Expansion of the optical remnant of Tycho's supernova

Details Expansion of the optical remnant of Tycho's supernova Expansion of the optical remnant of Tycho's supernova

Sep 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978apj...224..851k&link_type=abstract

Astrophysical Journal, Part 1, vol. 224, Sept. 15, 1978, p. 851-853, 855, 856. Research supported by the National Research Coun

Astronomy and Astrophysics

Astronomy

75

Astrometry, Astronomical Photography, Nebulae, Supernova Remnants, Expansion, Radio Sources (Astronomy)

Scientific paper

Seven plates taken between 1949 and 1977 at the prime focus of the Hale 5-m telescope have been used to study the expansion of the optical remnant of Tycho's supernova. The present expansion time scale for the remnant is found to be 1050 + or - 30 yr, which is close to the adiabatic time scale of 1000 yr that is obtained from a Sedov similarity solution. At an assumed distance of 6 kpc the average expansion velocity of the remnant is 15,600 km/s.

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