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Optical Spectra of Candidate International Celestial Reference Frame (ICRF) Flat-spectrum Radio Sources. III.

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Date

2017

Authors

Titov, Oleg
Pursimo, T
Johnston, H. M.
Stanford, Laura M
Hunstead, Richard
Jauncey, David
Zenere, Katrina A.

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Journal ISSN

Volume Title

Publisher

University of Chicago Press

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 3.58 m European Southern Observatory New Technology Telescope, and the two 8.2 m 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

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Citation

URI

http://hdl.handle.net/1885/218291

Collections

ANU Research Publications

Source

Astronomical Journal

Type

Journal article

Book Title

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Access Statement

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DOI

10.3847/1538-3881/aa61fd

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