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  1. 100 全学教育機構
  2. 1001 学術論文

Results of monitoring the dramatically variable CIV mini-broad absorption line system in the quasar HS 1603+3820

http://hdl.handle.net/10091/10120
bbe2e246-a8fa-425d-bf18-946ab9e26a00
名前 / ファイル ライセンス アクション
ApJ_660_152.pdf ApJ_660_152.pdf (971.6 kB)
Item type 学術雑誌論文 / Journal Article(1)
公開日 2010-06-03
タイトル
言語 en
タイトル Results of monitoring the dramatically variable CIV mini-broad absorption line system in the quasar HS 1603+3820
言語
言語 eng
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 45988

Misawa, T

Search repository
Eracleous, M

× Eracleous, M

WEKO 45989

Eracleous, M

Search repository
Charlton, JC

× Charlton, JC

WEKO 45990

Charlton, JC

Search repository
Kashikawa, N

× Kashikawa, N

WEKO 45991

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 The American Astronomical Society
引用
内容記述タイプ Other
内容記述 The Astrophysical Journal. 660:152-166 (2007)
書誌情報 The Astrophysical Journal

巻 660, 号 1, p. 152-166, 発行日 2007-05-01
抄録
内容記述タイプ Abstract
内容記述 We present six new and two previously published high-resolution spectra of the quasar HS 1603+3820 (z(em) = 2: 542) taken over an interval of 4.2 yr (1.2 yr in the quasar rest frame). The observations were made with the High Dispersion Spectrograph on the Subaru telescope and the Medium Resolution Spectrograph on the Hobby-Eberly Telescope. The purpose was to study the narrow absorption lines (NALs). We use time variability and coverage fraction analysis to separate intrinsic absorption lines, which are physically related to the quasar, from intervening absorption lines. By fitting models to the line profiles, we derive the parameters of the respective absorbers as a function of time. Only the mini-BAL system at z(abs) similar to 2.43 (v(shift) similar to 9500 km s(-1)) shows both partial coverage and time variability, although two NAL systems possibly show evidence of partial coverage. We find that all the troughs of the mini-BAL system vary in concert and its total equivalent width variations resemble those of the coverage fraction. However, no other correlations are seen between the variations of different model parameters. Thus, the observed variations cannot be reproduced by a simple change of ionization state or by motion of a homogeneous parcel of gas across the cylinder of sight. We propose that the observed variations are a result of rapid continuum fluctuations, coupled with coverage fraction fluctuations caused by a clumpy screen of variable optical depth located between the continuum source and the mini-BAL gas. An alternative explanation is that the observed partial coverage signature is the result of scattering of continuum photons around the absorber, thus the equivalent width of the mini-BAL can vary as the intensity of the scattered continuum changes.
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
関連識別子
識別子タイプ DOI
関連識別子 https://doi.org/10.1086/513097
関連名称
関連名称 10.1086/513097
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=000246108700010
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