Expansion of the supernova remnant RCW 103

Lynn M. Carter, John R. Dickel, Dominik J. Bomans

Research output: Contribution to journalArticlepeer-review

45 Scopus citations


A new CCD image of the supernova remnant RCW 103 was taken in 1995 to compare with a photographic plate taken in 1970. We calculated the proper-motion expansion of the outer edge and several filaments by comparing radial slices through each of the datasets. The mean expansion rate of the outer edge is 1″.8 ± 0″.2 per 25 years, or about 1100 km s-1. At this velocity the remnant is most likely around 2000 years old. In addition, it must have made the transition from the double-shock phase of evolution to the point-blast phase fairly recently for the initial energy of the supernova explosion to be within a reasonable range.

Original languageEnglish (US)
Pages (from-to)990-997
Number of pages8
JournalPublications of the Astronomical Society of the Pacific
Issue number739
StatePublished - Sep 1997
Externally publishedYes

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science


Dive into the research topics of 'Expansion of the supernova remnant RCW 103'. Together they form a unique fingerprint.

Cite this