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Galaxy luminosity function and its cosmological evolution: testing a new feedback model depending on galaxy-scale dust opacity
http://hdl.handle.net/10069/34497
http://hdl.handle.net/10069/3449757f5df24-aed1-4404-b014-c9af7468ab1c
名前 / ファイル | ライセンス | アクション |
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MNRAS441_63.pdf (2.3 MB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2014-06-20 | |||||
タイトル | ||||||
タイトル | Galaxy luminosity function and its cosmological evolution: testing a new feedback model depending on galaxy-scale dust opacity | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Cosmology | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | theory | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Galaxies | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | evolution | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Galaxies | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | formation | |||||
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 | journal article | |||||
著者 |
Makiya, Ryu
× Makiya, Ryu× Totani, Tomonori× Kobayashi, M. A R× Nagashima, Masahiro× Takeuchi, Tomotake |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | We present a new version of a semi-analytic model of cosmological galaxy formation, incorporating a star formation law with a feedback depending on the galaxy-scale mean dust opacity and metallicity, motivated by recent observations of star formation in nearby galaxies and theoretical considerations. This new model is used to investigate the effect of such a feedback on shaping the galaxy luminosity function and its evolution. Star formation activity is significantly suppressed in dwarf galaxies by the new feedback effect, and the faint-end slope of local luminosity functions can be reproduced with a reasonable strength of supernova feedback, which is in contrast to the previous models that require a rather extreme strength of supernova feedback. Our model can also reproduce the early appearance of massive galaxies manifested in the bright-end of high-redshift K-band luminosity functions. Though some of the previous models also succeeded in reproducing this, they assumed a star formation law depending on the galaxy-scale dynamical time, which is not supported by observations. We argue that the feedback depending on dust opacity (or metal column density) is essential, rather than that simply depending on gas column density, to get these results. | |||||
書誌情報 |
Monthly Notices of the Royal Astronomical Society 巻 441, 号 1, p. 63-72, 発行日 2014-05 |
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出版者 | ||||||
出版者 | Royal Astronomical Society, 441(1), pp.63-72; 2014 | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 00358711 | |||||
EISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 13652966 | |||||
DOI | ||||||
関連タイプ | isIdenticalTo | |||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1093/mnras/stu561 | |||||
権利 | ||||||
権利情報 | This article has been accepted for publication in Monthly Notices of the Royal Astronomical Society c 2014 Makiya, R. et al. Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved. | |||||
著者版フラグ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
引用 | ||||||
内容記述タイプ | Other | |||||
内容記述 | Monthly Notices of the Royal Astronomical Society |