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  1. I200 高等研究院
  2. I200a 雑誌掲載論文
  3. 学術雑誌

The Alcock Paczynski test with voids in 21 cm intensity field

http://hdl.handle.net/2237/0002001371
http://hdl.handle.net/2237/0002001371
a7e99251-761c-4d6e-8b1b-3e976d1300e2
名前 / ファイル ライセンス アクション
staa2822.pdf staa2822.pdf (3.1 MB)
Item type itemtype_ver1(1)
公開日 2021-09-08
タイトル
タイトル The Alcock Paczynski test with voids in 21 cm intensity field
言語 en
著者 Endo, Takao

× Endo, Takao

en Endo, Takao

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Tashiro, Hiroyuki

× Tashiro, Hiroyuki

en Tashiro, Hiroyuki

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Nishizawa, Atsushi J

× Nishizawa, Atsushi J

en Nishizawa, Atsushi J

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アクセス権
アクセス権 open access
アクセス権URI http://purl.org/coar/access_right/c_abf2
権利
言語 en
権利情報 [Monthly Notices of the Royal Astronomical Society, Volume 499, Issue 1, November 2020, Pages 587–596], [The Alcock Paczynski test with voids in 21 cm intensity field] by [Takao Endo, Hiroyuki Tashiro, Atsushi J Nishizawa], [2020], reproduced by permission of Oxford University Press [https://doi.org/10.1093/mnras/staa2822]
キーワード
主題Scheme Other
主題 cosmological parameters
キーワード
主題Scheme Other
主題 large-scale structure of Universe
キーワード
主題Scheme Other
主題 cosmology: theory
内容記述
内容記述 Feasibility of the Alcock Paczynski (AP) test by stacking voids in the 21 cm line intensity field is presented. We analyse the IllustrisTNG simulation to obtain the 21 cm signal map. We then randomly distribute particles depending on the 21 cm intensity field to find voids by using publicly available code, VIDE. As in the galaxy clustering, the shape of the stacked void in the 21 cm field is squashed along the line of sight due to the peculiar velocities in redshift space, although it becomes spherical in real space. The redshift-space distortion for the stacked void weakly depends on redshift and we show that the dependency can be well described by the linear prediction, with the amplitude of the offset being free parameters. We find that the AP test using the stacked voids in a 21 cm intensity map is feasible and the parameter estimation on Ωm and w is unbiased.
言語 en
内容記述タイプ Abstract
出版者
言語 en
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
出版タイプ
出版タイプ VoR
出版タイプResource http://purl.org/coar/version/c_970fb48d4fbd8a85
関連情報
関連タイプ isVersionOf
識別子タイプ DOI
関連識別子 https://doi.org/10.1093/mnras/staa2822
収録物識別子
収録物識別子タイプ PISSN
収録物識別子 0035-8711
書誌情報 en : Monthly Notices of the Royal Astronomical Society

巻 499, 号 1, p. 587-596, 発行日 2020-11
ファイル公開日
日付 2021-09-08
日付タイプ Available
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