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A new approach to study dust in the haloes of nearby galaxies using mid-infrared extinction in the AKARI/IRC 7 and 11 micrometers bands
https://jaxa.repo.nii.ac.jp/records/3133
https://jaxa.repo.nii.ac.jp/records/3133268f2d88-952d-4744-ad98-15958a8f8efb
名前 / ファイル | ライセンス | アクション |
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AA1730026059.pdf (962.7 kB)
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Item type | 会議発表論文 / Conference Paper(1) | |||||
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公開日 | 2018-05-18 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | A new approach to study dust in the haloes of nearby galaxies using mid-infrared extinction in the AKARI/IRC 7 and 11 micrometers bands | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | galaxies: spiral | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | galaxies: ISM | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Galaxy: halo | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | ISM: dust | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | ISM: extinction | |||||
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 |
岡部, 愛
× 岡部, 愛× 金田, 英宏× 山岸, 光義× 鈴木, 仁研× 鵜飼, 壮太× Okabe, Megumi× Kaneda, Hidehiro× Yamagishi, Mitsuyoshi× Suzuki, Toyoaki× Ukai, Sota |
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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 | ||||||
宇宙航空研究開発機構宇宙科学研究所(JAXA)(ISAS) | ||||||
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 | ||||||
Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA)(ISAS) | ||||||
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: The Cosmic Wheel and the Legacy of the AKARI archive: from galaxies and stars to planets and life 巻 JAXA-SP-17-009E, p. 309-312, 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) | ||||||
内容記述タイプ | Other | |||||
内容記述 | 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 | |||||
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 | The 4th AKARI International Conference: The Cosmic Wheel and the Legacy of the AKARI archive: from galaxies and stars to planets and life (October 17-20, 2017. The University of Tokyo), Bunkyo-ku, Tokyo, Japan | |||||
抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | Dust in the haloes of galaxies plays a vital role in understanding the circulation of matters on galactic scales. Despite the importance, it is difficult to detect the dust emission from the galactic haloes, even if present, due to the lack of efficient heating sources in the haloes. Here, we propose a new approach to study dust in the haloes of nearby galaxies by observing the 9.7-micrometers silicate absorption feature with the AKARI/IRC-S7 (7 micrometers) and S11 (11 micrometers) bands. We analyzed the data of the 5 nearby galaxies with moderately large inclination angles, NGC 2403, NGC 1313, NGC 6496, NGC 6951 and M 51. As a result, all the sample galaxies show the gradients of I(7)/I(11) toward the expected directions with respect to the disks. From the I(7)/I(11) maps, we estimate the masses of dust in the haloes, assuming that the dust-extinction-corrected I(7)/I(11) ratios do not have large-scale gradients over the disks of the galaxies. The result suggests that a surprisingly large amount of dust may exist in the haloes 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: AA1730026059 | |||||
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-17-009E |