Zooming into the broad line region of the gravitationally lensed quasar QSO 2237 + 0305 the Einstein Cross: III. Determination of the size and structure of the Civ and Ciii emitting regions using microlensing

Aims. We aim to use microlensing taking place in the lensed quasar QSO 2237 + 0305  to study the structure of the broad line region (BLR) and measure the size of the region emitting the C IV and C III] lines. Methods. Based on 39 spectrophotometric monitoring data points obtained between Oct. 2004 a...

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Autores: Sluse, D., Anguita, T.
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2011
País:Chile
Idioma:inglés
OAI Identifier:oai:repositorio.anid.cl:10533/237511
Acceso en línea:https://hdl.handle.net/10533/237511
Access Level:acceso abierto
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spelling Anguita, T.Sluse, D.201110.1051/0004-6361/201016110https://hdl.handle.net/10533/237511http://purl.org/coar/access_right/c_abf2Zooming into the broad line region of the gravitationally lensed quasar QSO 2237 + 0305 the Einstein Cross: III. Determination of the size and structure of the Civ and Ciii emitting regions using microlensingSluse, D.Anguita, T.2019-12-18T18:15:41Z2022-07-07T23:41:05Z2019-12-18T18:15:41Z2022-07-07T23:41:05Z2011Aims. We aim to use microlensing taking place in the lensed quasar QSO 2237 + 0305  to study the structure of the broad line region (BLR) and measure the size of the region emitting the C IV and C III] lines. Methods. Based on 39 spectrophotometric monitoring data points obtained between Oct. 2004 and Dec. 2007, we derived lightcurves for the C IV and C III] emission lines. We used three different techniques to analyse the microlensing signal. Different components of the lines (narrow, broad, and very broad) were identified and studied. We built a library of the simulated microlensing lightcurves that reproduce the signal observed in the continuum and in the lines provided only the source size is changed. A Bayesian analysis scheme is then developed to derive the size of the various components of the BLR. Results. 1. The half-light radius of the region emitting the C IV line is found to be light-days = 0.06 pc = 1.7 cm (at 68.3% CI). Similar values are obtained for C III]. Relative sizes of the carbon-line and V-band continuum emitting-regions are also derived with median values of Rline/Rcont in the range 4 to 29, depending on the FWHM of the line component. 2. The size of the C IV emitting region agrees with the radius-luminosity relationship derived from reverberation mapping. Using the virial theorem, we derive the mass of the black hole in QSO 2237 + 0305  to be MBH ~ 108.3 ± 0.3 M⊙. 3. We find that the C IV and C III] lines are produced in at least 2 spatially distinct regions, the most compact one giving rise to the broadest component of the line. The broad and narrow line profiles are slightly different for C IV and C III]. 4. Our analysis suggests a different structure for the C IV and Fe II+III emitting regions, with the latter produced in the inner part of the BLR or in a less extended emitting region than C IV.FONDAPFONDAP1501000315010003virtual::41086-1WOS:000288541600052https://hdl.handle.net/10533/237511enginstname: Conicytreponame: Repositorio Digital RI2.010.1051/0004-6361/201016110info:eu-repo/grantAgreement/Fondap/15010003https://www.aanda.org/articles/aa/abs/2011/04/aa16110-10/aa16110-10.htmlAtribución-NoComercial-SinDerivadas 3.0 Chilehttp://creativecommons.org/licenses/by-nc-nd/3.0/cl/info:eu-repo/semantics/openAccessZooming into the broad line region of the gravitationally lensed quasar QSO 2237 + 0305 the Einstein Cross: III. Determination of the size and structure of the Civ and Ciii emitting regions using microlensingAstronomy & AstrophysicsArticuloinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttps://hdl.handle.net/10533/237511http://purl.org/coar/resource_type/c_2df8fbb1045fc0e1-ef55-4532-8afe-69fe789d964dvirtual::41086-1045fc0e1-ef55-4532-8afe-69fe789d964dvirtual::41086-110533/237511oai:repositorio.anid.cl:10533/2375112023-07-24 15:53:43.681https://repositorio.anid.clRepositorio ANIDaletelier@anid.cl
dc.title.none.fl_str_mv Zooming into the broad line region of the gravitationally lensed quasar QSO 2237 + 0305 the Einstein Cross: III. Determination of the size and structure of the Civ and Ciii emitting regions using microlensing
dc.title.journal.none.fl_str_mv Astronomy & Astrophysics
title Zooming into the broad line region of the gravitationally lensed quasar QSO 2237 + 0305 the Einstein Cross: III. Determination of the size and structure of the Civ and Ciii emitting regions using microlensing
spellingShingle Zooming into the broad line region of the gravitationally lensed quasar QSO 2237 + 0305 the Einstein Cross: III. Determination of the size and structure of the Civ and Ciii emitting regions using microlensing
Sluse, D.
