Optical identifications and spectra of radio sources

Details Optical identifications and spectra of radio sources Optical identifications and spectra of radio sources

Apr 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009arep...53..287a&link_type=abstract

Astronomy Reports, Volume 53, Issue 4, pp.287-294

Astronomy and Astrophysics

Astronomy

98.70.Dk, 95.85.Bh

Scientific paper

We present classifications, optical identifications, and radio spectra for eight radio sources from three flux-density-complete samples in the following declination ranges: 4°-6° (B1950), S 3.9 > 200 mJy; 10°-12°30' (J2000), S 4.85 > 200 mJy; 74°-75° (J2000), S 4.85 > 100 mJy. For all these samples, the right ascensions are 0h-24h and the Galactic latitudes, | b| > 15°. Our optical observations at 4000-7500 ° were made with the 6-m telescope of the Special Astrophysical Observatory; we also observed at 0.97-21.7 GHz with the RATAN-600 radio telescope of the Special Astrophysical Observatory. We classify four of the objects as quasars and four as galaxies. Five of the radio sources have power-law spectra at 0.97-21.7 GHz, while two objects have flat spectra. The quasar J2358+0430 virtually did not vary during 23 years.

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