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Polarization of Mid-infrared Emission from Polycyclic Aromatic Hydrocarbons
https://jaxa.repo.nii.ac.jp/records/3088
https://jaxa.repo.nii.ac.jp/records/30881b24bc65-2915-45b3-8cbf-219416cda9df
名前 / ファイル | ライセンス | アクション |
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AA1730026014.pdf (304.4 kB)
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Item type | 会議発表論文 / Conference Paper(1) | |||||
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公開日 | 2018-05-16 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Polarization of Mid-infrared Emission from Polycyclic Aromatic Hydrocarbons | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | ISM | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Polarization | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | infrared emission | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | polycyclic aromatic hydrocarbon | |||||
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 |
Hoang, Thiem
× Hoang, Thiem |
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著者所属(英) | ||||||
en | ||||||
Korea Astronomy and Space Science Institute : Korea University of Science and technology | ||||||
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. 103-106, 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 | Polarized emission from polycyclic aromatic hydrocarbons (PAHs) is important for testing the basic physics of the alignment of ultrasmall grains and potentially offers a new way to trace magnetic fields. In this talk, a new model of polarized PAH emission is presented, taking into account the effect of PAH alignment with the magnetic field. The polarization level of PAH emission features, for the different phases of the ISM is discussed. We find that negatively charged smallest PAHs in the reflection nebula can be excited to slightly suprathermal rotation due to enhanced ion collisional excitation, which enhance the polarization level. The polarization level and polarization angle predicted by our new model are supported by the first detection of the polarization at 11.3 micrometers PAH feature from MWC 1080 nebula by Zhang et al. (2017). Thus, the mid-IR polarization would become a new probe for the magnetic fields from the surface layer of circumstellar disks. | |||||
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: AA1730026014 | |||||
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 |