Astronomy and Astrophysics – Astrophysics
Scientific paper
Nov 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992a%26as...96....1j&link_type=abstract
Astronomy and Astrophysics Supplement Series (ISSN 0365-0138), vol. 96, no. 1, p. 1-21.
Astronomy and Astrophysics
Astrophysics
10
Star Formation, Stellar Envelopes, Supernova Remnants, Carbon Monoxide, H Ii Regions, Milky Way Galaxy, Molecular Gases, Telescopes
Scientific paper
The interaction of the extended shell-type supernova remnant (SNR) G54.4-0.3 with the interstellar medium was studied using observations with the KOSMA 3-m telescope of the complete SNR area in (C-12)O (1-0). Large-scale CO structures across the SNR were observed, indicating the SNR interaction with the ambient molecular gas. Values for the mass of the CO shell and the inital density of the molecular material were derived by integrating the CO emission over the total velocity range of the shell. For a distance estimates for HII-regions and an OB-association in the neighborhood of G54.4-0.3, the mass of the CO shell was found to be about 5 x 10 exp 4 solar masses and the initial density of the molecular material was about 30/cu cm.
Fuerst Ernst
Junkes Norbert
Reich Wolfgang
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