Meteorology of the broad line region
Identifieur interne : 001664 ( Istex/Corpus ); précédent : 001663; suivant : 001665Meteorology of the broad line region
Auteurs : Andrew Robinson ; Enrique Pérez ; Luis De La FuenteSource :
- Lecture Notes in Physics [ 0075-8450 ] ; 1991.
Abstract
Abstract: We discuss the response of the broad emission lines to ionizing continuum variations in the context of the discrete cloud model. We consider cases in which the cloud system has a thick, spherical geometry and discuss several reverberation phenomena which may be relevant to the interpretation of observed light curves. We find that the lag obtained from cross-correlation analyses does not give a reliable indication of the effective “size” of the BLR; this can instead be obtained directly from the centroid of the transfer function. A notable property of this type of model is the relationship between the variability behaviour of an emission line and the shape of its profile. Computer simulations are presented which illustrate the evolution of the line profile in response to a ‘realistic’ continuum light curve.
Url:
DOI: 10.1007/BFb0030047
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ISTEX:DFB84D4908AD4E46360A4CDFBB879492F74E8A6CLe document en format XML
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We consider cases in which the cloud system has a thick, spherical geometry and discuss several reverberation phenomena which may be relevant to the interpretation of observed light curves. We find that the lag obtained from cross-correlation analyses does not give a reliable indication of the effective “size” of the BLR; this can instead be obtained directly from the centroid of the transfer function. A notable property of this type of model is the relationship between the variability behaviour of an emission line and the shape of its profile. Computer simulations are presented which illustrate the evolution of the line profile in response to a ‘realistic’ continuum light curve.</div></front></TEI><istex><corpusName>springer</corpusName><author><json:item><name>Andrew Robinson</name><affiliations><json:string>Institute of Astronomy, Madingley Rd., CB3 OHA, Cambridge, UK</json:string></affiliations></json:item><json:item><name>Enrique Pérez</name><affiliations><json:string>Instituto de Astrofísica de Canarias, La Laguna, 38200, Tenerife, Spain</json:string></affiliations></json:item><json:item><name>Luis de la Fuente</name><affiliations><json:string>Instituto de Astrofísica de Canarias, La Laguna, 38200, Tenerife, Spain</json:string></affiliations></json:item></author><language><json:string>eng</json:string></language><abstract>Abstract: We discuss the response of the broad emission lines to ionizing continuum variations in the context of the discrete cloud model. 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DisplayOrder="Western"><GivenName>Andrew</GivenName><FamilyName>Robinson</FamilyName></AuthorName></Author><Author AffiliationIDS="Aff2"><AuthorName DisplayOrder="Western"><GivenName>Enrique</GivenName><FamilyName>Pérez</FamilyName></AuthorName></Author><Author AffiliationIDS="Aff2"><AuthorName DisplayOrder="Western"><GivenName>Luis</GivenName><Particle>de la</Particle><FamilyName>Fuente</FamilyName></AuthorName></Author><Affiliation ID="Aff1"><OrgName>Institute of Astronomy</OrgName><OrgAddress><Street>Madingley Rd.</Street><Postcode>CB3 OHA</Postcode><City>Cambridge</City><Country>UK</Country></OrgAddress></Affiliation><Affiliation ID="Aff2"><OrgName>Instituto de Astrofísica de Canarias</OrgName><OrgAddress><Street>La Laguna</Street><Postcode>38200</Postcode><City>Tenerife</City><Country>Spain</Country></OrgAddress></Affiliation></AuthorGroup><Abstract ID="Abs1" Language="En"><Heading>Abstract</Heading><Para>We discuss the response of the broad emission lines to ionizing continuum variations in the context of the discrete cloud model. We consider cases in which the cloud system has a thick, spherical geometry and discuss several reverberation phenomena which may be relevant to the interpretation of observed light curves. We find that the lag obtained from cross-correlation analyses does not give a reliable indication of the effective “size” of the BLR; this can instead be obtained directly from the centroid of the transfer function. A notable property of this type of model is the relationship between the variability behaviour of an emission line and the shape of its profile. Computer simulations are presented which illustrate the evolution of the line profile in response to a ‘realistic’ continuum light curve.