Optical spectroscopy of radio sources

A number of flat spectrum radio sources have been observed in optical spectroscopy; most of the sources are either classified as BL Lacertae objects or have been described as BL Lac candidates.

Cone search capability for table III/175/table1 (Observed radio source identifications)

Identifier
Source https://dc.g-vo.org/rr/q/lp/custom/CDS.VizieR/III/175
Related Identifier https://cdsarc.cds.unistra.fr/viz-bin/cat/III/175
Related Identifier http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=III/175
Metadata Access http://dc.g-vo.org/rr/q/pmh/pubreg.xml?verb=GetRecord&metadataPrefix=oai_b2find&identifier=ivo://CDS.VizieR/III/175
Provenance
Creator Stickel M.; Kuehr H.; Fried J.W.
Publisher CDS
Publication Year 2005
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; Natural Sciences; Observational Astronomy; Physics; Stellar Astronomy