Search Results 1-20 of 161

  • Presupernova Neutrino Emission from Massive Stars and Its Observational Importance  [in Japanese]

    加藤 ちなみ

    天文月報 = The astronomical herald 113(1), 14-21, 2020-01

  • Screened and unscreened solutions for relativistic star in de Rham-Gabadadze-Tolley massive gravity

    Yamazaki Masashi , Katsuragawa Taishi , Odintsov Sergei D. , Nojiri Shin'ichi

    … We study the static and spherical symmetric configurations in the nonminimal model of the de Rham-Gabadadze-Tolley (dRGT) massive gravity with a flat reference metric. … We demonstrate that this equation suggests an absence of the Vainshtein mechanism in the minimal model of the dRGT massive gravity, while it has two branches of solutions where one connects with the Schwarzschild spacetime and another implies the significant deviation from the asymptotically flat spacetime in the nonminimal model. …

    Physical Review D 100(8), 084060, 2019-10-25

    IR 

  • Time Evolution of Broadband Nonthermal Emission from Supernova Remnants in Different Circumstellar Environments

    Yasuda Haruo , Lee Shiu-Hang

    … Future SNR observations with CTA will thus be promising for probing the CSM environment of SNe and hence their progenitor properties, including the mass-loss history of massive stars. …

    Astrophysical Journal (876), 2019-05-01

    IR 

  • Spatial Distribution of AlO in a High-mass Protostar Candidate Orion Source I

    Tachibana Shogo , Kamizuka Takafumi , Hirota Tomoya , Sakai Nami , Oya Yoko , Takigawa Aki , Yamamoto Satoshi

    … UTokyo FOCUS Press releases "Our history in the stars : Matter around a young star helps astronomers explore our stellar history" https://www.u-tokyo.ac.jp/focus/en/press/z0508_00043.html …

    The Astrophysical Journal 875(2), L29, 2019-04-24

    IR 

  • The Impact of Feedback in Massive Star Formation. II. Lower Star Formation Efficiency at Lower Metallicity

    Tanaka Kei E. I. , Tan Jonathan C. , Zhang Yichen , Hosokawa Takashi

    … We conduct a theoretical study of the formation of massive stars over a wide range of metallicities from 10⁻⁵ to 1 Z☉ and evaluate the star formation efficiencies (SFEs) from prestellar cloud cores taking into account multiple feedback processes. …

    The Astrophysical Journal 861(1), 2018-07-01

    IR 

  • A systematic study of Galactic infrared bubbles along the whole Galactic plane with the AKARI all-sky surveys

    花岡 美咲 , 金田 英宏 , 鈴木 仁研 , 國生 拓摩 , 大薮 進喜 , 石原 大助 , Hanaoka Misaki , Kaneda Hidehiro , Suzuki Toyoaki , Kokusho Takuma , Oyabu Shinki , Ishihara Daisuke

    第4回「あかり」国際会議 (2017年10月17-20日. 東京大学), 文京区, 東京形態: カラー図版あり資料番号: AA1730026061

    宇宙航空研究開発機構特別資料 = JAXA Special Publication: The Cosmic Wheel and the Legacy of the AKARI archive: from galaxies and stars to planets and life (JAXA-SP-17-009E), 317-320, 2018-03-09

    IR 

  • AKARI NEP-Deep: galaxy clustering through the AKARI IRC filters

    Pollo Agnieszka , Solarz Aleksandra , AKARI/NEP-Deep Team

    第4回「あかり」国際会議 (2017年10月17-20日. 東京大学), 文京区, 東京形態: カラー図版あり資料番号: AA1730026033

    宇宙航空研究開発機構特別資料 = JAXA Special Publication: The Cosmic Wheel and the Legacy of the AKARI archive: from galaxies and stars to planets and life (JAXA-SP-17-009E), 201-204, 2018-03-09

    IR 

  • The Mid-IR ELT Imager and Spectrograph (METIS) and its Science Goals in the Context of AKARI

    Brandl Bernhard R. , Quanz Sascha , Snellen Ignas , van Dishoeck Ewine , Pontoppidan Klaus , Le Floch Emeric , Bettonvil Felix , van Boekel Roy , Glauser Adrian , Hurtado Norma

    第4回「あかり」国際会議 (2017年10月17-20日. 東京大学), 文京区, 東京形態: カラー図版あり資料番号: AA1730026005

    宇宙航空研究開発機構特別資料 = JAXA Special Publication: The Cosmic Wheel and the Legacy of the AKARI archive: from galaxies and stars to planets and life (JAXA-SP-17-009E), 41-47, 2018-03-09

    IR 

  • Investigation of Property of Massive Star Clusters by mini-TAO, TAO and SPICA

    高橋 英則 , 田中 培生 , 奥村 真一郎 , TAOteam , Takahashi Hidenori , Tanaka Masuo , Okumura Shinichiro , TAO team

    形態: カラー図版あり資料番号: AA1730027064

    宇宙航空研究開発機構特別資料 = JAXA Special Publication: Proceedings of the SPICA Science Conference from Exoplanets to Distant Galaxies: SPICA's New Window on the Cool Universe (JAXA-SP-17-010E), 293-296, 2018-03-09

    IR 

  • Cool Dust in the Environments of Evolved Massive Stars: Wolf-Rayet Stars at High Galactic Latitudes

    Marston Anthony P.

