accreted onto Ryugu after aqueous alteration ceased, consistent with Ryugus rubble pile origin.

Published
2023

13. Incidence of sodium–glucose cotransporter-2 inhibitor-associated perioperative ketoacidosis in surgical patients: a prospective cohort study

Author

Seki, Hiroyuki, Kuratani, Norifumi, Shiga, Toshiya, Iwasaki, Yudai, Karita, Kanae, Yasuda, Kazuki, Yamamoto, Natsuko, Nakanishi, Yuko, Shigematsu, Kenji, Kobayashi, Kensuke, Saito, Junichi, Kondo, Ichiro, Yaida, Nozomu, Watanabe, Hidenobu, Higashi, Midoriko, Shirasaka, Tetsuro, Doshu-Kajiura, Akira, Edanaga, Mitsutaka, Tanaka, Satoshi, Ikumi, Saori, Ito, Shingo, Okada, Masayuki, and Yorozu, Tomoko

Published
2024
Full Text
View/download PDF

14. Influx of nitrogen-rich material from the outer Solar System indicated by iron nitride in Ryugu samples

Author

Matsumoto, Toru, Noguchi, Takaaki, Miyake, Akira, Igami, Yohei, Haruta, Mitsutaka, Seto, Yusuke, Miyahara, Masaaki, Tomioka, Naotaka, Saito, Hikaru, Hata, Satoshi, Harries, Dennis, Takigawa, Aki, Nakauchi, Yusuke, Tachibana, Shogo, Nakamura, Tomoki, Matsumoto, Megumi, Ishii, Hope A., Bradley, John P., Ohtaki, Kenta, Dobrică, Elena, Leroux, Hugues, Le Guillou, Corentin, Jacob, Damien, de la Peña, Francisco, Laforet, Sylvain, Marinova, Maya, Langenhorst, Falko, Beck, Pierre, Phan, Thi H. V., Rebois, Rolando, Abreu, Neyda M., Gray, Jennifer, Zega, Thomas, Zanetta, Pierre-M., Thompson, Michelle S., Stroud, Rhonda, Burgess, Kate, Cymes, Brittany A., Bridges, John C., Hicks, Leon, Lee, Martin R., Daly, Luke, Bland, Phil A., Zolensky, Michael E., Frank, David R., Martinez, James, Tsuchiyama, Akira, Yasutake, Masahiro, Matsuno, Junya, Okumura, Shota, Mitsukawa, Itaru, Uesugi, Kentaro, Uesugi, Masayuki, Takeuchi, Akihisa, Sun, Mingqi, Enju, Satomi, Michikami, Tatsuhiro, Yurimoto, Hisayoshi, Okazaki, Ryuji, Yabuta, Hikaru, Naraoka, Hiroshi, Sakamoto, Kanako, Yada, Toru, Nishimura, Masahiro, Nakato, Aiko, Miyazaki, Akiko, Yogata, Kasumi, Abe, Masanao, Okada, Tatsuaki, Usui, Tomohiro, Yoshikawa, Makoto, Saiki, Takanao, Tanaka, Satoshi, Terui, Fuyuto, Nakazawa, Satoru, Watanabe, Sei-ichiro, and Tsuda, Yuichi

Published
2024
Full Text
View/download PDF

15. Characterization of the MASCOT landing area by Hayabusa2

Author

Schröder, Stefan, Sakatani, Naoya, Honda, Rie, Tatsumi, Eri, Yokota, Yasuhiro, Domingue, Deborah, Cho, Yuichiro, Kameda, Shingo, Kitazato, Kohei, Kouyama, Toru, Matsuoka, Moe, Miura, Akira, Morota, Tomokatsu, Okada, Tatsuaki, Sawada, Hirotaka, Senshu, Hiroki, Shimaki, Yuri, Sugita, Seiji, Tanaka, Satoshi, Yabuta, Hikaru, Yamada, Manabu, Grott, Matthias, Hamm, Maximilian, Ho, Tra-Mi, Jaumann, Ralf, Mottola, Stefano, Otto, Katharina, Schmitz, Nicole, and Scholten, Frank

Subjects
Astrophysics - Earth and Planetary Astrophysics
Abstract

Context. After landing on C-type asteroid Ryugu, MASCOT imaged brightly colored, submillimeter-sized inclusions in a small rock. Hayabusa2 successfully returned a sample of small particles from the surface of Ryugu, but none of these appear to harbor such inclusions. The samples are considered representative of Ryugu. Aims. To understand the apparent discrepancy between MASCOT observations and Ryugu samples, we assess whether the MASCOT landing site, and the rock by implication, is perhaps atypical for Ryugu. Methods. We analyzed observations of the MASCOT landing area acquired by three instruments on board Hayabusa2: a camera (ONC), a near-infrared spectrometer (NIRS3), and a thermal infrared imager (TIR). We compared the landing area properties thus retrieved with those of the average Ryugu surface. Results. We selected several areas and landforms in the landing area for analysis: a small crater, a collection of smooth rocks, and the landing site itself. The crater is relatively blue and the rocks are relatively red. The spectral and thermophysical properties of the landing site are very close to those of the average Ryugu surface. The spectral properties of the MASCOT rock are probably close to average, but its thermal inertia may be somewhat higher. Conclusions. The MASCOT rock can also be considered representative of Ryugu. Some of the submillimeter-sized particles in the returned samples stand out because of their atypical spectral properties. Such particles may be present as inclusions in the MASCOT rock.

