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The habitat segregation between Lyman break galaxies and Ly alpha emitters around a QSO at z similar to 5
http://hdl.handle.net/10091/10121
http://hdl.handle.net/10091/10121837590c0-7570-479d-bb3d-19c133d50c2e
名前 / ファイル | ライセンス | アクション |
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2010-06-04 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | The habitat segregation between Lyman break galaxies and Ly alpha emitters around a QSO at z similar to 5 | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | cosmology : observations | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | galaxies : high-redshift | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | large-scale structure of universe | |||||
資源タイプ | ||||||
資源 | http://purl.org/coar/resource_type/c_6501 | |||||
タイプ | journal article | |||||
著者 |
Kashikawa, N
× Kashikawa, N× Kitayama, T× Doi, M× Misawa, T× Komiyama, Y× Ota, K |
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信州大学研究者総覧へのリンク | ||||||
氏名 | Misawa, T | |||||
URL | http://soar-rd.shinshu-u.ac.jp/profile/ja.ypchuUkV.html | |||||
出版者 | ||||||
出版者 | The American Astronomical Society | |||||
引用 | ||||||
内容記述タイプ | Other | |||||
内容記述 | The Astrophysical Journal. 663:765-773 (2007) | |||||
書誌情報 |
The Astrophysical Journal 巻 663, 号 2, p. 765-773, 発行日 2007-07-10 |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | We carried out a target survey for Lyman break galaxies ( LBGs) and Ly alpha emitters ( LAEs) around QSO SDSS J0211- 0009 at z= 4. 87. The deep and wide broadband and narrowband imaging simultaneously revealed the perspective structure of these two high- z populations. The LBGs without Ly alpha emission form a filamentary structure including the QSO, while the LAEs are distributed around the QSO but avoid it within a distance of similar to 4.5Mpc. On the other hand, we serendipitously discovered a protocluster with a significant concentration of LBGs and LAEs, where no strongly UVionizing source, such as a QSO or radio galaxy, is known to exist. In this cluster field, the two populations are spatially cross- correlated with each other. The relative spatial distribution of LAEs to LBGs in the QSO field is in stark contrast to that in the cluster field. We also found a weak trend showing that the number counts based on Ly alpha and UV continuum fluxes of LAEs in the QSO field are slightly lower than in the cluster field, whereas the number counts of LBGs are almost consistent with each other. The LAEs avoid the nearby region around the QSO where the local UV background radiation could be similar to 100 times stronger than the average for the epoch. The clustering segregation between LBGs and LAEs seen in the QSO field could be due to either enhanced early galaxy formation in an overdense environment, causing all the LAEs to evolve into LBGs, or local photoionization due to the strong UV radiation from the QSO, effectively causing a deficit in low- mass galaxies like LAEs. | |||||
資源タイプ(コンテンツの種類) | ||||||
内容記述タイプ | Other | |||||
内容記述 | Article | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0004-637X | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA00553253 | |||||
DOI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | https://doi.org/10.1086/518410 | |||||
関連名称 | 10.1086/518410 | |||||
出版タイプ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
WoS | ||||||
表示名 | Web of Science | |||||
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