Candidate ICRF flat-spectrum radio sources. III. Virtual Observatory Resource

Authors

1. Titov O.
2. Pursimo T.
3. Johnston H.M.
4. Stanford L.M.
5. Hunstead R.W.,Jauncey D.L.
6. Zenere K.A.

Published by

CDS

Abstract

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.

Keywords

1. radio-sources
2. quasars
3. radio-galaxies
4. bl-lacertae-objects
5. spectroscopy
6. redshifted
7. very-long-baseline-interferometry

Bibliographic source Bibcode

2017AJ....153..157T

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Document Object Identifer DOI

doi:10.26093/cds/vizier.51530157

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