The RATAN radio continuum survey of the galactic plane between l = 342° and l = 17° and |b| &lt; 5° at 960 and 3900 MHz

Now in radio continuum surveys more than 10,000 radio sources have discovered in the Milky Way plane but the Galactic origin only of a small part of them has been determined. The problem comes from the absence of estimates of source distance and the optical identification even for bright radio sources, and the most of sources have not spectral data at 2-3 frequencies. As followed some hundreds of sources have not classified as thermal or non-thermal. Now we don't know the full number of supernova remnants (SNRs) in the Galaxy. The simple estimates show that a sample of Galactic SNRs is not full as for weak and extended (> 15′) as for bright and compact (< 3′) SNRs (Trushkin 1993).

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Radio Spectra of Complete Sample of Galactic Supernova Remnants

Трушкин

2002

Symp. - Int. Astron. Union

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Abstract. We present radio continuum spectra for 200 Galactic supernova remnants (SNRs) from 220 known and included in Green's (1998) catalog. The spectra can be plotted only for 200 SNRs because about 20 remaining new and weak SNRs (Whiteoak and Green, 1996;Gray, 1994a) have only one-frequency flux density measurements. Spectrum plotting is an "on-line" procedure of the CATS database (Verkhodanov et al., 1997) created for some other multi-frequency catalogs. These spectra include most of the measurements available in literature, as well as multi-frequency measurements of nearly 120 SNRs with the RATAN-600 radio telescope in 1, 2 and 4 Galactic quadrants and from the Galactic plane survey at 960 and 3900 MHz (Trushkin, 1986(Trushkin, , 1988(Trushkin, , 1989(Trushkin, , 1996(Trushkin, , 1998. The measurements have been placed on the same absolute flux density scale of Baars (1977) as in the paper by Kassim (1989a), using the correcting factor from the compiled catalog (Kuhr et al., 1981). The presented compilation has given a possibility of plotting quite accurate spectra with the thermal plasma free-free absorption in fitting the spectra accounted for.

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The RATAN radio continuum survey of the galactic plane between l = 342° and l = 17° and |b| < 5° at 960 and 3900 MHz

Cited by 5 publications

References 11 publications

The Ratan Galactic Plane Survey

The Ratan Galactic Plane Survey

The Ratan Galactic Plane Survey

Radio Spectra of Complete Sample of Galactic Supernova Remnants

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