Extinction Curves as a Probe of High-Redshift Metal Enrichment

Hirashita, H.; Nozawa, T.; Kozasa, T.; Takeuchi, T. T.

Extinction Curves as a Probe of High-Redshift Metal Enrichment

Hirashita, H.; Nozawa, T.; Kozasa, T. et al.

Astronomical Society of the Pacific conference series, 2008, 399, 201-202

Permalink : https://hdl.handle.net/2115/60382

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アクセス権	open access
URI	https://hdl.handle.net/2115/60382
タイトル	Extinction Curves as a Probe of High-Redshift Metal Enrichment
著者	Hirashita, H. ; Nozawa, T. ; Kozasa, T. ; Takeuchi, T. T.
著者名 Hirashita, H.
著者名 Nozawa, T.
e-Rad_Researcher 90263368 著者名 Kozasa, T.
著者名 Takeuchi, T. T.
言語	英語
発行日	2008
出版者	Astronomical Society of the Pacific
収録物名	Astronomical Society of the Pacific conference series
巻(号)	399
ページ	201-202
記述	The 1st Subaru International Conference "Panoramic Views of Galaxy Formation and Evolution". 11-16 December 2007. Shonan Village Center, Hayama, Japan.
抄録	We use extinction curves of high-z (z > 5) galaxies to probe the metal enrichment in the early universe. Since at high z (> 5), low-mass stars cannot be dominant sources for dust grains, Type II supernovae (SNe II) and pair instability supernovae (PISNe), whose progenitors are massive stars with short lifetimes, should govern the dust production. Here, we investigate the theoretical extinction curves of dust produced in SNe II and PISNe. We find that the hypothesis that the dust is predominantly formed by SNe at z = 6 is still allowed by the current observational constraints.
会議記述	会議名 Subaru International Conference "Panoramic Views of Galaxy Formation and Evolution" 回次 1 開催地 Hayama 開催国 Japan
資源タイプ	会議発表論文
出版タイプ	Version of Record
関連情報 (isPartOf)	Title Panoramic views of galaxy formation and evolution. Edited by Tadayuki Kodama, Toru Yamada, and Kentaro Aoki. ISBN: 978-1-58381-668-4