研究者詳細 - 小林　浩

論文 - 小林　浩

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Photoevaporation of Grain-depleted Protoplanetary Disks around Intermediate-mass Stars: Investigating the Possibility of Gas-rich Debris Disks as Protoplanetary Remnants 査読有り国際共著

Nakatani, Riouhei; Kobayashi, Hiroshi; Kuiper, Rolf; Nomura, Hideko; Aikawa, Yuri

ASTROPHYSICAL JOURNAL 915 巻頁： id. 90 2021年7月

Collisional Growth and Fragmentation of Dust Aggregates with Low Mass Ratios. I. Critical Collision Velocity for Water Ice 査読有り

Hasegawa, Yukihiko; Suzuki, Takeru K.; Tanaka, Hidekazu; Kobayashi, Hiroshi; Wada, Koji

ASTROPHYSICAL JOURNAL 915 巻頁： id.22 2021年7月

New Growth Mechanism of Dust Grains in Protoplanetary Disks with Magnetically Driven Disk Winds 査読有り

Taki Tetsuo, Kuwabara Koh, Kobayashi Hiroshi, Suzuki Takeru K.

ASTROPHYSICAL JOURNAL 909 巻 ( 1 ) 2021年3月

Ring Formation by Coagulation of Dust Aggregates in the Early Phase of Disk Evolution around a Protostar 査読有り国際共著

Ohashi Satoshi, Kobayashi Hiroshi, Nakatani Riouhei, Okuzumi Satoshi, Tanaka Hidekazu, Murakawa Koji, Zhang Yichen, Liu Hauyu Baobab, Sakai Nami

ASTROPHYSICAL JOURNAL 907 巻 ( 2 ) 2021年2月

Is water ice an efficient facilitator for dust coagulation? 査読有り

Kimura Hiroshi, Wada Koji, Kobayashi Hiroshi, Senshu Hiroki, Hirai Takayuki, Yoshida Fumi, Kobayashi Masanori, Hong Peng K., Arai Tomoko, Ishibashi Ko, Yamada Manabu

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 498 巻 ( 2 ) 頁： 1801 - 1813 2020年10月

Sample collection from asteroid (162173) Ryugu by Hayabusa2: Implications for surface evolution 査読有り

Morota T., Sugita S., Cho Y., Kanamaru M., Tatsumi E., Sakatanit N., Honda R., Hirata N., Kikuchi H., Yamada M., Yokota Y., Kamedal S., Matsuoka M., Sawada H., Honda C., Kouyama T., Ogawa K., Suzuki H., Yoshioka K., Hayakawa M., Hirata N., Hirabayashi M., Miyamoto H., Michikami T., Hiroi T., Hemmi R., Barnouin O. S., Ernst C. M., Kitazatou K., Nakamura T., Riu L., Senshu H., Kobayashi H., Sasaki S., Komatsu G., Tanabe N., Fujii Y., Irie T., Suemitsu M., Takaki N., Sugimoto C., Yumoto K., Ishida M., Kato H., Moroi K., Domingue D., Michel P., Pilorget C., Iwata T., Abe M., Ohtake M., Nakauchi Y., Tsumura K., Yabuta H., Ishihara Y., Noguchi R., Matsumoto K., Miura A., Namiki N., Tachibana S., Arakawa M., Ikeda H., Wada K., Mizuno T., Hirose C., Hosoda S., Mori O., Shimada T., Soldini S., Tsukizaki R., Yano H., Ozaki M., Takeuchi H., Yamamoto Y., Okada T., Shimaki Y., Shirai K., Iijima Y., Noda H., Kikuchi S., Yamaguchi T., Ogawa N., Ono G., Mimasu Y., Yoshikawa K., Takahashi T., Takei Y., Fujii A., Nakazawa S., Terui F., Tanaka S., Yoshikawa M., Saiki T., Watanabe S., Tsuda Y.

SCIENCE 368 巻 ( 6491 ) 頁： 654 - + 2020年5月

High-resolution simulations of catastrophic disruptions: Resultant shape distributions

Sugiura Keisuke, Kobayashi Hiroshi, Inutsuka Shu-ichiro

PLANETARY AND SPACE SCIENCE 181 巻 2020年2月

Importance of Giant Impact Ejecta for Orbits of Planets Formed during the Giant Impact Era

Kobayashi Hiroshi, Isoya Kazuhide, Sato Yutaro

ASTROPHYSICAL JOURNAL 887 巻 ( 2 ) 2019年12月

First Subarcsecond Submillimeter-wave [CI] Image of 49 Ceti with ALMA

Higuchi Aya E., Saigo Kazuya, Kobayashi Hiroshi, Iwasaki Kazunari, Momose Munetake, Soon Kang Lou, Sakai Nami, Kunitomo Masanobu, Ishihara Daisuke, Yamamoto Satoshi

