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titleInterstellar dust and polycyclic aromatic hydrocarbons unveiled by AKARI near-infrared spectroscopy
Author(eng)Seok, Ji Yeon
Author Affiliation(eng)National Astronomical Observatories, Chinese Academy of Sciences
Issue Date2018-03-09
PublisherJapan Aerospace Exploration Agency (JAXA)
Publication titleJAXA Special Publication: The Cosmic Wheel and the Legacy of the AKARI archive: from galaxies and stars to planets and life
Start page107
End page114
Publication date2018-03-09
AbstractSpectral features from gas and dust in the various interstellar environment residing at 2 to 5 micrometers have been unveiled thanks to high-sensitivity spectroscopy achieved by the infrared camera (IRC) on board AKARI. The well-known emission feature at 3.3 micrometers, commonly attributed to polycyclic aromatic hydrocarbons (PAHs) as well as other minor features such as the aliphatic emission band at 3.43 micrometers were detected from diverse physical conditions, including HII regions, supernova remnants, and starburst galaxies. These features are also commonly observed in protoplanetary disks (PPDs) around Herbig Ae/Be and T Tauri stars over wide evolutionary phases. The aromatic/aliphatic features are often used as a diagnostic tool of the physical and chemical conditions of their surroundings. In this review, the key contributions made by AKARI near-infrared spectroscopy are discussed with special attention paid to the interstellar dust and PAHs.
DescriptionMeeting Information: 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
Physical characteristics: Original contains color illustrations
会議情報: 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
Document TypeConference Paper
JAXA Category特別資料
NASA Subject CategoryAstronomy
Report NoJAXA-SP-17-009E

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