Zobrazeno 1 - 10
of 93
pro vyhledávání: '"Yumiko Oasa"'
Autor:
Kengo Tachihara, Naofumi Fukaya, Kazuki Tokuda, Yasumasa Yamasaki, Takeru Nishioka, Daisei Abe, Tsuyoshi Inoue, Naoto Harada, Ayumu Shoshi, Shingo Nozaki, Asako Sato, Mitsuki Omura, Kakeru Fujishiro, Misato Fukagawa, Masahiro N. Machida, Takahiro Kanai, Yumiko Oasa, Toshikazu Onishi, Kazuya Saigo, Yasuo Fukui
Publikováno v:
The Astrophysical Journal, Vol 968, Iss 2, p 131 (2024)
We report Atacama Large Millimeter/submillimeter Array/Atacama Compact Array observations of a high-density region of the Corona Australis cloud forming a young star cluster, and the results of resolving internal structures. In addition to embedded C
Externí odkaz:
https://doaj.org/article/9f4edafbeefd4dcb934f64617f8a7ed1
Autor:
Belinda Damian, Jessy Jose, Beth Biller, Gregory J. Herczeg, Loïc Albert, Katelyn Allers, Zhoujian Zhang, Michael C. Liu, Sophie Dubber, KT Paul, Wen-Ping Chen, Bhavana Lalchand, Tanvi Sharma, Yumiko Oasa
Publikováno v:
The Astrophysical Journal, Vol 951, Iss 2, p 139 (2023)
Low-mass stars and substellar objects are essential in tracing the initial mass function (IMF). We study the nearby young σ Orionis cluster ( d ∼ 408 pc, age ∼ 1.8 Myr) using deep near-infrared (NIR) photometric data in the J , W , and H bands f
Externí odkaz:
https://doaj.org/article/0c670d3900474eb6b69e7536114665e4
Autor:
Takashi Horiuchi, Hidekazu Hanayama, Masatoshi Ohishi, Tatsuya Nakaoka, Ryo Imazawa, Koji S Kawabata, Jun Takahashi, Hiroki Onozato, Tomoki Saito, Masayuki Yamanaka, Daisaku Nogami, Yusuke Tampo, Naoto Kojiguchi, Jumpei Ito, Masaaki Shibata, Malte Schramm, Yumiko Oasa, Takahiro Kanai, Kohei Oide, Katsuhiro L Murata, Ryohei Hosokawa, Yutaka Takamatsu, Yuri Imai, Naohiro Ito, Masafumi Niwano, Seiko Takagi, Tatsuharu Ono, Vladimir V Kouprianov
Publikováno v:
Publications of the Astronomical Society of Japan.
This study provides the results of simultaneous multicolor observations for the first Visorsat (STARLINK-1436) and the ordinary Starlink satellite, STARLINK-1113 in the $U$, $B$, $V$, $g'$, $r$, $i$, $R_{\rm C}$, $I_{\rm C}$, $z$, $J$, $H$, and $K_s$
Autor:
Bhavana Lalchand, Wen-Ping Chen, Beth A. Biller, Loïc Albert, Katelyn Allers, Sophie Dubber, Zhoujian Zhang, Michael C. Liu, Jessy Jose, Belinda Damian, Tanvi Sharma, Mickaël Bonnefoy, Yumiko Oasa
We report the discovery of substellar objects in the young star cluster IC 348 and the neighboring Barnard 5 dark cloud, both at the eastern end of the Perseus star-forming complex. The substellar candidates are selected using narrowband imaging, i.e
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::af9bfeae4c797a1af97223d8379b08e7
Autor:
Mingjie Jian, Hideo Mamiya, Yuhei Kamei, Kenshi Yanagisawa, Ryohei Hosokawa, Hiroshi Akitaya, Noriyuki Katoh, Satoshi Honda, Yuichiro Sekiguchi, Yumiko Oasa, Koji S. Kawabata, Moeno Yasuda, Takumi Iwasaki, Nobuyuki Kawai, Ryou Ohsawa, Masayuki Yamanaka, Miki Oeda, Ryo Hamasaki, Chihiro Ishioka, Yousuke Utsumi, Takumi Shigeyoshi, Kazuki Daikuhara, Himeka Takeuchi, Miyako Tozuka, Hiroki Onozato, Jun Takahashi, Tomoki Morokuma, Yasuki Tamura, Yuki Nishinaka, Michitoshi Yoshida, Takahiro Kanai, Nagomi Uchida, Keiichiro Kubota, Kazuki Shiraishi, Takahiro Nagayama, Takuya Takarada, Yang Chong, Tomoki