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  1. 100 全学教育機構
  2. 1001 学術論文

Exploratory study of the X-ray properties of quasars with intrinsic narrow absorption lines

http://hdl.handle.net/10091/10122
http://hdl.handle.net/10091/10122
b0bb1226-d855-4a95-817b-127eefea2026
名前 / ファイル ライセンス アクション
ApJ_677_863.pdf ApJ_677_863.pdf (849.1 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 Exploratory study of the X-ray properties of quasars with intrinsic narrow absorption lines
言語
言語 eng
キーワード
主題Scheme Other
主題 galaxies : active
キーワード
主題Scheme Other
主題 galaxies : nuclei
キーワード
主題Scheme Other
主題 quasars : absorption lines
キーワード
主題Scheme Other
主題 X-rays : galaxies
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 45978

Misawa, T

Search repository
Eracleous, M

× Eracleous, M

WEKO 45979

Eracleous, M

Search repository
Chartas, G

× Chartas, G

WEKO 45980

Chartas, G

Search repository
Charlton, JC

× Charlton, JC

WEKO 45981

Charlton, JC

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. 677:863-879 (2008)
書誌情報 The Astrophysical Journal

巻 677, 号 2, p. 863-879, 発行日 2008-04-20
抄録
内容記述タイプ Abstract
内容記述 We have used archival Chandra and XMM- Newton observations of quasars hosting intrinsic narrow UV absorption lines (intrinsic NALs) to carry out an exploratory survey of their X- ray properties. Our sample consists of three intrinsic NAL quasars and one '' mini- BAL'' quasar, plus four quasars without intrinsic absorption lines for comparison. These were drawn in a systematic manner from an optical / UV- selected sample. The X- ray properties of intrinsic NAL quasars are indistinguishable from those of ''normal'' quasars. We do not find any excess absorption in quasars with intrinsic NALs, with upper limits of NH less than or similar to few x 10(22) cm(-2). We compare the X- ray and UV properties of our sample quasars by plotting the equivalent width and blueshift velocity of the intrinsic NALs and the X- ray spectral index against the `` optical - to - X- ray'' slope, alpha(ox). When BAL quasars and other AGNs with intrinsic NALs are included, the plots suggest that intrinsic NAL quasars form an extension of the BAL sequences and tend to bridge the gap between BAL and normal quasars. Observations of larger samples of intrinsic NAL quasars are needed to verify these conclusions. We also test two competing scenarios for the location of the NAL gas in an accretion disk wind. Our results strongly support a location of the NAL gas at high latitudes above the disk, closer to the disk axis than the dense BAL wind. We detect excess X- ray absorption only in Q0014+ 8118, which does not host intrinsic NALs. The absorbing medium very likely corresponds to an intervening system at z = 1.1, which also produces strong absorption lines in the rest- frame UV spectrum of this quasar. In an appendix we discuss the connection between UV and X- ray attenuation and its effect on alpha(ox).
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/10.1086/529426
関連名称 10.1086/529426
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=000254898000005
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