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Resolving the Mass Loss in Red Supergiants with the Very Large Telescope Interferometer and SPICA
https://jaxa.repo.nii.ac.jp/records/3036
https://jaxa.repo.nii.ac.jp/records/3036f2c06a80-9843-457f-b737-bca6e4a60ee0
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
AA1730027059.pdf (271.6 kB)
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| Item type | 会議発表論文 / Conference Paper(1) | |||||||||
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| 公開日 | 2018-05-01 | |||||||||
| タイトル | ||||||||||
| タイトル | Resolving the Mass Loss in Red Supergiants with the Very Large Telescope Interferometer and SPICA | |||||||||
| 言語 | en | |||||||||
| 言語 | ||||||||||
| 言語 | eng | |||||||||
| 資源タイプ | ||||||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_5794 | |||||||||
| 資源タイプ | conference paper | |||||||||
| 著者 |
大仲, 圭一
× 大仲, 圭一
× Ohnaka, Keiichi
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| 著者所属（英） | ||||||||||
| en | ||||||||||
| The Max Planck Institute for Radio Astronomy | ||||||||||
| 出版者 | ||||||||||
| 出版者 | 宇宙航空研究開発機構(JAXA) | |||||||||
| 出版者（英） | ||||||||||
| 出版者 | Japan Aerospace Exploration Agency (JAXA) | |||||||||
| 書誌情報 |
宇宙航空研究開発機構特別資料 en : JAXA Special Publication: Proceedings of the SPICA Science Conference from Exoplanets to Distant Galaxies: SPICA's New Window on the Cool Universe 巻 JAXA-SP-17-010E, p. 273-275, 発行日 2018-03-09 |
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| 会議概要（会議名, 開催地, 会期, 主催者等）（英） | ||||||||||
| 内容記述タイプ | Other | |||||||||
| 内容記述 | SPICA Science Conference from Exoplanets to Distant Galaxies: SPICA's New Window on the Cool Universe (June 18-21, 2013. Ito Hall, the University of Tokyo), Bunkyou-ku, Tokyo, Japan | |||||||||
| 抄録（英） | ||||||||||
| 内容記述タイプ | Other | |||||||||
| 内容記述 | The mass-loss mechanism in red supergiants (RSGs) is one of the long-standing problems in stellar astrophysics. For solving this problem, it is crucial to probe the dynamics of the outer atmosphere. The milliarcsecond angular resolution achieved by IR long-baseline interferometry provides us with the only way to spatially resolve this key region. We present high spatial and high spectral resolution observations of the best-studied RSGs Betelgeuse and Antares in the 2.3 μm CO lines using ESO’s Very Large Telescope Interferometer (VLTI). We have succeeded in "velocity-resolved" aperturesynthesis imaging of the atmosphere of stars for the first time. This allows us to probe not only inhomogeneous structures over the surface of stars but also their kinematics, as routinely done in solar physics. We have detected vigorous upwelling and downdrafting motions of large CO gas clumps (as large as the radius of the stars) at up to 20-30 km s(exp −1) within 1.5 stellar radii. SPICA will provide a unique opportunity to probe the region farther away from the star, helping us to link the inhomogeneous, vigorous atmospheric motions to the physical properties of the circumstellar envelope. | |||||||||
| 内容記述 | ||||||||||
| 内容記述タイプ | Other | |||||||||
| 内容記述 | 形態: カラー図版あり | |||||||||
| 内容記述（英） | ||||||||||
| 内容記述タイプ | Other | |||||||||
| 内容記述 | Physical characteristics: Original contains color illustrations | |||||||||
| ISSNONLINE | ||||||||||
| 収録物識別子タイプ | ISSN | |||||||||
| 収録物識別子 | 2433-2232 | |||||||||
| 資料番号 | ||||||||||
| 内容記述タイプ | Other | |||||||||
| 内容記述 | 資料番号: AA1730027059 | |||||||||
| レポート番号 | ||||||||||
| 内容記述タイプ | Other | |||||||||
| 内容記述 | レポート番号: JAXA-SP-17-010E | |||||||||