Published
2022
Full Text
View/download PDF

16. Presolar stardust in asteroid Ryugu

Author

Barosch, Jens, Nittler, Larry R., Wang, Jianhua, Alexander, Conel M. O'D., De Gregorio, Bradley T., Engrand, Cécile, Kebukawa, Yoko, Nagashima, Kazuhide, Stroud, Rhonda M., Yabuta, Hikaru, Abe, Yoshinari, Aléon, Jérôme, Amari, Sachiko, Amelin, Yuri, Bajo, Ken-ichi, Bejach, Laure, Bizzarro, Martin, Bonal, Lydie, Bouvier, Audrey, Carlson, Richard W., Chaussidon, Marc, Choi, Byeon-Gak, Cody, George D., Dartois, Emmanuel, Dauphas, Nicolas, Davis, Andrew M., Dazzi, Alexandre, Deniset-Besseau, Ariane, Di Rocco, Tommaso, Duprat, Jean, Fujiya, Wataru, Fukai, Ryota, Gautam, Ikshu, Haba, Makiko K., Hashiguchi, Minako, Hibiya, Yuki, Hidaka, Hiroshi, Homma, Hisashi, Hoppe, Peter, Huss, Gary R., Ichida, Kiyohiro, Iizuka, Tsuyoshi, Ireland, Trevor R., Ishikawa, Akira, Ito, Motoo, Itoh, Shoichi, Kamide, Kanami, Kawasaki, Noriyuki, Kilcoyne, A. L. David, Kita, Noriko T., Kitajima, Kouki, Kleine, Thorsten, Komatani, Shintaro, Komatsu, Mutsumi, Krot, Alexander N., Liu, Ming-Chang, Martins, Zita, Masuda, Yuki, Mathurin, Jérémie, McKeegan, Kevin D., Montagnac, Gilles, Morita, Mayu, Mostefaoui, Smail, Motomura, Kazuko, Moynier, Frédéric, Nakai, Izumi, Nguyen, Ann N., Ohigashi, Takuji, Okumura, Taiga, Onose, Morihiko, Pack, Andreas, Park, Changkun, Piani, Laurette, Qin, Liping, Quirico, Eric, Remusat, Laurent, Russell, Sara S., Sakamoto, Naoya, Sandford, Scott A., Schönbächler, Maria, Shigenaka, Miho, Suga, Hiroki, Tafla, Lauren, Takahashi, Yoshio, Takeichi, Yasuo, Tamenori, Yusuke, Tang, Haolan, Terada, Kentaro, Terada, Yasuko, Usui, Tomohiro, Verdier-Paoletti, Maximilien, Wada, Sohei, Wadhwa, Meenakshi, Wakabayashi, Daisuke, Walker, Richard J., Yamashita, Katsuyuki, Yamashita, Shohei, Yin, Qing-Zhu, Yokoyama, Tetsuya, Yoneda, Shigekazu, Young, Edward D., Yui, Hiroharu, Zhang, Ai-Cheng, Abe, Masanao, Miyazaki, Akiko, Nakato, Aiko, Nakazawa, Satoru, Nishimura, Masahiro, Okada, Tatsuaki, Saiki, Takanao, Tanaka, Satoshi, Terui, Fuyuto, Tsuda, Yuichi, Watanabe, Sei-ichiro, Yada, Toru, Yogata, Kasumi, Yoshikawa, Makoto, Nakamura, Tomoki, Naraoka, Hiroshi, Noguchi, Takaaki, Okazaki, Ryuji, Sakamoto, Kanako, Tachibana, Shogo, and Yurimoto, Hisayoshi

Subjects
Astrophysics - Earth and Planetary Astrophysics, Astrophysics - Solar and Stellar Astrophysics
Abstract

We have conducted a NanoSIMS-based search for presolar material in samples recently returned from C-type asteroid Ryugu as part of JAXA's Hayabusa2 mission. We report the detection of all major presolar grain types with O- and C-anomalous isotopic compositions typically identified in carbonaceous chondrite meteorites: 1 silicate, 1 oxide, 1 O-anomalous supernova grain of ambiguous phase, 38 SiC, and 16 carbonaceous grains. At least two of the carbonaceous grains are presolar graphites, whereas several grains with moderate C isotopic anomalies are probably organics. The presolar silicate was located in a clast with a less altered lithology than the typical extensively aqueously altered Ryugu matrix. The matrix-normalized presolar grain abundances in Ryugu are 4.8$^{+4.7}_{-2.6}$ ppm for O-anomalous grains, 25$^{+6}_{-5}$ ppm for SiC grains and 11$^{+5}_{-3}$ ppm for carbonaceous grains. Ryugu is isotopically and petrologically similar to carbonaceous Ivuna-type (CI) chondrites. To compare the in situ presolar grain abundances of Ryugu with CI chondrites, we also mapped Ivuna and Orgueil samples and found a total of SiC grains and 6 carbonaceous grains. No O-anomalous grains were detected. The matrix-normalized presolar grain abundances in the CI chondrites are similar to those in Ryugu: 23 $^{+7}_{-6}$ ppm SiC and 9.0$^{+5.3}_{-4.6}$ ppm carbonaceous grains. Thus, our results provide further evidence in support of the Ryugu-CI connection. They also reveal intriguing hints of small-scale heterogeneities in the Ryugu samples, such as locally distinct degrees of alteration that allowed the preservation of delicate presolar material., Comment: 12 pages, 3 figures, 2 tables. Published in ApJL

Published
2022
Full Text
View/download PDF

20. The spatial distribution of impact craters on Ryugu

Author

Hirata, Naoyuki, Morota, Tomokatsu, Cho, Yuichiro, Kanamaru, Masanori, Watanabe, Sei-ichiro, Sugita, Seiji, Hirata, Naru, Yamamoto, Yukio, Noguchi, Rina, Shimaki, Yuri, Tatsumi, Eri, Yoshioka, Kazuo, Sawada, Hirotaka, Yokota, Yasuhiro, Sakatani, Naoya, Hayakawa, Masahiko, Matsuoka, Moe, Honda, Rie, Kameda, Shingo, Yamada, Mamabu, Kouyama, Toru, Suzuki, Hidehiko, Honda, Chikatoshi, Ogawa, Kazunori, Tsuda, Yuichi, Yoshikawa, Makoto, Saiki, Takanao, Tanaka, Satoshi, Terui, Fuyuto, Nakazawa, Satoru, Kikuchi, Shota, Yamaguchi, Tomohiro, Ogawa, Naoko, Ono, Go, Mimasu, Yuya, Yoshikawa, Kent, Takahashi, Tadateru, Takei, Yuto, Fujii, Atsushi, Takeuchi, Hiroshi, Okada, Tatsuaki, Shirai, Kei, and Iijima, Yu-ichi

