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A Spatially-resolved Study on the Processing and Destruction of Dust Grains in Local ULIRGs
https://jaxa.repo.nii.ac.jp/records/3004
https://jaxa.repo.nii.ac.jp/records/3004c3cb3f69-072d-4b0f-8279-3c02255f0527
名前 / ファイル | ライセンス | アクション |
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AA1730027027.pdf (274.6 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 | ||||||
言語 | en | |||||
タイトル | A Spatially-resolved Study on the Processing and Destruction of Dust Grains in Local ULIRGs | |||||
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 |
山田, 梨加
× 山田, 梨加× 金田, 英宏× 大薮, 進喜× 山岸, 光義× 石原, 大助× Yamada, Rika× Kaneda, Hidehiro× Oyabu, Shinki× Yamagishi, Mitsuyoshi× Ishihara, Daisuke |
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著者所属 | ||||||
名古屋大学 | ||||||
著者所属 | ||||||
名古屋大学 | ||||||
著者所属 | ||||||
名古屋大学 | ||||||
著者所属 | ||||||
名古屋大学 | ||||||
著者所属 | ||||||
名古屋大学 | ||||||
著者所属(英) | ||||||
en | ||||||
Nagoya University | ||||||
著者所属(英) | ||||||
en | ||||||
Nagoya University | ||||||
著者所属(英) | ||||||
en | ||||||
Nagoya University | ||||||
著者所属(英) | ||||||
en | ||||||
Nagoya University | ||||||
著者所属(英) | ||||||
en | ||||||
Nagoya University | ||||||
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. 121-123, 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 | A merging process in infrared (IR) galaxies plays an important role in accelerating the processing of dust grains, which may alter the properties of dust grains, e.g. the relative abundance of polycyclic aromatic hydrocarbons (PAHs) to classical grains. In fact, with AKARI, we find that the ratio of the PAH 3.3 μm to IR luminosity, L(sub PAH3.3)/L(sub IR), considerably decreases toward the luminous end of L(sub IR) greater than 10(exp11.5) solar liminosity, using the near-IR (2.5-5 μm) spectra of 100 IR galaxies without AGN signatures. We conclude that local ULIRGs intrinsically possess a smaller amount of PAHs relative to classical grains than less-luminous IR galaxies. Some fraction of PAHs may have been destroyed once by a shock during a merging process, whereas large dust grains survive, which may explain the systematically low abundance ratios of PAHs to classical grains observed for the ULIRGs. To prove this scenario, we should observe a systematic change of the ratio from an interacted region to others, or from outer to inner areas, within a galaxy. With SPICA, especially coronagraphic spectroscopy with the SCI, we can perform a spatially-resolved study of local ULIRGs in both PAH and dust emission, which will reveal the scene of the processing and destruction of dust grains with shocks during merging processes of galaxies. | |||||
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: AA1730027027 | |||||
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 |