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MONITORING THE VARIABILITY OF INTRINSIC ABSORPTION LINES IN QUASAR SPECTRA
http://hdl.handle.net/10091/18075
http://hdl.handle.net/10091/180754a30bbae-16ff-413e-b1fe-bd04086d57bb
| 名前 / ファイル | ライセンス | アクション |
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MONITORING_THE_VARIABILITY_OF_INTRINSIC.pdf (4.1 MB)
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| Item type | 学術雑誌論文 / Journal Article(1) | |||||||||||
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| 公開日 | 2015-02-09 | |||||||||||
| タイトル | ||||||||||||
| タイトル | MONITORING THE VARIABILITY OF INTRINSIC ABSORPTION LINES IN QUASAR SPECTRA | |||||||||||
| 言語 | ||||||||||||
| 言語 | eng | |||||||||||
| DOI | ||||||||||||
| 関連識別子 | https://doi.org/10.1088/0004-637X/792/1/77 | |||||||||||
| 関連名称 | 10.1088/0004-637X/792/1/77 | |||||||||||
| キーワード | ||||||||||||
| 主題 | quasars: absorption lines, quasars, HE0130-4021, HE0940-1050, Q1009+2956, HS1700+6416, HS1946+7658, Q2343+125, UM675, Q1157+014, HE1341-1020, HE0151-4326, 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
× Charlton, Jane C
× Eracleous, Michael
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| 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 | 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 |
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| 抄録 | ||||||||||||
| 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） | ||||||||||||
| 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 | |||||||||||
| 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 | ||||||||||||
| URL | http://gateway.isiknowledge.com/gateway/Gateway.cgi?&GWVersion=2&SrcAuth=ShinshuUniv&SrcApp=ShinshuUniv&DestLinkType=FullRecord&DestApp=WOS&KeyUT=000341172100077 | |||||||||||
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Cite as
Misawa, Toru, Charlton, Jane C, Eracleous, Michael, 2014, MONITORING THE VARIABILITY OF INTRINSIC ABSORPTION LINES IN QUASAR SPECTRA: IOP PUBLISHING LTD, 77– p.
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