Subjects
Astrophysics - Earth and Planetary Astrophysics
Abstract

Asteroid 162173 Ryugu has numerous craters. The initial measurement of impact craters on Ryugu, by Sugita et al. (2019), is based on Hayabusa2 ONC images obtained during the first month after the arrival of Hayabusa2 in June 2018. Utilizing new images taken until February 2019, we constructed a global impact crater catalogue of Ryugu, which includes all craters larger than 20 m in diameter on the surface of Ryugu. As a result, we identified 77 craters on the surface of Ryugu. Ryugu shows variation in crater density which cannot be explained by the randomness of cratering; there are more craters at lower latitudes and fewer at higher latitudes, and fewer craters in the western bulge (160 E - 290 E) than in the region around the meridian (300 E - 30 E). This variation implies a complicated geologic history for Ryugu. It seems that the longitudinal variation in crater density simply indicates variation in the crater ages; the cratered terrain around the meridian seems to be geologically old while the western bulge is relatively young. The latitudinal variation in crater density suggests that the equatorial ridge of Ryugu is a geologically old structure; however, this could be alternatively explained by a collision with many fission fragments during a short rotational period of Ryugu in the past., Comment: 18 pages 3 figures

Published
2022
Full Text
View/download PDF

21. Oxygen isotopes of anhydrous primary minerals show kinship between asteroid Ryugu and comet 81P/Wild2

Author

Kawasaki, Noriyuki, Nagashima, Kazuhide, Sakamoto, Naoya, Matsumoto, Toru, Bajo, Ken-ichi, Wada, Sohei, Igami, Yohei, Miyake, Akira, Noguchi, Takaaki, Yamamoto, Daiki, Russell, Sara S, Abe, Yoshinari, Aléon, Jérôme, Alexander, Conel M O’D, Amari, Sachiko, Amelin, Yuri, Bizzarro, Martin, Bouvier, Audrey, Carlson, Richard W, Chaussidon, Marc, Choi, Byeon-Gak, Dauphas, Nicolas, Davis, Andrew M, Di Rocco, Tommaso, Fujiya, Wataru, Fukai, Ryota, Gautam, Ikshu, Haba, Makiko K, Hibiya, Yuki, Hidaka, Hiroshi, Homma, Hisashi, Hoppe, Peter, Huss, Gary R, Ichida, Kiyohiro, Iizuka, Tsuyoshi, Ireland, Trevor R, Ishikawa, Akira, Ito, Motoo, Itoh, Shoichi, Kita, Noriko T, Kitajima, Kouki, Kleine, Thorsten, Komatani, Shintaro, Krot, Alexander N, Liu, Ming-Chang, Masuda, Yuki, McKeegan, Kevin D, Morita, Mayu, Motomura, Kazuko, Moynier, Frédéric, Nakai, Izumi, Nguyen, Ann, Nittler, Larry, Onose, Morihiko, Pack, Andreas, Park, Changkun, Piani, Laurette, Qin, Liping, Schönbächler, Maria, Tafla, Lauren, Tang, Haolan, Terada, Kentaro, Terada, Yasuko, Usui, Tomohiro, Wadhwa, Meenakshi, Walker, Richard J, Yamashita, Katsuyuki, Yin, Qing-Zhu, Yokoyama, Tetsuya, Yoneda, Shigekazu, Young, Edward D, Yui, Hiroharu, Zhang, Ai-Cheng, Nakamura, Tomoki, Naraoka, Hiroshi, Okazaki, Ryuji, Sakamoto, Kanako, Yabuta, Hikaru, Abe, Masanao, Miyazaki, Akiko, Nakato, Aiko, Nishimura, Masahiro, Okada, Tatsuaki, Yada, Toru, Yogata, Kasumi, Nakazawa, Satoru, Saiki, Takanao, Tanaka, Satoshi, Terui, Fuyuto, Tsuda, Yuichi, Watanabe, Sei-ichiro, Yoshikawa, Makoto, Tachibana, Shogo, and Yurimoto, Hisayoshi

Subjects
Earth Sciences, Physical Sciences, Space Sciences, Geology, Prevention
Abstract

The extraterrestrial materials returned from asteroid (162173) Ryugu consist predominantly of low-temperature aqueously formed secondary minerals and are chemically and mineralogically similar to CI (Ivuna-type) carbonaceous chondrites. Here, we show that high-temperature anhydrous primary minerals in Ryugu and CI chondrites exhibit a bimodal distribution of oxygen isotopic compositions: 16O-rich (associated with refractory inclusions) and 16O-poor (associated with chondrules). Both the 16O-rich and 16O-poor minerals probably formed in the inner solar protoplanetary disk and were subsequently transported outward. The abundance ratios of the 16O-rich to 16O-poor minerals in Ryugu and CI chondrites are higher than in other carbonaceous chondrite groups but are similar to that of comet 81P/Wild2, suggesting that Ryugu and CI chondrites accreted in the outer Solar System closer to the accretion region of comets.

Published
2022

22. Effects of Goal Orientation and Unlearning on Individual Exploration Activities

Author

Tanaka, Satoshi

Abstract

Purpose: Although individual exploration activities have been shown to promote organizational change and innovation, few studies have clarified the factors that quantitatively promote such aspects. This study aims to examine how individual exploration activities are facilitated by goal orientation and individual unlearning. Design/methodology/approach: The data are analyzed from 1,474 employees in various jobs in a variety of organizations in Japan. This study uses structural equation modeling to test the research model. Findings: The results of this study indicate three findings. First, unlearning is effective in promoting individual exploration activities. Second, goal orientation has not only a direct effect on individual exploration activities but also a significant indirect effect on such activities through unlearning. Third, performance goal orientation has an inhibitory effect on individual exploration activities. Practical implications: Managers should encourage team members' exploration activities by setting learning goals for members and providing opportunities for members to unlearn the outdated knowledge or skills they are familiar with and learn new ones. Originality/value: These findings contribute to the existing literature by demonstrating that learning goal orientation and unlearning play important roles in promoting individual exploration activities.

