Abstract
We present a catalog of radio sources extending the RCR (RATAN Cold Refined) catalog to the right-ascension interval 2h ≤ RA < 7h. The list of objects was obtained in the process of a reprocessing of the observations of the “Cold” experiment conducted in 1980–1981 on RATAN-600 radio telescope at the declination of SS433, and the reduction of the 1987–1999 surveys of the same experiment.We report the right ascensions and integrated flux densities for 237 sources found at 7.6 cm (3.94 GHz) and their spectral exponents at 3.94 and 0.5 GHz. Twenty-nine sources of the list, which are mostly weaker than 30 mJy at 3.94 GHz, have available data only at two frequencies—1.4 and 3.94 Hz.We approximated the spectra of the sources using all catalogs available in the CATS and VizieR databases that meet the survey strip, and, in some cases, using the flux densities estimates from VLSSr,GLEAM, TGSS, and GB6 survey maps.We constructed the histograms of the spectral indices of the sources and verified the reliability of the identifications of sources found in the scans by comparing the coordinates and integrated flux densities with the corresponding parameters listed in the NVSS catalog. In the right ascension interval considered we found no objects at the 10–15 mJy level lacking in decimeter-wave catalogs.
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Original Russian Text © O.P. Zhelenkova, N.S. Soboleva, A.V. Temirova, N.N. Bursov, 2017, published in Astrofizicheskii Byulleten’, 2017, Vol. 72, No. 2, pp. 166–182.
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Zhelenkova, O.P., Soboleva, N.S., Temirova, A.V. et al. Deep 7.6 cm RATAN-600 sky surveys at the declination of SS 433 during the 1980–1999 period. Catalog of radio sources in the right-ascension interval 2h ≤ RA < 7h . Astrophys. Bull. 72, 150–164 (2017). https://doi.org/10.1134/S1990341317020067
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DOI: https://doi.org/10.1134/S1990341317020067