Optical observations of supernova remnants - The filamentary nebula Simeiz 147

Details Optical observations of supernova remnants - The filamentary nebula Simeiz 147 Optical observations of supernova remnants - The filamentary nebula Simeiz 147

Feb 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976azh....53...38l&link_type=abstract

Astronomicheskii Zhurnal, vol. 53, no. 1, 1976, p. 38-43. In Russian.

Astronomy and Astrophysics

Astronomy

8

Astronomical Spectroscopy, Nebulae, Stellar Envelopes, Supernova Remnants, Fabry-Perot Interferometers, Filaments, Gas Expansion, H Alpha Line, Image Converters, Kinetic Energy, Spectral Line Width

Scientific paper

Results are presented for a series of interferometric observations of Simeiz 147, which were conducted using a Fabry-Perot interferometer and a contact image converter. High-velocity gas is observed on the near and far sides of the shell; the expansion velocity is estimated to be 100 km/s. The H-alpha half width in separate filaments is found to vary from 40 to 110 km/s, an age of 75,000 years is computed for the supernova, and the kinetic energy of the ejected shell is calculated. Agreement between these results and present hypotheses on the origin and luminescence of the filaments is discussed.

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