Published
2023
Full Text
View/download PDF

23. Floquet-Landau-Zener interferometry: Usefulness of the Floquet theory in pulse-laser-driven systems

Author

Ikeda, Tatsuhiko N., Tanaka, Satoshi, and Kayanuma, Yosuke

Subjects
Condensed Matter - Mesoscale and Nanoscale Physics, Condensed Matter - Quantum Gases, Condensed Matter - Statistical Mechanics, Physics - Optics, Quantum Physics
Abstract

We develop the Landau-Zener transfer matrix theory for the instantaneous Floquet states (IFSs) for quantum systems driven by strong pulse lasers. Applying this theory to the pulse excitation probability in two-level quantum systems, we show unexpectedly good quantitative agreements for few-cycle pulses. This approach enables us to qualitatively understand the probability's peculiar behaviors as quantum path interference between IFSs. We also study the pulse-width dependence, finding that this Floquet-state interpretation remains useful for shorter pulses down to 2-cycle ones in the present model. These results imply that the Floquet theory is meaningful in experimental few-cycle lasers if applied appropriately in the sense of IFSs., Comment: 9+6 pages, 12 figures; v2 reference added

Published
2022
Full Text
View/download PDF

24. Pyrrhotites in asteroid 162173 Ryugu: Records of the initial changes on their surfaces with aqueous alteration

Author

Yui, Hiroharu, Urashima, Shu-hei, Onose, Morihiko, Morita, Mayu, Komatani, Shintaro, Nakai, Izumi, Abe, Yoshinari, Terada, Yasuko, Homma, Hisashi, Motomura, Kazuko, Ichida, Kiyohiro, Yokoyama, Tetsuya, Nagashima, Kazuhide, Aléon, Jérôme, M. O’D. Alexander, Conel, Amari, Sachiko, Amelin, Yuri, Bajo, Ken-ichi, Bizzarro, Martin, Bouvier, Audrey, Carlson, Richard W., Chaussidon, Marc, Choi, Byeon-Gak, Dauphas, Nicolas, Davis, Andrew M., Fujiya, Wataru, Fukai, Ryota, Gautam, Ikshu, Haba, Makiko K., Hibiya, Yuki, Hidaka, Hiroshi, Hoppe, Peter, Huss, Gary R., Iizuka, Tsuyoshi, Ireland, Trevor R., Ishikawa, Akira, Itoh, Shoichi, Kawasaki, Noriyuki, Kita, Noriko T., Kitajima, Kouki, Kleine, Thorsten, Krot, Sasha, Liu, Ming-Chang, Masuda, Yuki, Moynier, Frédéric, Nguyen, Ann, Nittler, Larry, Pack, Andreas, Park, Changkun, Piani, Laurette, Qin, Liping, Di Rocco, Tommaso, Russell, Sara S., Sakamoto, Naoya, Schönbächler, Maria, Tafla, Lauren, Tang, Haolan, Terada, Kentaro, Usui, Tomohiro, Wada, Sohei, Wadhwa, Meenakshi, Walker, Richard J., Yamashita, Katsuyuki, Yin, Qing-Zhu, Yoneda, Shigekazu, Young, Edward D., Zhang, Ai-Cheng, Nakamura, Tomoki, Naraoka, Hiroshi, Noguchi, Takaaki, Okazaki, Ryuji, Sakamoto, Kanako, Yabuta, Hikaru, Abe, Masanao, Miyazaki, Akiko, Nakato, Aiko, Nishimura, Masahiro, Okada, Tatsuaki, Yada, Toru, Yogata, Kasumi, Nakazawa, Satoru, Saiki, Takanao, Tanaka, Satoshi, Terui, Fuyuto, Tsuda, Yuichi, Watanabe, Sei-ichiro, Yoshikawa, Makoto, Tachibana, Shogo, and Yurimoto, Hisayoshi

Published
2024
Full Text
View/download PDF

25. Lipid-orchestrated paracrine circuit coordinates mast cell maturation and anaphylaxis through functional interaction with fibroblasts

Author

Taketomi, Yoshitaka, Higashi, Takayoshi, Kano, Kuniyuki, Miki, Yoshimi, Mochizuki, Chika, Toyoshima, Shota, Okayama, Yoshimichi, Nishito, Yasumasa, Nakae, Susumu, Tanaka, Satoshi, Tokuoka, Suzumi M., Oda, Yoshiya, Shichino, Shigeyuki, Ueha, Satoshi, Matsushima, Kouji, Akahoshi, Noriyuki, Ishii, Satoshi, Chun, Jerold, Aoki, Junken, and Murakami, Makoto

Published
2024
Full Text
View/download PDF

26. Simultaneous geometric calibration and orbit-attitude determination of Hayabusa2’s deployable camera (DCAM3)

Author

Kikuchi, Shota, Shirai, Kei, Ishibashi, Ko, Wada, Koji, Yokota, Yasuhiro, Honda, Rie, Kadono, Toshihiko, Shimaki, Yuri, Sakatani, Naoya, Ogawa, Kazunori, Sawada, Hirotaka, Saiki, Takanao, Mimasu, Yuya, Takei, Yuto, Sugita, Seiji, Kouyama, Toru, Hirata, Naru, Nakazawa, Satoru, Yoshikawa, Makoto, Tanaka, Satoshi, Watanabe, Sei-ichiro, Tsuda, Yuichi, and Arakawa, Masahiko

Published
2024
Full Text
View/download PDF

28. Mast cells link immune sensing to antigen-avoidance behaviour

Author

Plum, Thomas, Binzberger, Rebecca, Thiele, Robin, Shang, Fuwei, Postrach, Daniel, Fung, Candice, Fortea, Marina, Stakenborg, Nathalie, Wang, Zheng, Tappe-Theodor, Anke, Poth, Tanja, MacLaren, Duncan A. A., Boeckxstaens, Guy, Kuner, Rohini, Pitzer, Claudia, Monyer, Hannah, Xin, Cuiyan, Bonventre, Joseph V., Tanaka, Satoshi, Voehringer, David, Vanden Berghe, Pieter, Strid, Jessica, Feyerabend, Thorsten B., and Rodewald, Hans-Reimer

Published
2023
Full Text
View/download PDF

29. A 400 Trillion-Grid Vlasov Simulation on Fugaku Supercomputer: Large-Scale Distribution of Cosmic Relic Neutrinos in a Six-dimensional Phase Space

