Zobrazeno 1 - 10
of 162
pro vyhledávání: '"HAYAKAWA, TAKAHIRO"'
Autor:
Fukui, Yasuo, Aruga, Maki, Sano, Hidetoshi, Hayakawa, Takahiro, Inoue, Tsuyoshi, Rowell, Gavin, Einecke, Sabrina, Tachihara, Kengo
Fukui et al. (2021) quantified the hadronic and leptonic gamma rays in the young TeV gamma ray shell-type supernova remnant (SNR) RXJ1713.7-3946 (RXJ1713), and demonstrated that the gamma rays are a combination of the hadronic and leptonic gamma ray
Externí odkaz:
http://arxiv.org/abs/2311.11355
Autor:
Hayakawa, Takahiro, Fukui, Yasuo
We derived the dust-to-HI ratio of the intermediate-velocity clouds (IVCs), the high-velocity clouds (HVCs), and the local HI gas, by carrying out a multiple-regression analysis of the 21cm HI emission combined with the sub-mm dust optical depth. The
Externí odkaz:
http://arxiv.org/abs/2208.13406
Autor:
Fukui, Yasuo, Sano, Hidetoshi, Yamane, Yumiko, Hayakawa, Takahiro, Inoue, Tsuyoshi, Tachihara, Kengo, Rowell, Gavin, Einecke, Sabrina
We analyzed the TeV gamma-ray image of a supernova remnant RX J1713.7$-$3946 (RX J1713) through a comparison with the interstellar medium (ISM) and the non-thermal X-rays. The gamma-ray datasets at two energy bands of $>$2 TeV and $>$250-300 GeV were
Externí odkaz:
http://arxiv.org/abs/2105.02734
Autor:
Nishimura, Atsushi, Ohama, Akio, Kimura, Kimihiro, Tsutsumi, Daichi, Matsue, Yudai, Yamada, Rin, Sakamoto, Mariko, Matsunaga, Kenta, Hasegawa, Yutaka, Minami, Taisei, Matsumoto, Takeru, Shiotani, Kazuki, Okuda, So, Fujishiro, Kakeru, Sakasai, Keisuke, Suzuki, Masahiro, Saeki, Shun, Satani, Kouki, Urushihara, Kousuke, Kato, Chiharu, Kondo, Takashi, Okawa, Kazuki, Kurita, Daiki, Inaba, Tetsuta, Maruyama, Shohei, Koga, Masako, Noda, Kenya, Kohno, Mikito, Iwamura, Hiroaki, Hyoto, Yuki, Hori, Yuichi, Nishikawa, Kaoru, Nishioka, Takeru, Pang, Thoqin, Sano, Hidetoshi, Enokiya, Rei, Yoshiike, Satoshi, Fujita, Shinji, Hayashi, Katsuhiro, Torii, Kazufumi, Hayakawa, Takahiro, Taniguchi, Akio, Tsuge, Kisetsu, Yamane, Yumiko, Hattori, Yusuke, Ohno, Takahiro, Ueda, Shota, Masui, Sho, Yamasaki, Yasumasa, Kondo, Hiroshi, Suzuki, Kazuji, Kobayashi, Kazuhiro, Fujii, Yasunori, Fujii, Yumi, Minamidani, Tetsuhiro, Okuda, Takeshi, Yamamoto, Hiroaki, Tachihara, Kengo, Onishi, Toshikazu, Mizuno, Akira, Ogawa, Hideo, Fukui, Yasuo
We report the current status of the NASCO (NAnten2 Super CO survey as legacy) project which aims to provide all-sky CO data cube of southern hemisphere using the NANTEN2 4-m submillimeter telescope installed at the Atacama Desert through developing a
Externí odkaz:
http://arxiv.org/abs/2011.14666
A supersonic cloud-cloud collision produces a shock-compressed layer which leads to formation of high-mass stars via gravitational instability. We carried out a detailed analysis of the layer by using the numerical simulations of magneto-hydrodynamic
Externí odkaz:
http://arxiv.org/abs/1909.08202
Autor:
Hayashi, Katsuhiro, Okamoto, Ryuji, Yamamoto, Hiroaki, Hayakawa, Takahiro, Tachihara, Kengo, Fukui, Yasuo
Gas and dust properties in the Chamaeleon molecular cloud complex have been investigated with emission lines from atomic hydrogen (HI) and 12CO molecule, dust optical depth at 353 GHz ($\tau_{353}$), and $J$-band infrared extinction ($A_{J}$). We hav
Externí odkaz:
http://arxiv.org/abs/1905.04184
Akademický článek
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We carried out synthetic observations of a theoretical model of interstellar carbon in CO, C I and C II including H2 formation. The theoretical model based on numerical simulations of H I gas converging at a velocity of 20 km/s by Inoue & Inutsuka (2
Externí odkaz:
http://arxiv.org/abs/1811.02224
Autor:
Fukui, Yasuo, Koga, Masako, Maruyama, Shohei, Hayakawa, Takahiro, Okamoto, Ryuji, Yamamoto, Hiroaki, Tachihar, Kengo, Shelton, Robin, Sasaki, Manami
We found that an intermediate velocity cloud (IVC) IVC 86-36 in HI 21 cm emission shows a head-tail distribution toward the Galactic plane with marked parallel filamentary streamers, which is extended over 40 degrees in the sky. The distance of IVC 8
Externí odkaz:
http://arxiv.org/abs/1711.09529
Autor:
Ohama, Akio, Kohno, Mikito, Hasegawa, Keisuke, Torii, Kazufumi, Nishimura, Atsushi, Hattori, Yusuke, Hayakawa, Takahiro, Inoue, Tsuyoshi, Sano, Hidetoshi, Yamamoto, Hiroaki, Tachihara, Kengo, Fukui, Yasuo
Understanding the mechanism of O star formation is one of the most important issues in current astrophysics. It is also an issue of keen interest how O stars affect their surroundings and trigger secondary star formation. An H\,\emissiontype{II} regi
Externí odkaz:
http://arxiv.org/abs/1709.02320