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  1. 100 全学教育センター
  2. 1001 学術論文

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/10091/10121
837590c0-7570-479d-bb3d-19c133d50c2e
名前 / ファイル ライセンス アクション
ApJ_663_765.pdf ApJ_663_765.pdf (948.8 kB)
Item type 学術雑誌論文 / Journal Article(1)
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

WEKO 45982

Kashikawa, N

Search repository
Kitayama, T

× Kitayama, T

WEKO 45983

Kitayama, T

Search repository
Doi, M

× Doi, M

WEKO 45984

Doi, M

Search repository
Misawa, T

× Misawa, T

WEKO 45985

Misawa, T

Search repository
Komiyama, Y

× Komiyama, Y

WEKO 45986

Komiyama, Y

Search repository
Ota, K

× Ota, K

WEKO 45987

Ota, K

Search repository
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
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
URL http://gateway.isiknowledge.com/gateway/Gateway.cgi?&GWVersion=2&SrcAuth=ShinshuUniv&SrcApp=ShinshuUniv&DestLinkType=FullRecord&DestApp=WOS&KeyUT=000248001500006
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