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Chemical Evolution and Far-Infrared Emission of Galaxies
https://jaxa.repo.nii.ac.jp/records/36665
https://jaxa.repo.nii.ac.jp/records/366655717416c-9139-4cb7-8244-b95bb8020107
名前 / ファイル | ライセンス | アクション |
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SA4588073.pdf (235.3 kB)
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Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
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公開日 | 2015-03-26 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Chemical Evolution and Far-Infrared Emission of Galaxies | |||||
言語 | ||||||
言語 | jpn | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | departmental bulletin paper | |||||
著者 |
HIRASHITA, Hiroyuki
× HIRASHITA, Hiroyuki× INOUE, Akio K.× KAMAYA, Hideyuki |
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著者所属(英) | ||||||
en | ||||||
Department of Astronomy, Faculty of Science, Kyoto University | ||||||
著者所属(英) | ||||||
en | ||||||
Department of Astronomy, Faculty of Science, Kyoto University | ||||||
著者所属(英) | ||||||
en | ||||||
Department of Astronomy, Faculty of Science, Kyoto University | ||||||
出版者 | ||||||
出版者 | 宇宙科学研究所 | |||||
出版者(英) | ||||||
出版者 | Institute of Space and Astronautical Science | |||||
書誌情報 |
en : The Institute of Space and Astronautical Science report. S.P. : Mid- and Far-Infrared Astronomy and Future Space Mission 巻 14, p. 115-122, 発行日 2000-12 |
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抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | Infrared (IR) dust emission from galaxies is frequently used as an indicator of starformation rate (SFR). However, the effect of dust-to-gas ratio, or amount of dust, on the con-version law from IR luminosity to SFR has not been considered. In this paper, we present aconvenient formula including the effect. In order to obtain the dependence of the dust-to-gasratio, we extend the formula derived in our previous paper, in which a theoretical formula con-verting IR luminosity to SFR was derived. That formula was expressed as SFR=(M yr-1) ={3.3 ×10-10(1-η)/(0.4 - 0.2f + 0.6ε)}(LIR=L), where f is the fraction of ionizing photons ab-sorbed by hydrogen, εis the effciency of dust absorption for nonionizing photons, ηis the cirrusfraction of observed dust luminosity, and LIR is the observed luminosity of dust emission in the8-1000-μm range. Throughout the current discussion, we construct an algorithm to relate f andε, both of which depend on the dust-to-gas ratio, to the metallicity, by adopting a galactic relationbetween dust-to-gas ratio and metallicity. Thus, we estimate the metallicity dependence of ourformula. We apply the result to the cosmic star formation history and find that the comoving SFRat z ~ 3 calculated from previous empirical formulae is underestimated by the factor of 4. Finally,we comment on the HII/L2 mission (SPICA). | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0288-433X | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA10455137 | |||||
資料番号 | ||||||
内容記述タイプ | Other | |||||
内容記述 | 資料番号: SA4588073000 |