Mostrar el registro sencillo del ítem
dc.contributor.author
Mao, Peiyuan
dc.contributor.author
Urry, C. Megan
dc.contributor.author
Marchesini, Ezequiel Joaquín
![Se ha confirmado la validez de este valor de autoridad por un usuario](/themes/CONICETDigital/images/authority_control/invisible.gif)
dc.contributor.author
Landoni, Marco
dc.contributor.author
Massaro, Francesco
dc.contributor.author
Ajello, Marco
dc.date.available
2019-02-05T21:11:24Z
dc.date.issued
2017-06
dc.identifier.citation
Mao, Peiyuan; Urry, C. Megan; Marchesini, Ezequiel Joaquín; Landoni, Marco; Massaro, Francesco; et al.; Radio Luminosity Function of Flat-spectrum Radio Quasars; IOP Publishing; Astrophysical Journal; 842; 2; 6-2017; 1-14
dc.identifier.issn
0004-637X
dc.identifier.uri
http://hdl.handle.net/11336/69481
dc.description.abstract
We present the radio luminosity function (LF) of flat-spectrum radio quasars (FSRQ), using the the largest and most complete sample to date. Cross-matching between the FIRST 20 cm and GB6 6 cm radio surveys, we find 638 flat-spectrum radio sources above 220 mJy at 1.4 GHz; of these, 327 are are classified and verified using optical spectroscopy data, mainly from Sloan Digital Sky Survey Data Release 12. We also considered flat-spectrum radio sources that lack both literature references and optical spectroscopy, and we identified 12 out of the 43 such sources to potentially be FSRQs, using their WISE colors. From the fully identified sample of 242 FSRQs, we derived the radio LF and cosmic evolution of blazars at 1.4 GHz, finding good agreement with previous work at 5 GHz. The number density of FSRQs increases dramatically to a redshift of z ∼ 2 and then declines for higher redshifts. Furthermore, the redshift at which the quasar density peaks is clearly dependent on luminosity, with more luminous sources peaking at higher redshifts. The approximate best-fit LF for a luminosity-dependent evolutionary model is a broken power-law with slopes ∼0.7 and ∼1.7 below and above the break luminosity, log L1.4 ∼ 43.8 erg s-1, respectively.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
IOP Publishing
![Se ha confirmado la validez de este valor de autoridad por un usuario](/themes/CONICETDigital/images/authority_control/invisible.gif)
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Cosmology: Observations
dc.subject
Galaxies: Active
dc.subject
Galaxies: Jets
dc.subject
Quasars: General
dc.subject.classification
Astronomía
![Se ha confirmado la validez de este valor de autoridad por un usuario](/themes/CONICETDigital/images/authority_control/invisible.gif)
dc.subject.classification
Ciencias Físicas
![Se ha confirmado la validez de este valor de autoridad por un usuario](/themes/CONICETDigital/images/authority_control/invisible.gif)
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
![Se ha confirmado la validez de este valor de autoridad por un usuario](/themes/CONICETDigital/images/authority_control/invisible.gif)
dc.title
Radio Luminosity Function of Flat-spectrum Radio Quasars
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2019-01-02T20:04:36Z
dc.journal.volume
842
dc.journal.number
2
dc.journal.pagination
1-14
dc.journal.pais
Reino Unido
![Se ha confirmado la validez de este valor de autoridad por un usuario](/themes/CONICETDigital/images/authority_control/invisible.gif)
dc.journal.ciudad
Londres
dc.description.fil
Fil: Mao, Peiyuan. Yale Center For Astronomy And Astrophysics; Estados Unidos
dc.description.fil
Fil: Urry, C. Megan. Yale Center For Astronomy And Astrophysics; Estados Unidos
dc.description.fil
Fil: Marchesini, Ezequiel Joaquín. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica La Plata; Argentina. Istituto Nazionale Di Fisica Nucleare, Sezione Di Torino; Italia. Inaf Istituto Di Astrofisica Spaziale E Fisica Cosmica; Italia. Università di Torino; Italia
dc.description.fil
Fil: Landoni, Marco. Istituto Nazionale Di Fisica Nucleare, Sezione Di Torino; . Università di Torino; Italia
dc.description.fil
Fil: Massaro, Francesco. Università di Torino; Italia. Istituto Nazionale Di Fisica Nucleare, Sezione Di Torino; Italia
dc.description.fil
Fil: Ajello, Marco. Clemson University; Estados Unidos
dc.journal.title
Astrophysical Journal
![Se ha confirmado la validez de este valor de autoridad por un usuario](/themes/CONICETDigital/images/authority_control/invisible.gif)
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://iopscience.iop.org/article/10.3847/1538-4357/aa74b8
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/https://dx.doi.org/10.3847/1538-4357/aa74b8
Archivos asociados