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Catalog Service:
Double QSOs: merger scenarios

Short name: J/ApJ/693/1554
IVOA Identifier: ivo://CDS.VizieR/J/ApJ/693/1554
DOI (Digital Object Identifier): 10.26093/cds/vizier.16931554
Publisher: CDS[+][Pub. ID]
More Info: https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/693/1554
VO Compliance: Level 2: This is a VO-compliant resource.
Status: active
Registered: 2011 Apr 07 07:54:00Z
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Description


We analyze the available sample of double quasars, and investigate their physical properties. Our sample comprises 85 pairs, selected from the Sloan Digital Sky Survey (SDSS). We derive physical parameters for the engine and the host, and model the dynamical evolution of the pair. First, we compare different scaling relationships between massive black holes and their hosts (bulge mass, velocity dispersion, and their possible redshift dependences), and discuss their consistency. We then compute dynamical friction timescales for the double quasar systems to investigate their frequency and their agreement with the "merger driven" scenario for quasar triggering.

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