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The Problem of Identifying Decametric Sources

Published online by Cambridge University Press:  26 May 2016

O.V. Verkhodanov ,
H. Andernach  and
N.V. Verkhodanova
O.V. Verkhodanov
Affiliation:
Special Astrophysical Observatory, Nizhnij Arkhyz, Russia, 369167
H. Andernach
Affiliation:
Special Astrophysical Observatory, Nizhnij Arkhyz, Russia, 369167
N.V. Verkhodanova
Affiliation:
Special Astrophysical Observatory, Nizhnij Arkhyz, Russia, 369167

Abstract

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We describe a method to cross-identify and construct continuum spectra for radio sources from decametric surveys with comparatively large positional errors. The 1822 sources from the UTR-2 catalogue (10—25 MHz, antenna beam of ∼40') were cross-identified with entries from other radio catalogues at higher frequencies. Using the CATS database we found accurate positions for 2314 counterparts to UTR sources, as well as a best-fit radio spectrum for most of these. About 350 (or 19%) of the UTR sources appear to be blends of two or more sources.

Type
Part 4: Extragalactic Radio Sources
Information
Symposium - International Astronomical Union , Volume 199: The Universe at Low Radio Frequencies , 2002 , pp. 215 - 216
Copyright
Copyright © Astronomical Society of the Pacific 2002 

References

Braude, S. Ya. et al. 1978, Ap&SS, 54, 37; 1979, Ap&SS, 64, 73; 1981, Ap&SS, 74, 409; 1985, Ap&SS, 111, 1; 1994, Ap&SS, 213, 1.Google Scholar
Verkhodanov, O.V. et al. 1997, ASP Conf. Ser. 125, 322, ed. Hunt, G. & Payne, H.E.; cf. also http://cats.sao.ru Google Scholar