ASTROPHYSICAL JOURNAL 883 巻 ( 2 ) 2019年10月

Collisional elongation: Possible origin of extremely elongated shape of 1I/'Oumuamua

Sugiura Keisuke, Kobayashi Hiroshi, Inutsuka Shu-ichiro

ICARUS 328 巻頁： 14 - 22 2019年8月

Near- to mid-infrared spectroscopy of the heavily obscured AGN LEDA 1712304 with AKARI/IRC

Tsuchikawa T., Kaneda H., Oyabu S., Kokusho T., Morihana K., Kobayashi H., Yamagishi M., Toba Y.

ASTRONOMY & ASTROPHYSICS 626 巻 2019年6月

Toward understanding the origin of asteroid geometries Variety in shapes produced by equal-mass impacts

Sugiura K., Kobayashi H., Inutsuka S.

ASTRONOMY & ASTROPHYSICS 620 巻 2018年12月

Collisional Disruption of Planetesimals in the Gravity Regime with iSALE Code: Comparison with SPH code for Purely Hydrodynamic Bodies 査読有り

Ryo Suetsugu, Hidekazu Tanaka, Hiroshi Kobayashi, Hidenori Genda

Icarus 314 巻頁： 121-132 2018年11月

From Planetesimal to Planet in Turbulent Disks. II. Formation of Gas Giant Planets

Kobayashi Hiroshi, Tanaka Hidekazu

ASTROPHYSICAL JOURNAL 862 巻 ( 2 ) 2018年8月

Star formation induced by cloud-cloud collisions and galactic giant molecular cloud evolution 査読有り

Kobayashi Masato I. N., Kobayashi Hiroshi, Inutsuka Shu-ichiro, Fukui Yasuo

PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN 70 巻 2018年5月

Impact erosion model for gravity-dominated planetesimals 査読有り

H. Genda, T. Fujita, H. Kobayashi, H. Tanaka, R. Suetsugu, Y. Abe

Icarus 294 巻頁： 234-246 2017年9月

Impact erosion model for gravity-dominated planetesimals

Genda Hidenori, Fujita Tomoaki, Kobayashi Hiroshi, Tanaka Hidekazu, Suetsugu Ryo, Abe Yutaka

ICARUS 294 巻頁： 234-246 2017年9月

A likely detection of a local interplanetary dust cloud passing near the Earth in the AKARI mid-infrared all-sky map

D. Ishihara, T. Kondo, H. Kaneda, T. Suzuki, K. Nakamichi, S. Takaba, H. Kobayashi, S. Masuda, T. Ootsubo, J. Pyo, T. Onaka

ASTRONOMY & ASTROPHYSICS 603 巻 2017年7月

記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：EDP SCIENCES S A

Context. We are creating the AKARI mid-infrared all-sky diffuse maps. Through a foreground removal of the zodiacal emission, we serendipitously detected a bright residual component whose angular size is about 50 degrees x 20 degrees at a wavelength of 9 mu m.
Aims. We investigate the origin and the physical properties of the residual component.
Methods. We measured the surface brightness of the residual component in the AKARI mid-infrared all-sky maps.
Results. The residual component was significantly detected only in 2007 January, even though the same region was observed in 2006 July and 2007 July, which shows that it is not due to the Galactic emission. We suggest that this may be a small cloud passing near the Earth. By comparing the observed intensity ratio of I-9 mu m/I-18 mu m with the expected intensity ratio assuming thermal equilibrium of dust grains at 1 AU for various dust compositions and sizes, we find that dust grains in the moving cloud are likely to be much smaller than typical grains that produce the bulk of the zodiacal light.
Conclusions. Considering the observed date and position, it is likely that it originates in the solar coronal mass ejection ( CME) which took place on 2007 January 25.

DOI： 10.1051/0004-6361/201628954

Web of Science

Size dependence of dust distribution around the earth orbit 査読有り

T. Ueda, H. Kobayashi, T. Takeuchi, D. Ishihara, T. Kondo, H. Kaneda

Astrophysical Journal 153 巻 ( 5 ) 頁： 232 2017年5月

Faint warm debris disks around nearby bright stars explored by AKARI and IRSF 査読有り

Daisuke Ishihara, Nami Takeuchi, Hiroshi Kobayashi, Takahiro Nagayama, Hidehiro Kaneda, Shu-ichiro Inutsuka, Hideaki Fujiwara, Takashi Onaka

Astronomy & Astrophysics 601 巻頁： A72 2017年5月

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