    形態: カラー図版あり資料番号: AA1730027052

    宇宙航空研究開発機構特別資料 = JAXA Special Publication: Proceedings of the SPICA Science Conference from Exoplanets to Distant Galaxies: SPICA's New Window on the Cool Universe (JAXA-SP-17-010E), 245-247, 2018-03-09

    IR 

  • Evidence of Hot-Bottom-Burning in Extreme OH/IR Stars

    Justtanont Kay , Teyssier David , Barlow Mike , 松浦 美香子 , Swinyard Bruce , Waters L. B. F. M. , Yates Jeremy , Justtanont Kay , Teyssier David , Barlow Mike , Matsuura Mikako , Swinyard Bruce , Waters L. B. F. M. , Yates Jeremy

    形態: カラー図版あり資料番号: AA1730027049

    宇宙航空研究開発機構特別資料 = JAXA Special Publication: Proceedings of the SPICA Science Conference from Exoplanets to Distant Galaxies: SPICA's New Window on the Cool Universe (JAXA-SP-17-010E), 231-234, 2018-03-09

    IR 

  • Understanding the Role of Massive Stars on the Dusty ISM Environment in Galaxies with SPICA

    左近 樹 , 尾中 敬 , 田中 雅臣 , 野沢 貴也 , 大澤 亮 , 片坐 宏一 , Kemper Ciska , Sakon Itsuki , Onaka Takashi , Tanaka Masaomi , Nozawa Takaya , Ohsawa Ryou , Kataza Hirokazu , Kemper Ciska

    形態: カラー図版あり資料番号: AA1730027041

    宇宙航空研究開発機構特別資料 = JAXA Special Publication: Proceedings of the SPICA Science Conference from Exoplanets to Distant Galaxies: SPICA's New Window on the Cool Universe (JAXA-SP-17-010E), 191-194, 2018-03-09

    IR 

  • Death of massive stars: supernova explosions and gamma-ray bursts  [in Japanese]

    Suwa Yudai

    Meeting Abstracts of the Physical Society of Japan 73.1(0), 480-481, 2018

    J-STAGE 

  • Formation of Massive Stars and Binaries  [in Japanese]

    Tomida Kengo

    <p>現代物理のキーワード</p><p>大質量星・連星形成の理解に向けて</p>

    Butsuri 72(6), 386-387, 2017

    J-STAGE 

  • Mid- and far-infrared properties of Spitzer Galactic bubbles revealed by the AKARI all-sky surveys

    Hattori Yasuki , Kaneda Hidehiro , Ishihara Daisuke , Fukui Yasuo , Torii Kazufumi , Hanaoka Misaki , Kokusho Takuma , Kondo Akino , Shichi Kazuyuki , Ukai Sota , Yamagishi Mitsuyoshi , Yamaguchi Yuta

    … As a result, 180 sample bubbles show a wide range of total IR luminosities corresponding to the bolometric luminosities of a single B-type star to many O-type stars. … We discuss the implications of those differences for a massive star-formation scenario. …

    Publications of the Astronomical Society of Japan 68(3), 37-37, 2016-06

    IR 

  • Relativistic stars in de Rham-Gabadadze-Tolley massive gravity

    Katsuragawa Taishi , Nojiri Shin'ichi , Odintsov Sergei D. , Yamazaki Masashi

    … We study relativistic stars in the simplest model of the de Rham-Gabadadze-Tolley massive gravity which describes the massive graviton without a ghost propagating mode. … We give analytical and numerical results for quark and neutron stars and discuss the deviations compared with general relativity and F(R) gravity. …

    Physical Review D (93), 124013-124013, 2016-06

    IR 

  • Neutrino emission from nearby supernova progenitors

    Yoshida Takashi , Takahashi Koh , Umeda Hideyuki

    … Neutrinos have an important role for energy loss process during advanced evolution of massive stars. … We investigate the neutrino emission from massive stars during advanced evolution. … Observations of neutrinos from SN progenitors have a possibility to constrain the core structure and the evolution just before the core collapse of massive stars. …

    Journal of Physics: Conference Series (718), 2016-05

    IR 

  • 22pAK-5 Compact stars in massive gravity  [in Japanese]

    Katsuragawa T. , Yamazaki M. , Nojiri S. , Odintsov Sergei. D.

    Meeting Abstracts of the Physical Society of Japan 71.1(0), 70, 2016

    J-STAGE 

  • Early cosmic merger of multiple black holes

    Tagawa H. , Umemura M. , Gouda N. , Yano T. , Yamai Y. , 梅村 雅之

    … Supposing the gas and BH density based on the recent numerical simulations on first stars, all the BH remnants from first stars are likely to merge into one BH in ∼ 107 yr through the type B or C mechanism. … Also, we find that multiple massive BHs (MBH = 104 M⊙) distributed over several parsec can merge into one BH through the type B mechanism, if the gas density is higher than 5 × 106 cm−3. …

    Monthly notices of the Royal Astronomical Society 451(2), 2174-2184, 2015-08

    IR 

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