Sample of BL Lac objects from SDSS and FIRST

DOI

We present a large sample of 501 radio-selected BL Lac candidates from a combination of Sloan Digital Sky Survey (SDSS) Data Release 5 optical spectroscopy and the Faint Images of the Radio Sky at 20cm (FIRST) radio survey; this is one of the largest BL Lac samples yet assembled, and each object emerges with homogeneous data coverage. Each candidate is detected in the radio from FIRST and confirmed in SDSS optical spectroscopy to have (1) no emission feature with measured rest-equivalent width larger than 5{AA} and (2) no measured CaII H/K depression larger than 40%. We subdivide our sample into 426 higher-confidence candidates and 75 lower-confidence candidates.

Cone search capability for table J/AJ/135/2453/BLLac (Observed (table5) and derived (table6) parameters of BL Lac candidates)

Identifier
DOI http://doi.org/10.26093/cds/vizier.51352453
Source https://dc.g-vo.org/rr/q/lp/custom/CDS.VizieR/J/AJ/135/2453
Related Identifier https://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/135/2453
Related Identifier http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/135/2453
Metadata Access http://dc.g-vo.org/rr/q/pmh/pubreg.xml?verb=GetRecord&metadataPrefix=oai_b2find&identifier=ivo://CDS.VizieR/J/AJ/135/2453
Provenance
Creator Plotkin R.M.; Anderson S.F.; Hall P.B.; Margon B.; Voges W.,Schneider D.P.; Stinson G.; York D.G.
Publisher CDS
Publication Year 2011
Rights https://cds.unistra.fr/vizier-org/licences_vizier.html
OpenAccess true
Contact CDS support team <cds-question(at)unistra.fr>
Representation
Resource Type Dataset; AstroObjects
Discipline Astrophysics and Astronomy; Cosmology; Galactic and extragalactic Astronomy; Natural Sciences; Observational Astronomy; Physics