</Para></Abstract></ChapterHeader><NoBody></NoBody></Chapter></Book></Series></Publisher></istex:document></istex:metadataXml><mods version="3.6"><titleInfo lang="en"><title>Meteorology of the broad line region</title></titleInfo><titleInfo type="alternative" contentType="CDATA" lang="en"><title>Meteorology of the broad line region</title></titleInfo><name type="personal"><namePart type="given">Andrew</namePart><namePart type="family">Robinson</namePart><affiliation>Institute of Astronomy, Madingley Rd., CB3 OHA, Cambridge, UK</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Enrique</namePart><namePart type="family">Pérez</namePart><affiliation>Instituto de Astrofísica de Canarias, La Laguna, 38200, Tenerife, Spain</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Luis</namePart><namePart type="family">de la Fuente</namePart><affiliation>Instituto de Astrofísica de Canarias, La Laguna, 38200, Tenerife, Spain</affiliation><role><roleTerm type="text">author</roleTerm></role></name><typeOfResource>text</typeOfResource><genre type="conference [eBooks]" displayLabel="ReviewPaper"></genre><originInfo><publisher>Springer Berlin Heidelberg</publisher><place><placeTerm type="text">Berlin, Heidelberg</placeTerm></place><dateIssued encoding="w3cdtf">1991</dateIssued><copyrightDate encoding="w3cdtf">1991</copyrightDate></originInfo><language><languageTerm type="code" authority="rfc3066">en</languageTerm><languageTerm type="code" authority="iso639-2b">eng</languageTerm></language><physicalDescription><internetMediaType>text/html</internetMediaType></physicalDescription><abstract lang="en">Abstract: We discuss the response of the broad emission lines to ionizing continuum variations in the context of the discrete cloud model. 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type="given">R.</namePart><namePart type="given">L.</namePart><namePart type="family">Jaffe</namePart><role><roleTerm type="text">editor</roleTerm></role></name><name type="personal"><namePart type="given">R.</namePart><namePart type="family">Kippenhahn</namePart><role><roleTerm type="text">editor</roleTerm></role></name><name type="personal"><namePart type="given">D.</namePart><namePart type="family">Ruelle</namePart><role><roleTerm type="text">editor</roleTerm></role></name><name type="personal"><namePart type="given">H.</namePart><namePart type="given">A.</namePart><namePart type="family">Weidenmüller</namePart><role><roleTerm type="text">editor</roleTerm></role></name><name type="personal"><namePart type="given">J.</namePart><namePart type="family">Wess</namePart><role><roleTerm type="text">editor</roleTerm></role></name><name type="personal"><namePart type="given">J.</namePart><namePart type="family">Zittartz</namePart><role><roleTerm type="text">editor</roleTerm></role></name><name type="personal"><namePart type="given">W.</namePart><namePart type="family">Beiglböck</namePart><role><roleTerm type="text">editor</roleTerm></role></name><originInfo><copyrightDate encoding="w3cdtf">1991</copyrightDate><issuance>serial</issuance></originInfo><identifier type="ISSN">0075-8450</identifier><identifier type="eISSN">1616-6361</identifier><identifier type="SeriesID">5304</identifier><recordInfo><recordOrigin>Springer-Verlag, 1991</recordOrigin></recordInfo></relatedItem><identifier type="istex">DFB84D4908AD4E46360A4CDFBB879492F74E8A6C</identifier><identifier type="DOI">10.1007/BFb0030047</identifier><identifier type="ChapterID">10</identifier><identifier type="ChapterID">Chap10</identifier><accessCondition type="use and reproduction" contentType="copyright">Springer-Verlag, 1991</accessCondition><recordInfo><recordContentSource>SPRINGER</recordContentSource><recordOrigin>Springer-Verlag, 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