Radio Expansion Studies of Two Historical Supernova Remnants: SN1006 and SN1572

Details Radio Expansion Studies of Two Historical Supernova Remnants: SN1006 and SN1572 Radio Expansion Studies of Two Historical Supernova Remnants: SN1006 and SN1572

Dec 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003aas...203.3916c&link_type=abstract

American Astronomical Society Meeting 203, #39.16; Bulletin of the American Astronomical Society, Vol. 35, p.1267

Astronomy and Astrophysics

Astronomy

Scientific paper

We present results that trace the dynamics of two historical remnants, SN1006 and SN1572 (Tycho), for the past two decades. 21-cm radio images of each remnant were recorded during two previous epochs: 1983-1984 and 1991-1994. We obtained third-epoch images of both remnants from 2001 to 2003. After a direct comparison of images from these three epochs, we found the mean radio expansion rate of Tycho now agrees with a previous X-ray expansion study, and for the first time, we have measured the expansion rate over the entire rim of SN1006.

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