Interferometry of the supernova remnant OA 184

Details Interferometry of the supernova remnant OA 184 Interferometry of the supernova remnant OA 184

Aug 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979sval....5..186l&link_type=abstract

(Pis'ma v Astronomicheskii Zhurnal, vol. 5, July 1979, p. 348-352.) Soviet Astronomy Letters, vol. 5, July-Aug. 1979, p. 186-188

Astronomy and Astrophysics

Astronomy

4

Astronomical Spectroscopy, Fabry-Perot Interferometers, Nebulae, Supernova Remnants, H Alpha Line, Interstellar Gas, Radial Velocity, Stellar Envelopes

Scientific paper

The supernova remnant OA 184 has been observed interferometrically in the H-alpha line with a high-contrast Fabry-Perot etalon and a contact image converter. The mean expansion velocity of the diffuse filamentary envelope is 50 plus or minus 14 km/sec. The most rapidly accelerated gaseous structures are traveling away from the center at approximately 120-130 km/sec, corresponding to the shock propagation velocity in the intercloud medium. If the adiabatic model is adopted, the envelope has a characteristic expansion time of 7.5 x 10 to the 4th yr; the initial energy of the outburst would have been 10 to the 51st erg.

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