Revision of the expansion velocity of IC 443

Details Revision of the expansion velocity of IC 443 Revision of the expansion velocity of IC 443

Feb 1975

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975sval....1...35l&link_type=abstract

(Pis'ma v Astronomicheskii Zhurnal, vol. 1, Feb. 1975, p. 25-28.) Soviet Astronomy Letters, vol. 1, Jan.-Feb. 1975, p. 35, 36. T

Astronomy and Astrophysics

Astronomy

3

Astrometry, Radial Velocity, Stellar Motions, Supernova Remnants, Interferometry, Shock Wave Propagation, Stellar Envelopes

Scientific paper

Additional interferometric measurements were done on the optical supernova remnant IC 443. Mainly the weak central region was observed. Some filaments have velocities of 160-170 km/s (3 times larger than the mean velocity of shell expansion found previously by the author). The corresponding age of IC 443 is 25,000 years. The agreement with the modern concept of shock wave propagation in supernova remnants is discussed.

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