title_short Zooming into the broad line region of the gravitationally lensed quasar QSO 2237 + 0305 the Einstein Cross: III. Determination of the size and structure of the Civ and Ciii emitting regions using microlensing
title_full Zooming into the broad line region of the gravitationally lensed quasar QSO 2237 + 0305 the Einstein Cross: III. Determination of the size and structure of the Civ and Ciii emitting regions using microlensing
title_fullStr Zooming into the broad line region of the gravitationally lensed quasar QSO 2237 + 0305 the Einstein Cross: III. Determination of the size and structure of the Civ and Ciii emitting regions using microlensing
title_full_unstemmed Zooming into the broad line region of the gravitationally lensed quasar QSO 2237 + 0305 the Einstein Cross: III. Determination of the size and structure of the Civ and Ciii emitting regions using microlensing
title_sort Zooming into the broad line region of the gravitationally lensed quasar QSO 2237 + 0305 the Einstein Cross: III. Determination of the size and structure of the Civ and Ciii emitting regions using microlensing
dc.creator.none.fl_str_mv Sluse, D.
Anguita, T.
author Sluse, D.
author_facet Sluse, D.
Anguita, T.
author_role author
author2 Anguita, T.
author2_role author
description Aims. We aim to use microlensing taking place in the lensed quasar QSO 2237 + 0305  to study the structure of the broad line region (BLR) and measure the size of the region emitting the C IV and C III] lines. Methods. Based on 39 spectrophotometric monitoring data points obtained between Oct. 2004 and Dec. 2007, we derived lightcurves for the C IV and C III] emission lines. We used three different techniques to analyse the microlensing signal. Different components of the lines (narrow, broad, and very broad) were identified and studied. We built a library of the simulated microlensing lightcurves that reproduce the signal observed in the continuum and in the lines provided only the source size is changed. A Bayesian analysis scheme is then developed to derive the size of the various components of the BLR. Results. 1. The half-light radius of the region emitting the C IV line is found to be light-days = 0.06 pc = 1.7 cm (at 68.3% CI). Similar values are obtained for C III]. Relative sizes of the carbon-line and V-band continuum emitting-regions are also derived with median values of Rline/Rcont in the range 4 to 29, depending on the FWHM of the line component. 2. The size of the C IV emitting region agrees with the radius-luminosity relationship derived from reverberation mapping. Using the virial theorem, we derive the mass of the black hole in QSO 2237 + 0305  to be MBH ~ 108.3 ± 0.3 M⊙. 3. We find that the C IV and C III] lines are produced in at least 2 spatially distinct regions, the most compact one giving rise to the broadest component of the line. The broad and narrow line profiles are slightly different for C IV and C III]. 4. Our analysis suggests a different structure for the C IV and Fe II+III emitting regions, with the latter produced in the inner part of the BLR or in a less extended emitting region than C IV.
publishDate 2011
dc.date.issued.none.fl_str_mv 2011
dc.date.accessioned.none.fl_str_mv 2019-12-18T18:15:41Z
2022-07-07T23:41:05Z
dc.date.available.none.fl_str_mv 2019-12-18T18:15:41Z
2022-07-07T23:41:05Z
dc.type.none.fl_str_mv Articulo
dc.type.driver.none.fl_str_mv info:eu-repo/semantics/article
dc.type.openaire.none.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.folio.none.fl_str_mv 15010003
15010003
dc.identifier.idwos.none.fl_str_mv WOS:000288541600052
dc.identifier.uri.none.fl_str_mv https://hdl.handle.net/10533/237511
identifier_str_mv 15010003
WOS:000288541600052
url https://hdl.handle.net/10533/237511
dc.language.iso.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv instname: Conicyt
reponame: Repositorio Digital RI2.0
dc.relation.doi.none.fl_str_mv 10.1051/0004-6361/201016110
dc.relation.projectid.none.fl_str_mv info:eu-repo/grantAgreement/Fondap/15010003
dc.relation.uri.none.fl_str_mv https://www.aanda.org/articles/aa/abs/2011/04/aa16110-10/aa16110-10.html
dc.rights.none.fl_str_mv Atribución-NoComercial-SinDerivadas 3.0 Chile
http://creativecommons.org/licenses/by-nc-nd/3.0/cl/
dc.rights.driver.none.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv Atribución-NoComercial-SinDerivadas 3.0 Chile
http://creativecommons.org/licenses/by-nc-nd/3.0/cl/
eu_rights_str_mv openAccess
repository.name.fl_str_mv Repositorio ANID
repository.mail.fl_str_mv aletelier@anid.cl
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