Author

Yoshikawa, Kohji, Tanaka, Satoshi, and Yoshida, Naoki

Subjects
Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

We report a Vlasov simulation of cosmic relic neutrinos combined with N-body simulation of cold dark matter in the context of large-scale structure formation in the Universe performed on Fugaku supercomputer. Gravitational dynamics of the neutrinos is followed, for the first time, by directly integrating the Vlasov equation in a six-dimensional phase space. Our largest simulation combines the Vlasov simulation on 400 trillion grids and 330 billion-body calculations in a self-consistent manner, and reproduces accurately the nonlinear dynamics of neutrinos in the Universe. The novel high-order Vlasov solver is optimized by combining an array of state-of-the-art numerical schemes and fully utilizing the SIMD instructions on the A64FX processors. Time-To-Solution of our simulation is an order of magnitude shorter than the largest N-body simulations. The performance scales excellently with up to 147,456 nodes (7 million CPU cores) on Fugaku; the weak and strong scaling efficiencies are 82% - 96% and 82% - 93%, respectively., Comment: 11 pages, 8 figures. 2021 ACM Gordon-Bell Prize Finalist. A simulation movie is available at https://youtu.be/p2fHt8f7chQ

Published
2021
Full Text
View/download PDF

30. Three-dimensional textures of Ryugu samples and their implications for the evolution of aqueous alteration in the Ryugu parent body

Author

Tsuchiyama, Akira, Matsumoto, Megumi, Matsuno, Junya, Yasutake, Masahiro, Nakamura, Tomoki, Noguchi, Takaaki, Miyake, Akira, Uesugi, Kentaro, Takeuchi, Akihisa, Okumura, Shota, Fujioka, Yuri, Sun, Mingqi, Takigawa, Aki, Matsumoto, Toru, Enju, Satomi, Mitsukawa, Itaru, Enokido, Yuma, Kawamoto, Tatsuhiko, Mikouchi, Takeshi, Michikami, Tatsuhiro, Morita, Tomoyo, Kikuiri, Mizuha, Amano, Kana, Kagawa, Eiichi, Rubino, Stefano, Dionnet, Zelia, Aléon-Toppani, Alice, Brunetto, Rosario, Zolensky, Michael E., Nakano, Tsukasa, Nakano, Naoto, Yurimoto, Hisayoshi, Okazaki, Ryuji, Yabuta, Hikaru, Naraoka, Hiroshi, Sakamoto, Kanako, Yada, Toru, Nishimura, Masahiro, Nakato, Aiko, Miyazaki, Akiko, Yogata, Kasumi, Abe, Masanao, Okada, Tatsuaki, Usui, Tomohiro, Yoshikawa, Makoto, Saiki, Takanao, Tanaka, Satoshi, Nakazawa, Satoru, Terui, Fuyuto, Tachibana, Shogo, Watanabe, Sei-ichiro, and Tsuda, Yuichi

Published
2024
Full Text
View/download PDF

31. Enantioselective three-dimensional high-performance liquid chromatographic determination of amino acids in the Hayabusa2 returned samples from the asteroid Ryugu

Author

Furusho, Aogu, Ishii, Chiharu, Akita, Takeyuki, Oyaide, Mai, Mita, Masashi, Naraoka, Hiroshi, Takano, Yoshinori, Dworkin, Jason P., Oba, Yasuhiro, Koga, Toshiki, Fukushima, Kazuhiko, Aoki, Dan, Hashiguchi, Minako, Mita, Hajime, Chikaraishi, Yoshito, Ohkouchi, Naohiko, Ogawa, Nanako O., Sakai, Saburo, Glavin, Daniel P., Elsila, Jamie E., Parker, Eric T., Aponte, José C., McLain, Hannah L., Orthous-Daunay, Francois-Regis, Vuitton, Véronique, Thissen, Roland, Wolters, Cédric, Schmitt-Kopplin, Philippe, Ruf, Alexander, Isa, Junko, Hertkorn, Norbert, Eiler, John M., Yoshimura, Toshihiro, Sugahara, Haruna, Graham, Heather V., Furukawa, Yoshihiro, Araoka, Daisuke, Tanaka, Satoru, Yoshikawa, Takaaki, Kabashima, Fumie, Sasaki, Kazunori, Sato, Hajime, Yamazaki, Tomoya, Onose, Morihiko, Morita, Mayu, Kimura, Yuki, Kano, Kuniyuki, Aoki, Junken, Fujishima, Kosuke, Nomura, Shin-ichiro, Tachibana, Shogo, Nakamura, Tomoki, Noguchi, Takaaki, Okazaki, Ryuji, Yabuta, Hikaru, Yurimoto, Hisayoshi, Sakamoto, Kanako, Yada, Toru, Nishimura, Masahiro, Nakato, Aiko, Miyazaki, Akiko, Yogata, Kasumi, Abe, Masanao, Usui, Tomohiro, Yoshikawa, Makoto, Saiki, Takanao, Tanaka, Satoshi, Terui, Fuyuto, Nakazawa, Satoru, Okada, Tatsuaki, Watanabe, Sei-ichiro, Tsuda, Yuichi, and Hamase, Kenji

Published
2024
Full Text
View/download PDF

33. Correlated IR-SEM-TEM studies of three different grains from Ryugu: From the initial material to post-accretional processes

Author

Aléon-Toppani, Alice, Brunetto, Rosario, Dionnet, Zélia, Rubino, Stefano, Baklouti, Donia, Brisset, François, Vallet, Maxime, Heripre, Eva, Nakamura, Tomoki, Lantz, Cateline, Djouadi, Zahia, Borondics, Ferenc, Sandt, Christophe, Troadec, David, Mivumbi, Obadias, Matsumoto, Megumi, Amano, Kana, Morita, Tomoyo, Yurimoto, Hisayoshi, Noguchi, Takaaki, Okazaki, Ryuji, Yabuta, Hikaru, Naraoka, Hiroshi, Sakamoto, Kanako, Tachibana, Shogo, Yada, Toru, Nishimura, Masahiro, Nakato, Aiko, Miyazaki, Akiko, Yogata, Kasumi, Abe, Masanao, Okada, Tatsuaki, Usui, Tomohira, Yoshikawa, Makoto, Saiki, Takanao, Tanaka, Satoshi, Terui, Fuyuto, Nakazawa, Satoru, Watanabe, Sei-ichiro, and Tsuda, Yuichi

