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  1. 100 全学教育機構
  2. 1001 学術論文

HI gas in higher density regions of the intergalactic medium

http://hdl.handle.net/10091/17259
http://hdl.handle.net/10091/17259
d154afe0-d8bd-4684-92b6-a09c7c457210
名前 / ファイル ライセンス アクション
2004_AJ_128_2954.pdf 2004_AJ_128_2954.pdf (915.9 kB)
Item type 学術雑誌論文 / Journal Article(1)
公開日 2013-12-02
タイトル
言語 en
タイトル HI gas in higher density regions of the intergalactic medium
言語
言語 eng
キーワード
主題Scheme Other
主題 galaxies : ISM
キーワード
主題Scheme Other
主題 intergalactic medium
キーワード
主題Scheme Other
主題 quasars : absorption lines
資源タイプ
資源 http://purl.org/coar/resource_type/c_6501
タイプ journal article
著者 Misawa, T

× Misawa, T

WEKO 45878

Misawa, T

Search repository
Tytler, D

× Tytler, D

WEKO 45879

Tytler, D

Search repository
Iye, M

× Iye, M

WEKO 45880

Iye, M

Search repository
Paschos, P

× Paschos, P

WEKO 45881

Paschos, P

Search repository
Norman, M

× Norman, M

WEKO 45882

Norman, M

Search repository
Kirkman, D

× Kirkman, D

WEKO 45883

Kirkman, D

Search repository
O'Meara, J

× O'Meara, J

WEKO 45884

O'Meara, J

Search repository
Suzuki, N

× Suzuki, N

WEKO 45885

Suzuki, N

Search repository
Kashikawa, N

× Kashikawa, N

WEKO 45886

Kashikawa, N

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 UNIV CHICAGO PRESS
引用
内容記述タイプ Other
内容記述 ASTRONOMICAL JOURNAL. 128(6):2954-2961 (2004)
書誌情報 ASTRONOMICAL JOURNAL

巻 128, 号 6, p. 2954-2961, 発行日 2004-12
抄録
内容記述タイプ Abstract
内容記述 Using H I absorption alone, we attempt to separate H I absorption lines in quasar spectra into two categories: higher density lines (HDLs) and lower density lines (LDLs), and we discuss the difference in their physical properties. We deblend and fit all H I lines with Voigt profiles and make an unbiased sample of H I lines covering a wide column density range (12<log N-H I [cm(-2)]<19). To reduce the influence of line blending, we simultaneously fit several Lyman series lines. As a result of a two-point correlation analysis, we found that higher column density H I lines are clustering at Deltav<200 km s(-1), whereas lower ones cluster at &UDelta;v<100 km s(-1). We define HDLs as H I lines with 15<log N-H I<19 and all H I lines within 200 km s(-1) of a line with log N-H I>15 and LDLs as all others with 12<log N-H I<15. We found that the HDLs have smaller minimum b-values for a given column density than the LDLs. This difference is successfully reproduced by our hydrodynamic simulation. The LDLs seem to be cool or shock-heated diffuse intergalactic medium gas, whereas the HDLs are likely to be cooler dense gas near to galaxies.
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 0004-6256
書誌レコードID
収録物識別子タイプ NCID
収録物識別子 AA00552749
DOI
識別子タイプ DOI
関連識別子 https://doi.org/10.1086/425879
関連名称 10.1086/425879
権利
権利情報 Copyright© 2004 The American Astronomical Society
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=000225417500029
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