Variability in Quasar Broad Absorption Line Outflows

Broad absorption lines (BALs) in quasar spectra identify high-velocity outflows that likely exist in all quasars and could play a major role in feedback to galaxy evolution (e.g., Di Matteo et al. 2005). Studying the variability in these BALs can help us understand the structure, evolution, and basi...

Full description

Saved in:
Bibliographic Details
Published in:Proceedings of the International Astronomical Union 2009-08, Vol.5 (S267), p.394-394
Main Authors: Capellupo, Daniel M., Hamann, Fred, Shields, Joseph C., Barlow, Tom A., Rodriguez, Paola
Format: Article
Language:English
Subjects:
Astronomy
Astrophysics
Contributed Papers
Quasars
Spectrum analysis
Star & galaxy formation
Stars & galaxies
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
cited_by
cites cdi_FETCH-LOGICAL-c343t-42e18cd656ee2fde1a11eb45ceb79d1296dd9a0a309c52d0a42956aa8f52c79f3
container_end_page 394
container_issue S267
container_start_page 394
container_title Proceedings of the International Astronomical Union
container_volume 5
creator Capellupo, Daniel M.
Hamann, Fred
Shields, Joseph C.
Barlow, Tom A.
Rodriguez, Paola
description Broad absorption lines (BALs) in quasar spectra identify high-velocity outflows that likely exist in all quasars and could play a major role in feedback to galaxy evolution (e.g., Di Matteo et al. 2005). Studying the variability in these BALs can help us understand the structure, evolution, and basic physical properties of these outflows. We are investigating BAL variability in a sample of 25 luminous quasars at 1.2 < z < 2.9 with multi-epoch observations that cover time scales from less than around a month to 7.7 years in the quasar rest-frame. We investigate changes in the C iv λ1549 BALs, and we see a variety of phenomena, including some BALs that either appeared or disappeared completely and other BALs that did not change at all over the whole observation period.
doi_str_mv 10.1017/S1743921310006782
format article
fullrecord <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_miscellaneous_745938578</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><cupid>10_1017_S1743921310006782</cupid><sourcerecordid>745938578</sourcerecordid><originalsourceid>FETCH-LOGICAL-c343t-42e18cd656ee2fde1a11eb45ceb79d1296dd9a0a309c52d0a42956aa8f52c79f3</originalsourceid><addsrcrecordid>eNp1kFtLw0AQhRdRsFZ_gG_BF5-qO3vNPtbiDQpFvLyGSXYjW9Js3U2Q_ntTWhQUX2aG4TuHwyHkHOgVUNDXz6AFNww4UEqVztkBGW1fE8MYHH7fwI_JSUpLSoXKuRwR8YbRY-kb320y32ZPPSaM2U0MaLNpmUJcdz602dy3Llv0Xd2Ez3RKjmpskjvb7zF5vbt9mT1M5ov7x9l0Pqm44N1EMAd5ZZVUzrHaOkAAVwpZuVIbC8woaw1S5NRUklmKghmpEPNaskqbmo_J5c53HcNH71JXrHyqXNNg60KfCi2k4bnU-UBe_CKXoY_tEK7gSmkzDDVAsIOqGFKKri7W0a8wbgqgxbbF4k-Lg4bvNbgqo7fv7sf5f9UXSzRymg</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>366793666</pqid></control><display><type>article</type><title>Variability in Quasar Broad Absorption Line Outflows</title><source>Cambridge University Press</source><creator>Capellupo, Daniel M. ; Hamann, Fred ; Shields, Joseph C. ; Barlow, Tom A. ; Rodriguez, Paola</creator><creatorcontrib>Capellupo, Daniel M. ; Hamann, Fred ; Shields, Joseph C. ; Barlow, Tom A. ; Rodriguez, Paola</creatorcontrib><description>Broad absorption lines (BALs) in quasar spectra identify high-velocity outflows that likely exist in all quasars and could play a major role in feedback to galaxy evolution (e.g., Di Matteo et al. 2005). Studying the variability in these BALs can help us understand the structure, evolution, and basic physical properties of these outflows. We are investigating BAL variability in a sample of 25 luminous quasars at 1.2 &lt; z &lt; 2.9 with multi-epoch observations that cover time scales from less than around a month to 7.7 years in the quasar rest-frame. We investigate changes in the C iv λ1549 BALs, and we see a variety of phenomena, including some BALs that either appeared or disappeared completely and other BALs that did not change at all over the whole observation period.