Published
2024
Full Text
View/download PDF

35. Soluble organic matter Molecular atlas of Ryugu reveals cold hydrothermalism on C-type asteroid parent body

Author

Schmitt-Kopplin, Philippe, Hertkorn, Norbert, Harir, Mourad, Moritz, Franco, Lucio, Marianna, Bonal, Lydie, Quirico, Eric, Takano, Yoshinori, Dworkin, Jason P., Naraoka, Hiroshi, Tachibana, Shogo, Nakamura, Tomoki, Noguchi, Takaaki, Okazaki, Ryuji, Yabuta, Hikaru, Yurimoto, Hisayoshi, Sakamoto, Kanako, Yada, Toru, Nishimura, Masahiro, Nakato, Aiko, Miyazaki, Akiko, Yogata, Kasumi, Abe, Masanao, Usui, Tomohiro, Yoshikawa, Makoto, Saiki, Takanao, Tanaka, Satoshi, Terui, Fuyuto, Nakazawa, Satoru, Okada, Tatsuaki, Watanabe, Sei-ichiro, and Tsuda, Yuichi

Published
2023
Full Text
View/download PDF

36. Space weathering acts strongly on the uppermost surface of Ryugu

Author

Matsuoka, Moe, Kagawa, Ei-ichi, Amano, Kana, Nakamura, Tomoki, Tatsumi, Eri, Osawa, Takahito, Hiroi, Takahiro, Milliken, Ralph, Domingue, Deborah, Takir, Driss, Brunetto, Rosario, Barucci, Antonella, Kitazato, Kohei, Sugita, Seiji, Fujioka, Yuri, Sasaki, Osamu, Kobayashi, Shiho, Iwata, Takahiro, Morota, Tomokatsu, Yokota, Yasuhiro, Kouyama, Toru, Honda, Rie, Kameda, Shingo, Cho, Yuichiro, Yoshioka, Kazuo, Sawada, Hirotaka, Hayakawa, Masahiko, Sakatani, Naoya, Yamada, Manabu, Suzuki, Hidehiko, Honda, Chikatoshi, Ogawa, Kazunori, Shirai, Kei, Lantz, Cateline, Rubino, Stefano, Yurimoto, Hisayoshi, Noguchi, Takaaki, Okazaki, Ryuji, Yabuta, Hikaru, Naraoka, Hiroshi, Sakamoto, Kanako, Tachibana, Shogo, Yada, Toru, Nishimura, Masahiro, Nakato, Aiko, Miyazaki, Akiko, Yogata, Kasumi, Abe, Masanao, Okada, Tatsuaki, Usui, Tomohiro, Yoshikawa, Makoto, Saiki, Takanao, Tanaka, Satoshi, Terui, Fuyuto, Nakazawa, Satoru, Watanabe, Sei-ichiro, and Tsuda, Yuichi

Published
2023
Full Text
View/download PDF

37. Chemical evolution of primordial salts and organic sulfur molecules in the asteroid 162173 Ryugu

Author

Yoshimura, Toshihiro, Takano, Yoshinori, Naraoka, Hiroshi, Koga, Toshiki, Araoka, Daisuke, Ogawa, Nanako O., Schmitt-Kopplin, Philippe, Hertkorn, Norbert, Oba, Yasuhiro, Dworkin, Jason P., Aponte, José C., Yoshikawa, Takaaki, Tanaka, Satoru, Ohkouchi, Naohiko, Hashiguchi, Minako, McLain, Hannah, Parker, Eric T., Sakai, Saburo, Yamaguchi, Mihoko, Suzuki, Takahiro, Yokoyama, Tetsuya, Yurimoto, Hisayoshi, Nakamura, Tomoki, Noguchi, Takaaki, Okazaki, Ryuji, Yabuta, Hikaru, Sakamoto, Kanako, Yada, Toru, Nishimura, Masahiro, Nakato, Aiko, Miyazaki, Akiko, Yogata, Kasumi, Abe, Masanao, Okada, Tatsuaki, Usui, Tomohiro, Yoshikawa, Makoto, Saiki, Takanao, Tanaka, Satoshi, Terui, Fuyuto, Nakazawa, Satoru, Watanabe, Sei-ichiro, Tsuda, Yuichi, and Tachibana, Shogo

Published
2023
Full Text
View/download PDF

38. Visualization of nanoscale magnetic domain states in the asteroid Ryugu

Author

Kimura, Yuki, Kato, Takeharu, Tanigaki, Toshiaki, Akashi, Tetsuya, Kasai, Hiroto, Anada, Satoshi, Yoshida, Ryuji, Yamamoto, Kazuo, Nakamura, Tomoki, Sato, Masahiko, Amano, Kana, Kikuiri, Mizuha, Morita, Tomoyo, Kagawa, Eiichi, Yada, Toru, Nishimura, Masahiro, Nakato, Aiko, Miyazaki, Akiko, Yogata, Kasumi, Abe, Masanao, Okada, Tatsuaki, Usui, Tomohiro, Yoshikawa, Makoto, Saiki, Takanao, Tanaka, Satoshi, Terui, Fuyuto, Nakazawa, Satoru, Yurimoto, Hisayoshi, Noguchi, Takaaki, Okazaki, Ryuji, Yabuta, Hikaru, Naraoka, Hiroshi, Sakamoto, Kanako, Watanabe, Sei-ichiro, Tsuda, Yuichi, and Tachibana, Shogo

