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SUMMARY:Cosmological Evolution of the Radio-loudness of Quasar Sources
DTSTART;VALUE=DATE-TIME:20190314T132500Z
DTEND;VALUE=DATE-TIME:20190314T134000Z
DTSTAMP;VALUE=DATE-TIME:20260305T080246Z
UID:indico-contribution-327@events.ncbj.gov.pl
DESCRIPTION:Speakers: Lukasz Stawarz (Jagiellonian Univ.\, Krakow)\nI will
  present our (Singal et al. 2011\, 2013) approach to the cosmological evol
 ution of the radio-loudness parameter for quasar sources. In particular\, 
 I will show how we determine the radio and optical luminosity evolutions f
 or a set of >5\,000 quasars combining the SDSS and FORST data\, based on t
 he method of Efron and Petrosian (1993)\, to access the intrinsic distribu
 tion of the radio-loudness parameter (defined as the ratio of the radio to
  optical luminosity)\, taking into account the truncations and correlation
 s inherent in the data. In this approach\, we found that the intrinsic dis
 tribution of the radio-loudness is quite different from the observed one\,
  is smooth with no evidence of a bimodality\, and that the fraction of the
  radio-loud quasars increases with inscribing redshift (contrary to severa
 l claims presented in the literature).\n\nhttps://events.ncbj.gov.pl/event
 /10/contributions/327/
LOCATION:
URL:https://events.ncbj.gov.pl/event/10/contributions/327/
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