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  1. 100 全学教育機構
  2. 1001 学術論文

A SPECTROPOLARIMETRIC TEST OF THE STRUCTURE OF THE INTRINSIC ABSORBERS IN THE QUASAR HS 1603+3820*

http://hdl.handle.net/10091/10714
23e44b6a-1de3-41ad-956c-fa3a8c8f876a
名前 / ファイル ライセンス アクション
SPECTROPOLARIMETRIC_TEST_STRUCTURE.pdf SPECTROPOLARIMETRIC_TEST_STRUCTURE.pdf (581.8 kB)
Item type 学術雑誌論文 / Journal Article(1)
公開日 2010-10-19
タイトル
言語 en
タイトル A SPECTROPOLARIMETRIC TEST OF THE STRUCTURE OF THE INTRINSIC ABSORBERS IN THE QUASAR HS 1603+3820*
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: individual (HS 1603+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 45933

Misawa, Toru

Search repository
Kawabata, Koji S.

× Kawabata, Koji S.

WEKO 45934

Kawabata, Koji S.

Search repository
Eracleous, Michael

× Eracleous, Michael

WEKO 45935

Eracleous, Michael

Search repository
Charlton, Jane C.

× Charlton, Jane C.

WEKO 45936

Charlton, Jane C.

Search repository
Kashikawa, Nobunari

× Kashikawa, Nobunari

WEKO 45937

Kashikawa, Nobunari

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 The Astrophysical Journal. 719(2):1890-1895 (2010)
書誌情報 The Astrophysical Journal

巻 719, 号 2, p. 1890-1895, 発行日 2010-08-20
抄録
内容記述タイプ Abstract
内容記述 We report the results of a spectropolarimetric observation of the C VI "mini-broad" absorption line (mini-BAL) in the quasar HS 1603+3820 (z(em) = 2.542). The observations were carried out with the FOCAS instrument on the Subaru Telescope and yielded an extremely high polarization sensitivity of delta(p) similar to 0.1%, at a resolving power of R similar to 1500. HS 1603+3820 has been the target of a high-resolution spectroscopic monitoring campaign for more than four years, aimed at studying its highly variable C VI mini-BAL profile. Using the monitoring observations in an earlier paper, we were able to narrow down the causes of the variability to the following two scenarios: (1) scattering material of variable optical depth redirecting photons around the absorber and (2) a variable, highly ionized screen between the continuum source and the absorber which modulates the UV continuum incident on the absorber. The observations presented here provide a crucial test of the scattering scenario and lead us to disfavor it because (1) the polarization level is very small (p similar to 0.6%) throughout the spectrum and (2) the polarization level does not increase across the mini-BAL trough. Thus, the variable screen scenario emerges as our favored explanation of the C VI mini-BAL variability. Our conclusion is bolstered by recent X-ray observations of nearby mini-BAL quasars, which show a rapidly variable soft X-ray continuum that appears to be the result of transmission through an ionized absorber of variable ionization parameter and optical depth.
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/10.1088/0004-637X/719/2/1890
関連名称
関連名称 10.1088/0004-637X/719/2/1890
権利
権利情報 Copyright (c) 2010 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=000280658000068
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