Candidate ICRF flat-spectrum radio sources. III.

DOI

In extending our spectroscopic program, which targets sources drawn from the International Celestial Reference Frame (ICRF) Catalog, we have obtained spectra for ~160 compact, flat-spectrum radio sources and determined redshifts for 112 quasars and radio galaxies. A further 14 sources with featureless spectra have been classified as BL Lac objects. Spectra were obtained at three telescopes: the 3.58m European Southern Observatory New Technology Telescope, and the two 8.2m Gemini telescopes in Hawaii and Chile. While most of the sources are powerful quasars, a significant fraction of radio galaxies is also included from the list of non-defining ICRF radio sources.

Cone search capability for table J/AJ/153/157/table1 (Observed emission lines)

Cone search capability for table J/AJ/153/157/table3 (Objects with low signal-to-noise spectra)

Cone search capability for table J/AJ/153/157/table2 (Probable BL Lac objects)

Identifier
DOI http://doi.org/10.26093/cds/vizier.51530157
Source https://dc.g-vo.org/rr/q/lp/custom/CDS.VizieR/J/AJ/153/157
Related Identifier https://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/153/157
Related Identifier https://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/153/157
Metadata Access http://dc.g-vo.org/rr/q/pmh/pubreg.xml?verb=GetRecord&metadataPrefix=oai_b2find&identifier=ivo://CDS.VizieR/J/AJ/153/157
Provenance
Creator Titov O.; Pursimo T.; Johnston H.M.; Stanford L.M.; Hunstead R.W.,Jauncey D.L.; Zenere K.A.
Publisher CDS
Publication Year 2017
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; High Energy Astrophysics; Interdisciplinary Astronomy; Natural Sciences; Observational Astronomy; Physics; Stellar Astronomy