Astronomy and Astrophysics – Astronomy
Scientific paper
Feb 1982
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982azh....59...20v&link_type=abstract
(Astronomicheskii Zhurnal, vol. 59, Jan.-Feb. 1982, p. 20-26.) Soviet Astronomy, vol. 26, Jan.-Feb. 1982, p. 12-16. Translation
Astronomy and Astrophysics
Astronomy
2
Galactic Radiation, Hydrogen, Neutral Gases, Radio Sources (Astronomy), Supernova Remnants, Absorption Spectra, H Ii Regions, H Lines, Hydrogen Ions, Radio Telescopes
Scientific paper
The H I line in the vicinity of the radio source W28 has been observed in absorption and emission with the RATAN-600 radio telescope at a resolution of 2.4 arcmin x 45 arcmin x 6.3 km/sec. The absorption line yields a distance of about 3 kpc to the supernova remnant; the compact H II regions observed there are located at the same distance. In emission, an expanding H I envelope 82 pc in diameter has been detected around W28; its mass is 69,000 solar masses and it is expanding at about 20 km/sec. The supernova remnant is 580,000 yr old and the energy of the original explosion was 8.4 x 10 to the 51st erg. Some conclusions are reached as to the possible genetic relation between the H II zones and the SNR.
Egorova T. M.
Gosachinskij I. V.
Grachev V. G.
Khersonskij V. K.
Ryzhkov N. F.
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