Published
2023
Full Text
View/download PDF

40. Insights into the formation and evolution of extraterrestrial amino acids from the asteroid Ryugu

Author

Potiszil, Christian, Ota, Tsutomu, Yamanaka, Masahiro, Sakaguchi, Chie, Kobayashi, Katsura, Tanaka, Ryoji, Kunihiro, Tak, Kitagawa, Hiroshi, Abe, Masanao, Miyazaki, Akiko, Nakato, Aiko, Nakazawa, Satoru, Nishimura, Masahiro, Okada, Tatsuaki, Saiki, Takanao, Tanaka, Satoshi, Terui, Fuyuto, Tsuda, Yuichi, Usui, Tomohiro, Watanabe, Sei-ichiro, Yada, Toru, Yogata, Kasumi, Yoshikawa, Makoto, and Nakamura, Eizo

Published
2023
Full Text
View/download PDF

41. Uracil in the carbonaceous asteroid (162173) Ryugu

Author

Oba, Yasuhiro, Koga, Toshiki, Takano, Yoshinori, Ogawa, Nanako O., Ohkouchi, Naohiko, Sasaki, Kazunori, Sato, Hajime, Glavin, Daniel P., Dworkin, Jason P., Naraoka, Hiroshi, Tachibana, Shogo, Yurimoto, Hisayoshi, Nakamura, Tomoki, Noguchi, Takaaki, Okazaki, Ryuji, Yabuta, Hikaru, Sakamoto, Kanako, Yada, Toru, Nishimura, Masahiro, Nakato, Aiko, Miyazaki, Akiko, Yogata, Kasumi, Abe, Masanao, Okada, Tatsuaki, Usui, Tomohiro, Yoshikawa, Makoto, Saiki, Takanao, Tanaka, Satoshi, Terui, Fuyuto, Nakazawa, Satoru, Watanabe, Sei-ichiro, and Tsuda, Yuichi

Published
2023
Full Text
View/download PDF

42. PAHs, hydrocarbons, and dimethylsulfides in Asteroid Ryugu samples A0106 and C0107 and the Orgueil (CI1) meteorite

Author

Aponte, José C., Dworkin, Jason P., Glavin, Daniel P., Elsila, Jamie E., Parker, Eric T., McLain, Hannah L., Naraoka, Hiroshi, Okazaki, Ryuji, Takano, Yoshinori, Tachibana, Shogo, Dong, Guannan, Zeichner, Sarah S., Eiler, John M., Yurimoto, Hisayoshi, Nakamura, Tomoki, Yabuta, Hikaru, Terui, Fuyuto, Noguchi, Takaaki, Sakamoto, Kanako, Yada, Toru, Nishimura, Masahiro, Nakato, Aiko, Miyazaki, Akiko, Yogata, Kasumi, Abe, Masanao, Okada, Tatsuaki, Usui, Tomohiro, Yoshikawa, Makoto, Saiki, Takanao, Tanaka, Satoshi, Nakazawa, Satoru, Tsuda, Yuichi, and Watanabe, Sei-ichiro

Published
2023
Full Text
View/download PDF

43. Chondrule-like objects and Ca-Al-rich inclusions in Ryugu may potentially be the oldest Solar System materials

Author

Nakashima, Daisuke, Nakamura, Tomoki, Zhang, Mingming, Kita, Noriko T., Mikouchi, Takashi, Yoshida, Hideto, Enokido, Yuma, Morita, Tomoyo, Kikuiri, Mizuha, Amano, Kana, Kagawa, Eiichi, Yada, Toru, Nishimura, Masahiro, Nakato, Aiko, Miyazaki, Akiko, Yogata, Kasumi, Abe, Masanao, Okada, Tatsuaki, Usui, Tomohiro, Yoshikawa, Makoto, Saiki, Takanao, Tanaka, Satoshi, Nakazawa, Satoru, Terui, Fuyuto, Yurimoto, Hisayoshi, Noguchi, Takaaki, Yabuta, Hikaru, Naraoka, Hiroshi, Okazaki, Ryuji, Sakamoto, Kanako, Watanabe, Sei-ichiro, Tachibana, Shogo, and Tsuda, Yuichi

Published
2023
Full Text
View/download PDF

44. The spatial distribution of soluble organic matter and their relationship to minerals in the asteroid (162173) Ryugu

Author

Hashiguchi, Minako, Aoki, Dan, Fukushima, Kazuhiko, Naraoka, Hiroshi, Takano, Yoshinori, Dworkin, Jason P., Dworkin, Karin E., Aponte, José C., Elsila, Jamie E., Eiler, John M., Furukawa, Yoshihiro, Furusho, Aogu, Glavin, Daniel P., Graham, Heather V., Hamase, Kenji, Hertkorn, Norbert, Isa, Junko, Koga, Toshiki, McLain, Hannah L., Mita, Hajime, Oba, Yasuhiro, Ogawa, Nanako O., Ohkouchi, Naohiko, Orthous-Daunay, Francois-Regis, Parker, Eric T., Ruf, Alexander, Sakai, Saburo, Schmitt-Kopplin, Philippe, Sugahara, Haruna, Thissen, Roland, Vuitton, Véronique, Wolters, Cédric, Yoshimura, Toshihiro, Yurimoto, Hisayoshi, Nakamura, Tomoki, Noguchi, Takaaki, Okazaki, Ryuji, Yabuta, Hikaru, Sakamoto, Kanako, Tachibana, Shogo, Yada, Toru, Nishimura, Masahiro, Nakato, Aiko, Miyazaki, Akiko, Yogata, Kasumi, Abe, Masanao, Usui, Tomohiro, Yoshikawa, Makoto, Saiki, Takanao, Tanaka, Satoshi, Terui, Fuyuto, Nakazawa, Satoru, Watanabe, Sei-ichiro, and Tsuda, Yuichi

Published
2023
Full Text
View/download PDF

45. Variations of the surface characteristics of Ryugu returned samples

Author

Nakato, Aiko, Yada, Toru, Nishimura, Masahiro, Yogata, Kasumi, Miyazaki, Akiko, Nagashima, Kana, Hatakeda, Kentaro, Kumagai, Kazuya, Hitomi, Yuya, Soejima, Hiromichi, Bibring, Jean-Pierre, Pilorget, Cedric, Hamm, Vincent, Brunetto, Rosario, Riu, Lucie, Lourit, Lionel, Loizeau, Damien, Le Pivert-Jolivet, Tania, Lequertier, Guillaume, Moussi-Soffys, Aurelie, Abe, Masanao, Okada, Tatsuaki, Usui, Tomohiro, Nakazawa, Satoru, Saiki, Takanao, Tanaka, Satoshi, Terui, Fuyuto, Yoshikawa, Makoto, Watanabe, Sei-ichiro, and Tsuda, Yuichi

