Quasar Black Hole Mass Estimates from High-Ionization Lines: Breaking a Taboo?

Can high ionization lines such as CIV lambda 1549 provide useful virial broadening estimators for computing the mass of the supermassive black holes that power the quasar phenomenon? The question has been dismissed by several workers as a rhetorical one because blue-shifted, non-virial emission asso...

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Autores: Marziani, Paola, del Olmo, A., Martínez-Aldama, M. L., Dultzin, Deborah, Negrete, C. Alenka, Bon, Edi, Bon, Natasa, D'Onofrio, Mauro
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2017
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/383803
Acceso en línea:http://hdl.handle.net/10261/383803
Access Level:acceso abierto
Palabra clave:Ionization processes
Emission line formation
Atomic spectroscopy
Supermassive black holes
Rmission line profiles
Quasars
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spelling Quasar Black Hole Mass Estimates from High-Ionization Lines: Breaking a Taboo?Marziani, Paoladel Olmo, A.Martínez-Aldama, M. L.Dultzin, DeborahNegrete, C. AlenkaBon, EdiBon, NatasaD'Onofrio, MauroIonization processesEmission line formationAtomic spectroscopySupermassive black holesRmission line profilesQuasarsCan high ionization lines such as CIV lambda 1549 provide useful virial broadening estimators for computing the mass of the supermassive black holes that power the quasar phenomenon? The question has been dismissed by several workers as a rhetorical one because blue-shifted, non-virial emission associated with gas outflows is often prominent in CIV lambda 1549 line profiles. In this contribution, we first summarize the evidence suggesting that the FWHM of low-ionization lines like H beta and MgII lambda 2800 provide reliable virial broadening estimators over a broad range of luminosity. We confirm that the line widths of CIV lambda 1549 is not immediately offering a virial broadening estimator equivalent to the width of low-ionization lines. However, capitalizing on the results of Coatman et al. (2016) and Sulentic et al. (2017), we suggest a correction to FWHM CIV l 1549 for Eddington ratio and luminosity effects that, however, remains cumbersome to apply in practice. Intermediate ionization lines (IP similar to 20-30 eV; AlIII lambda 1860 and SiIII] lambda 1892) may provide a better virial broadening estimator for high redshift quasars, but larger samples are needed to assess their reliability. Ultimately, they may be associated with the broad-line region radius estimated from the photoionization method introduced by Negrete et al. (2013) to obtain black hole mass estimates independent from scaling laws. © 2017 by the authors.A.d.O., and M.L.M.A. acknowledge financial support from the Spanish Ministry for Economy and Competitiveness through grant AYA2016-76682-C3-1-P. D. D. and A. N. acknowledge support from grants PAPIIT108716, UNAM, and CONACyT221398. This research is part of the projects 176003 “Gravitation and the large scale structure of the Universe” and 176001 “Astrophysical spectroscopy of extragalactic objects” supported by the Ministry of Education and Science of the Republic of Serbia.Molecular Diversity Preservation InternationalMinisterio de Economía y Competitividad (España)Universidad Nacional Autónoma de MéxicoConsejo Nacional de Ciencia y Tecnología (México)Ministry of Education and Science (Serbia)Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]2025202520172025info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/383803reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/AEI//AYA2016-76682-C3-1-Phttp://dx.doi.org/10.3390/atoms5030033Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/3838032026-05-22T06:33:51Z
dc.title.none.fl_str_mv Quasar Black Hole Mass Estimates from High-Ionization Lines: Breaking a Taboo?
title Quasar Black Hole Mass Estimates from High-Ionization Lines: Breaking a Taboo?
spellingShingle Quasar Black Hole Mass Estimates from High-Ionization Lines: Breaking a Taboo?
Marziani, Paola
Ionization processes
Emission line formation
Atomic spectroscopy
Supermassive black holes
Rmission line profiles
Quasars
title_short Quasar Black Hole Mass Estimates from High-Ionization Lines: Breaking a Taboo?
title_full Quasar Black Hole Mass Estimates from High-Ionization Lines: Breaking a Taboo?
title_fullStr Quasar Black Hole Mass Estimates from High-Ionization Lines: Breaking a Taboo?
title_full_unstemmed Quasar Black Hole Mass Estimates from High-Ionization Lines: Breaking a Taboo?
title_sort Quasar Black Hole Mass Estimates from High-Ionization Lines: Breaking a Taboo?
dc.creator.none.fl_str_mv Marziani, Paola
del Olmo, A.
Martínez-Aldama, M. L.
Dultzin, Deborah
Negrete, C. Alenka
Bon, Edi
Bon, Natasa
D'Onofrio, Mauro
author Marziani, Paola
author_facet Marziani, Paola
del Olmo, A.
Martínez-Aldama, M. L.
Dultzin, Deborah
Negrete, C. Alenka
Bon, Edi
Bon, Natasa
D'Onofrio, Mauro
author_role author
author2 del Olmo, A.
Martínez-Aldama, M. L.
Dultzin, Deborah
Negrete, C. Alenka
Bon, Edi
Bon, Natasa
D'Onofrio, Mauro
author2_role author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Ministerio de Economía y Competitividad (España)
Universidad Nacional Autónoma de México
Consejo Nacional de Ciencia y Tecnología (México)
Ministry of Education and Science (Serbia)
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Ionization processes
Emission line formation
Atomic spectroscopy
Supermassive black holes
Rmission line profiles
Quasars
topic Ionization processes
Emission line formation
Atomic spectroscopy
Supermassive black holes
Rmission line profiles
Quasars
description Can high ionization lines such as CIV lambda 1549 provide useful virial broadening estimators for computing the mass of the supermassive black holes that power the quasar phenomenon? The question has been dismissed by several workers as a rhetorical one because blue-shifted, non-virial emission associated with gas outflows is often prominent in CIV lambda 1549 line profiles. In this contribution, we first summarize the evidence suggesting that the FWHM of low-ionization lines like H beta and MgII lambda 2800 provide reliable virial broadening estimators over a broad range of luminosity. We confirm that the line widths of CIV lambda 1549 is not immediately offering a virial broadening estimator equivalent to the width of low-ionization lines. However, capitalizing on the results of Coatman et al. (2016) and Sulentic et al. (2017), we suggest a correction to FWHM CIV l 1549 for Eddington ratio and luminosity effects that, however, remains cumbersome to apply in practice. Intermediate ionization lines (IP similar to 20-30 eV; AlIII lambda 1860 and SiIII] lambda 1892) may provide a better virial broadening estimator for high redshift quasars, but larger samples are needed to assess their reliability. Ultimately, they may be associated with the broad-line region radius estimated from the photoionization method introduced by Negrete et al. (2013) to obtain black hole mass estimates independent from scaling laws. © 2017 by the authors.
publishDate 2017
dc.date.none.fl_str_mv 2017
2025
2025
2025
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/383803
url http://hdl.handle.net/10261/383803
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
info:eu-repo/grantAgreement/AEI//AYA2016-76682-C3-1-P
http://dx.doi.org/10.3390/atoms5030033
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Molecular Diversity Preservation International
publisher.none.fl_str_mv Molecular Diversity Preservation International
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.812429

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