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  1. 100 全学教育機構
  2. 1001 学術論文

MONITORING THE VARIABILITY OF INTRINSIC ABSORPTION LINES IN QUASAR SPECTRA

http://hdl.handle.net/10091/18075
4a30bbae-16ff-413e-b1fe-bd04086d57bb
名前 / ファイル ライセンス アクション
MONITORING_THE_VARIABILITY_OF_INTRINSIC.pdf MONITORING_THE_VARIABILITY_OF_INTRINSIC.pdf (4.1 MB)
Item type 学術雑誌論文 / Journal Article(1)
公開日 2015-02-09
タイトル
言語 en
タイトル MONITORING THE VARIABILITY OF INTRINSIC ABSORPTION LINES IN QUASAR SPECTRA
言語
言語 eng
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 quasars
キーワード
主題Scheme Other
主題 HE0130-4021
キーワード
主題Scheme Other
主題 HE0940-1050
キーワード
主題Scheme Other
主題 Q1009+2956
キーワード
主題Scheme Other
主題 HS1700+6416
キーワード
主題Scheme Other
主題 HS1946+7658
キーワード
主題Scheme Other
主題 Q2343+125
キーワード
主題Scheme Other
主題 UM675
キーワード
主題Scheme Other
主題 Q1157+014
キーワード
主題Scheme Other
主題 HE1341-1020
キーワード
主題Scheme Other
主題 HE0151-4326
キーワード
主題Scheme Other
主題 HS1603+3820
資源タイプ
資源 http://purl.org/coar/resource_type/c_6501
タイプ journal article
著者 Misawa, Toru

× Misawa, Toru

WEKO 45849

Misawa, Toru

Search repository
Charlton, Jane C

× Charlton, Jane C

WEKO 45850

Charlton, Jane C

Search repository
Eracleous, Michael

× Eracleous, Michael

WEKO 45851

Eracleous, Michael

Search repository
信州大学研究者総覧へのリンク
氏名 Misawa, Toru
URL http://soar-rd.shinshu-u.ac.jp/profile/ja.ypchuUkV.html
出版者
出版者 IOP PUBLISHING LTD
引用
内容記述タイプ Other
内容記述 ASTROPHYSICAL JOURNAL. 792(1):77 (2014)
書誌情報 The Astrophysical Journal

巻 792, 号 1, p. 77, 発行日 2014-09-01
抄録
内容記述タイプ Abstract
内容記述 We have monitored 12 intrinsic narrow absorption lines (NALs) in five quasars and seven mini-broad absorption lines (mini-BALs) in six quasars for a period of 4-12 yr (1-3.5 yr in the quasar rest-frame). We present the observational data and the conclusions that follow immediately from them, as a prelude to a more detailed analysis. We found clear variability in the equivalent widths (EWs) of the mini-BAL systems but no easily discernible changes in their profiles. We did not detect any variability in the NAL systems or in narrow components that are often located at the center of mini-BAL profiles. Variations in mini-BAL EWs are larger at longer time intervals, reminiscent of the trend seen in variable BALs. If we assume that the observed variations result from changes in the ionization state of the mini-BAL gas, we infer lower limits to the gas density ~103-105 cm–3 and upper limits on the distance of the absorbers from the central engine of the order of a few kiloparsecs. Motivated by the observed variability properties, we suggest that mini-BALs can vary because of fluctuations of the ionizing continuum or changes in partial coverage while NALs can vary primarily because of changes in partial coverage.
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 AA00553242
DOI
関連識別子
識別子タイプ DOI
関連識別子 https://doi.org/10.1088/0004-637X/792/1/77
関連名称
関連名称 10.1088/0004-637X/792/1/77
権利
権利情報 © 2014. The American Astronomical Society. All rights reserved.
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=000341172100077
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