BL Lac from SDSS

DOI

We present a sample of 386 BL Lacertae candidates identified from 2860deg^2^ of the Sloan Digital Sky Survey (SDSS) spectroscopic database. The candidates are primarily selected to have quasi-featureless optical spectra and low proper motions as measured from SDSS and USNO-B positions; however, our ability to separate Galactic from extragalactic quasi-featureless objects (QFOs) on the basis of proper motion alone is limited by the lack of reliable proper motion measurements for faint objects. Based largely on this remarkably clean color separation, we subdivide the sample into 240 probable candidates and 146 additional less probable (likely stellar) candidates.

Cone search capability for table J/AJ/129/2542/posBL (Possible BL Lac candidates)

Cone search capability for table J/AJ/129/2542/proBL (Probable BL Lac candidates)

Cone search capability for table J/AJ/129/2542/table5 (Potential radio-weak BL Lac candidates)

Identifier
DOI http://doi.org/10.26093/cds/vizier.51292542
Source https://dc.g-vo.org/rr/q/lp/custom/CDS.VizieR/J/AJ/129/2542
Related Identifier https://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/129/2542
Related Identifier http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/129/2542
Metadata Access http://dc.g-vo.org/rr/q/pmh/pubreg.xml?verb=GetRecord&metadataPrefix=oai_b2find&identifier=ivo://CDS.VizieR/J/AJ/129/2542
Provenance
Creator Collinge M.J.; Strauss M.A.; Hall P.B.; Ivezic Z.; Munn J.A.,Schlegel D.J.; Zakamska N.L.; Anderson S.F.; Harris H.C.; Richards G.T.,Schneider D.P.; Voges W.; York D.G.; Margon B.; Brinkmann J.
Publisher CDS
Publication Year 2006
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