Saito, Yoshinori Uzawa, Yoichi Yatsu, Kumiko Morihana, Yuma Kubota, Shigeyuki Sako, Kazuya Matsubayashi, Hidehiro Kaneda, Yuu Niino, Masafumi Niwano, Mahito Sasada, Kengo Takagi, Daisuke Suzuki, Takayuki Ohgami, Nozomu Tominaga, M. Shikauchi, Kota Iida, Noriatsu Nakamura, Futa Ogawa, Katsuhiro L. Murata, Sayaka Toma, Ryosuke Itoh, Kohei Oide, Daisaku Nogami, Fumio Abe, Masaomi Tanaka, Kouji Ohta, Ayane Kaneko, Tatsuya Nakaoka, Ryo Adachi, Ryoya Tanaka, Toshikazu Shigeyama, Masaki Takayama, Fumiya Imazato
The Laser Interferometer Gravitational-wave Observatory Scientific Collaboration and Virgo Collaboration (LVC) sent out 56 gravitational-wave (GW) notices during the third observing run (O3). Japanese collaboration for Gravitational wave ElectroMagne
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1440b967ef8dc64732cd3a52fad2f65d
http://arxiv.org/abs/2106.04842
http://arxiv.org/abs/2106.04842
Autor:
Yoichi Itoh, Yumiko Oasa
Publikováno v:
International Journal of Astronomy and Astrophysics. :39-50
Star-forming regions are often associated with nebulosity. In this study, we investigated infrared diffuse emission in Spitzer IRAC images. The infrared nebula L1527 traces outflows emanating from a low-mass protostar. The nebular color is consistent
Publikováno v:
International Journal of Astronomy and Astrophysics. :154-471
The results of a spectroscopic survey of H alpha emission line stars associated with fourteen bright rimmed clouds are presented. Slit-less optical spectroscopy was carried out with the Inter University Centre for Astronomy and Astrophysics (IUCAA) 2
Context. The discovery of an extrasolar planet with an ocean has crucial importance in the search for life beyond Earth. The polarimetric detection of specularly reflected light from a smooth liquid surface is anticipated theoretically, though the po
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c5d04e3e07dde8cf0832ed947bf044c7
Autor:
Sho Sumiya, Mariko Kimura, Daisaku Nogami, Yoshinori Uzawa, Daiki Ito, Geoff Stone, Ikki Otsubo, Taichi Kato, Yuki Nishinaka, Kengo Nikai, Takahiro Kanai, Hanami Matsumoto, Ryou Ohsawa, Chihiro Ishioka, Tonny Vanmunster, Yuina Yamazaki, Mahito Sasada, Tatsuya Nakaoka, Sjoerd Dufoer, Tamás Tordai, Sergey Yu. Shugarov, Masanori Mizutani, Naoto Kojiguchi, Hiroshi Itoh, Ryuhei Ohnishi, Pavol A. Dubovsky, Yuki Sugiura, Hiroshi Akitaya, Masahiro Morita, Tomohito Ohshima, Makoto Ichiki, K. L. Murata, Yumiko Oasa, Miyako Tozuka, Kohei Oide, Takashi Horiuchi, Ian Miller, Yasuyuki Wakamatsu, T. Saito, John R. Thorstensen, Kengo Takagi, Masaki Takayama, Masayuki Yamanaka, Keisuke Isogai
We report photometric and spectroscopic observations of the eclipsing SU UMa-type dwarf nova ASASSN-18aan. We observed the 2018 superoutburst with 2.3 mag brightening and found the orbital period ($P_{\rm orb}$) to be 0.149454(3) d, or 3.59 hr. This
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2e0f32d0067f10f20fdbc2f42b5d6355
Publikováno v:
Ground-based and Airborne Instrumentation for Astronomy VIII.
We describe a development and performance evaluations for Mulit-wavelength SimultaneouS High throughput Imager and polarimeter called as ”MuSaSHI”. The science drivers are high-precision muticolor photometric stud- ies of time-variable astronomic