</description><identifier>ISSN: 1743-9213</identifier><identifier>EISSN: 1743-9221</identifier><identifier>DOI: 10.1017/S1743921310006782</identifier><language>eng</language><publisher>Cambridge, UK: Cambridge University Press</publisher><subject>Astronomy ; Astrophysics ; Contributed Papers ; Quasars ; Spectrum analysis ; Star &amp; galaxy formation ; Stars &amp; galaxies</subject><ispartof>Proceedings of the International Astronomical Union, 2009-08, Vol.5 (S267), p.394-394</ispartof><rights>Copyright © International Astronomical Union 2010</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><cites>FETCH-LOGICAL-c343t-42e18cd656ee2fde1a11eb45ceb79d1296dd9a0a309c52d0a42956aa8f52c79f3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.cambridge.org/core/product/identifier/S1743921310006782/type/journal_article$$EHTML$$P50$$Gcambridge$$H</linktohtml><link.rule.ids>314,776,780,27903,27904,72707</link.rule.ids></links><search><creatorcontrib>Capellupo, Daniel M.</creatorcontrib><creatorcontrib>Hamann, Fred</creatorcontrib><creatorcontrib>Shields, Joseph C.</creatorcontrib><creatorcontrib>Barlow, Tom A.</creatorcontrib><creatorcontrib>Rodriguez, Paola</creatorcontrib><title>Variability in Quasar Broad Absorption Line Outflows</title><title>Proceedings of the International Astronomical Union</title><addtitle>Proc. IAU</addtitle><description>Broad absorption lines (BALs) in quasar spectra identify high-velocity outflows that likely exist in all quasars and could play a major role in feedback to galaxy evolution (e.g., Di Matteo et al. 2005). Studying the variability in these BALs can help us understand the structure, evolution, and basic physical properties of these outflows. We are investigating BAL variability in a sample of 25 luminous quasars at 1.2 &lt; z &lt; 2.9 with multi-epoch observations that cover time scales from less than around a month to 7.7 years in the quasar rest-frame. We investigate changes in the C iv λ1549 BALs, and we see a variety of phenomena, including some BALs that either appeared or disappeared completely and other BALs that did not change at all over the whole observation period.</description><subject>Astronomy</subject><subject>Astrophysics</subject><subject>Contributed Papers</subject><subject>Quasars</subject><subject>Spectrum analysis</subject><subject>Star &amp; galaxy formation</subject><subject>Stars &amp; galaxies</subject><issn>1743-9213</issn><issn>1743-9221</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2009</creationdate><recordtype>article</recordtype><recordid>eNp1kFtLw0AQhRdRsFZ_gG_BF5-qO3vNPtbiDQpFvLyGSXYjW9Js3U2Q_ntTWhQUX2aG4TuHwyHkHOgVUNDXz6AFNww4UEqVztkBGW1fE8MYHH7fwI_JSUpLSoXKuRwR8YbRY-kb320y32ZPPSaM2U0MaLNpmUJcdz602dy3Llv0Xd2Ez3RKjmpskjvb7zF5vbt9mT1M5ov7x9l0Pqm44N1EMAd5ZZVUzrHaOkAAVwpZuVIbC8woaw1S5NRUklmKghmpEPNaskqbmo_J5c53HcNH71JXrHyqXNNg60KfCi2k4bnU-UBe_CKXoY_tEK7gSmkzDDVAsIOqGFKKri7W0a8wbgqgxbbF4k-Lg4bvNbgqo7fv7sf5f9UXSzRymg</recordid><startdate>200908</startdate><enddate>200908</enddate><creator>Capellupo, Daniel M.</creator><creator>Hamann, Fred</creator><creator>Shields, Joseph C.</creator><creator>Barlow, Tom A.</creator><creator>Rodriguez, Paola</creator><general>Cambridge University Press</general><scope>AAYXX</scope><scope>CITATION</scope><scope>3V.</scope><scope>7XB</scope><scope>88I</scope><scope>8FD</scope><scope>8FE</scope><scope>8FG</scope><scope>8FK</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>ARAPS</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>GNUQQ</scope><scope>H8D</scope><scope>HCIFZ</scope><scope>L7M</scope><scope>M2P</scope><scope>P5Z</scope><scope>P62</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>Q9U</scope><scope>7TG</scope><scope>KL.</scope></search><sort><creationdate>200908</creationdate><title>Variability in Quasar Broad Absorption Line Outflows</title><author>Capellupo, Daniel M. ; Hamann, Fred ; Shields, Joseph C. ; Barlow, Tom A. ; Rodriguez, Paola</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c343t-42e18cd656ee2fde1a11eb45ceb79d1296dd9a0a309c52d0a42956aa8f52c79f3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2009</creationdate><topic>Astronomy</topic><topic>Astrophysics</topic><topic>Contributed Papers</topic><topic>Quasars</topic><topic>Spectrum analysis</topic><topic>Star &amp; galaxy formation</topic><topic>Stars &amp; galaxies</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Capellupo, Daniel M.</creatorcontrib><creatorcontrib>Hamann, Fred</creatorcontrib><creatorcontrib>Shields, Joseph C.</creatorcontrib><creatorcontrib>Barlow, Tom A.