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  1. B100 理学部/理学研究科
  2. B100a 雑誌掲載論文
  3. 学術雑誌

A search for the lenses in the Herschel Bright Sources (HerBS) sample

http://hdl.handle.net/2237/00032529
16062c1a-184e-4a92-875e-43e7a7d8de80
名前 / ファイル ライセンス アクション
staa506.pdf staa506 (7.0 MB)
Item type 学術雑誌論文 / Journal Article(1)
公開日 2020-07-31
タイトル
タイトル A search for the lenses in the Herschel Bright Sources (HerBS) sample
著者 Bakx, Tom J L C

× Bakx, Tom J L C

WEKO 100726

Bakx, Tom J L C

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Eales, Stephen

× Eales, Stephen

WEKO 100727

Eales, Stephen

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Amvrosiadis, Aristeidis

× Amvrosiadis, Aristeidis

WEKO 100728

Amvrosiadis, Aristeidis

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権利
権利情報 This article has been accepted for publication in [Monthly Notices of the Royal Astronomical Society] ©: [2020] [authors] Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved.
キーワード
主題Scheme Other
主題 gravitational lensing: strong
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 submillimetre: galaxies
抄録
内容記述 Verifying that sub-mm galaxies are gravitationally lensed requires time-expensive observations with oversubscribed high-resolution observatories. Here, we aim to strengthen the evidence of gravitational lensing within the Herschel Bright Sources (HerBS) by cross-comparing their positions to optical (SDSS) and near-infrared (VIKING) surveys, in order to search for the foreground lensing galaxy candidates. Resolved observations of the brightest HerBS sources have already shown that most are lensed, and a galaxy evolution model predicts that ∼76 per cent of the total HerBS sources are lensed, although with the SDSS survey we are only able to identify the likely foreground lenses for 25 per cent of the sources. With the near-infrared VIKING survey, however, we are able to identify the likely foreground lenses for 57 per cent of the sources, and we estimate that 82 per cent of the HerBS sources have lenses on the VIKING images even if we cannot identify the lens in every case. We find that the angular offsets between lens and Herschel source are larger than that expected if the lensing is done by individual galaxies. We also find that the fraction of HerBS sources that are lensed falls with decreasing 500-micron flux density, which is expected from the galaxy evolution model. Finally, we apply our statistical VIKING cross-identification to the entire Herschel-ATLAS catalogue, where we also find that the number of lensed sources falls with decreasing 500-micron flux density.
内容記述タイプ Abstract
出版者
出版者 Oxford University Press
言語
言語 eng
資源タイプ
資源タイプresource http://purl.org/coar/resource_type/c_6501
タイプ journal article
DOI
関連識別子
識別子タイプ DOI
関連識別子 https://doi.org/10.1093/mnras/staa506
ISSN(print)
収録物識別子タイプ ISSN
収録物識別子 0035-8711
書誌情報 Monthly Notices of the Royal Astronomical Society

巻 493, 号 3, p. 4276-4293, 発行日 2020-04
著者版フラグ
値 publisher
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