Published
2023
Full Text
View/download PDF

46. MASCOT’s in situ analysis of asteroid Ryugu in the context of regolith samples and remote sensing data returned by Hayabusa2

Author

Otto, Katharina, Ho, Tra-Mi, Ulamec, Stephan, Bibring, Jean-Pierre, Biele, Jens, Grott, Matthias, Hamm, Maximilian, Hercik, David, Jaumann, Ralf, Sato, Masahiko, Schröder, Stefan E., Tanaka, Satoshi, Auster, Ulrich, Kitazato, Kohei, Knollenberg, Jörg, Moussi, Aurelie, Nakamura, Tomoki, Okada, Tatsuaki, Pilorget, Cedric, Schmitz, Nicole, Sugita, Seiji, Wada, Koji, and Yabuta, Hikaru

Published
2023
Full Text
View/download PDF

47. A history of mild shocks experienced by the regolith particles on hydrated asteroid Ryugu

Author

Tomioka, Naotaka, Yamaguchi, Akira, Ito, Motoo, Uesugi, Masayuki, Imae, Naoya, Shirai, Naoki, Ohigashi, Takuji, Kimura, Makoto, Liu, Ming-Chang, Greenwood, Richard C., Uesugi, Kentaro, Nakato, Aiko, Yogata, Kasumi, Yuzawa, Hayato, Kodama, Yu, Hirahara, Kaori, Sakurai, Ikuya, Okada, Ikuo, Karouji, Yuzuru, Okazaki, Keishi, Kurosawa, Kosuke, Noguchi, Takaaki, Miyake, Akira, Miyahara, Masaaki, Seto, Yusuke, Matsumoto, Toru, Igami, Yohei, Nakazawa, Satoru, Okada, Tatsuaki, Saiki, Takanao, Tanaka, Satoshi, Terui, Fuyuto, Yoshikawa, Makoto, Miyazaki, Akiko, Nishimura, Masahiro, Yada, Toru, Abe, Masanao, Usui, Tomohiro, Watanabe, Sei-ichiro, and Tsuda, Yuichi

Published
2023
Full Text
View/download PDF

48. Insight into multi-step geological evolution of C-type asteroids from Ryugu particles

Author

Yamaguchi, Akira, Tomioka, Naotaka, Ito, Motoo, Shirai, Naoki, Kimura, Makoto, Greenwood, Richard C., Liu, Ming-Chang, McCain, Kaitlyn A., Matsuda, Nozomi, Uesugi, Masayuki, Imae, Naoya, Ohigashi, Takuji, Uesugi, Kentaro, Nakato, Aiko, Yogata, Kasumi, Yuzawa, Hayato, Kodama, Yu, Hirahara, Kaori, Sakurai, Ikuya, Okada, Ikuo, Karouji, Yuzuru, Nakazawa, Satoru, Okada, Tatsuaki, Saiki, Takanao, Tanaka, Satoshi, Terui, Fuyuto, Yoshikawa, Makoto, Miyazaki, Akiko, Nishimura, Masahiro, Yada, Toru, Abe, Masanao, Usui, Tomohiro, Watanabe, Sei-ichiro, and Tsuda, Yuichi

Published
2023
Full Text
View/download PDF

50. Pervasive aqueous alteration in the early Solar System revealed by potassium isotopic variations in Ryugu samples and carbonaceous chondrites

Author

Hu, Yan, Moynier, Frédéric, Dai, Wei, Paquet, Marine, Yokoyama, Tetsuya, Abe, Yoshinari, Aléon, Jérôme, Alexander, Conel M. O'D., Amari, Sachiko, Amelin, Yuri, Bajo, Ken-ichi, Bizzarro, Martin, Bouvier, Audrey, Carlson, Richard W., Chaussidon, Marc, Choi, Byeon-Gak, Dauphas, Nicolas, Davis, Andrew M., Di Rocco, Tommaso, Fujiya, Wataru, Fukai, Ryota, Gautam, Ikshu, Haba, Makiko K., Hibiya, Yuki, Hidaka, Hiroshi, Homma, Hisashi, Hoppe, Peter, Huss, Gary R., Ichida, Kiyohiro, Iizuka, Tsuyoshi, Ireland, Trevor R., Ishikawa, Akira, Itoh, Shoichi, Kawasaki, Noriyuki, Kita, Noriko T., Kitajima, Koki, Kleine, Thorsten, Komatani, Shintaro, Krot, Alexander N., Liu, Ming-Chang, Masuda, Yuki, Morita, Mayu, Motomura, Kazuko, Nakai, Izumi, Nagashima, Kazuhide, Nesvorný, David, Nguyen, Ann, Nittler, Larry, Onose, Morihiko, Pack, Andreas, Park, Changkun, Piani, Laurette, Qin, Liping, Russell, Sara S., Sakamoto, Naoya, Schönbächler, Maria, Tafla, Lauren, Tang, Haolan, Terada, Kentaro, Terada, Yasuko, Usui, Tomohiro, Wada, Sohei, Wadhwa, Meenakshi, Walker, Richard J., Yamashita, Katsuyuki, Yin, Qing-Zhu, Yoneda, Shigekazu, Young, Edward D., Yui, Hiroharu, Zhang, Ai-Cheng, Nakamura, Tomoki, Naraoka, Hiroshi, Noguchi, Takaaki, Okazaki, Ryuji, Sakamoto, Kanako, Yabuta, Hikaru, Abe, Masanao, Miyazaki, Akiko, Nakato, Aiko, Nishimura, Masahiro, Okada, Tatsuaki, Yada, Toru, Yogata, Kasumi, Nakazawa, Satoru, Saiki, Takanao, Tanaka, Satoshi, Terui, Fuyuto, Tsuda, Yuichi, Watanabe, Sei-ichiro, Yoshikawa, Makoto, Tachibana, Shogo, and Yurimoto, Hisayoshi

Published
2024
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results