</creatorcontrib><creatorcontrib>Rodriguez, Paola</creatorcontrib><collection>CrossRef</collection><collection>ProQuest Central (Corporate)</collection><collection>ProQuest Central (purchase pre-March 2016)</collection><collection>Science Database (Alumni Edition)</collection><collection>Technology Research Database</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>ProQuest Central (Alumni) (purchase pre-March 2016)</collection><collection>ProQuest Central (Alumni)</collection><collection>ProQuest Central</collection><collection>Advanced Technologies &amp; Aerospace Database‎ (1962 - current)</collection><collection>ProQuest Central Essentials</collection><collection>ProQuest Central</collection><collection>Technology Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central</collection><collection>ProQuest Central Student</collection><collection>Aerospace Database</collection><collection>SciTech Premium Collection</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Science Database</collection><collection>ProQuest advanced technologies &amp; aerospace journals</collection><collection>ProQuest Advanced Technologies &amp; Aerospace Collection</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><collection>ProQuest Central Basic</collection><collection>Meteorological &amp; Geoastrophysical Abstracts</collection><collection>Meteorological &amp; Geoastrophysical Abstracts - Academic</collection><jtitle>Proceedings of the International Astronomical Union</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Capellupo, Daniel M.</au><au>Hamann, Fred</au><au>Shields, Joseph C.</au><au>Barlow, Tom A.</au><au>Rodriguez, Paola</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Variability in Quasar Broad Absorption Line Outflows</atitle><jtitle>Proceedings of the International Astronomical Union</jtitle><addtitle>Proc. IAU</addtitle><date>2009-08</date><risdate>2009</risdate><volume>5</volume><issue>S267</issue><spage>394</spage><epage>394</epage><pages>394-394</pages><issn>1743-9213</issn><eissn>1743-9221</eissn><abstract>Broad absorption lines (BALs) in quasar spectra identify high-velocity outflows that likely exist in all quasars and could play a major role in feedback to galaxy evolution (e.g., Di Matteo et al. 2005). Studying the variability in these BALs can help us understand the structure, evolution, and basic physical properties of these outflows. We are investigating BAL variability in a sample of 25 luminous quasars at 1.2 &lt; z &lt; 2.9 with multi-epoch observations that cover time scales from less than around a month to 7.7 years in the quasar rest-frame. We investigate changes in the C iv λ1549 BALs, and we see a variety of phenomena, including some BALs that either appeared or disappeared completely and other BALs that did not change at all over the whole observation period.</abstract><cop>Cambridge, UK</cop><pub>Cambridge University Press</pub><doi>10.1017/S1743921310006782</doi><tpages>1</tpages><oa>free_for_read</oa></addata></record>
fulltext fulltext
identifier ISSN: 1743-9213
ispartof Proceedings of the International Astronomical Union, 2009-08, Vol.5 (S267), p.394-394
issn 1743-9213
1743-9221
language eng
recordid cdi_proquest_miscellaneous_745938578
source Cambridge University Press
subjects Astronomy
Astrophysics
Contributed Papers
Quasars
Spectrum analysis
Star & galaxy formation
Stars & galaxies
title Variability in Quasar Broad Absorption Line Outflows
url http://sfxeu10.hosted.exlibrisgroup.com/loughborough?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-22T14%3A51%3A38IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_cross&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Variability%20in%20Quasar%20Broad%20Absorption%20Line%20Outflows&rft.jtitle=Proceedings%20of%20the%20International%20Astronomical%20Union&rft.au=Capellupo,%20Daniel%20M.&rft.date=2009-08&rft.volume=5&rft.issue=S267&rft.spage=394&rft.epage=394&rft.pages=394-394&rft.issn=1743-9213&rft.eissn=1743-9221&rft_id=info:doi/10.1017/S1743921310006782&rft_dat=%3Cproquest_cross%3E745938578%3C/proquest_cross%3E%3Cgrp_id%3Ecdi_FETCH-LOGICAL-c343t-42e18cd656ee2fde1a11eb45ceb79d1296dd9a0a309c52d0a42956aa8f52c79f3%3C/grp_id%3E%3Coa%3E%3C/oa%3E%3Curl%3E%3C/url%3E&rft_id=info:oai/&rft_pqid=366793666&rft_id=info:pmid/&rft_cupid=10_1017_S1743921310006782&rfr_iscdi=true