VLA observations of three M 33 supernova remnants at 20 CM

Details VLA observations of three M 33 supernova remnants at 20 CM VLA observations of three M 33 supernova remnants at 20 CM

Sep 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985japa....6..145g&link_type=abstract

Journal of Astrophysics and Astronomy (ISSN 0250-6335), vol. 6, Sept. 1985, p. 145-151.

Astronomy and Astrophysics

Astronomy

10

Extragalactic Radio Sources, Local Group (Astronomy), Supernova Remnants, Astronomical Maps, Centimeter Waves, Morphology, Stellar Envelopes, Very Large Array (Vla), Very Long Base Interferometry

Scientific paper

The radiomorphology of three supernova remnants (SNR), detected as radio sources DDB-7, -8, and -9 in the galaxy M 33 was studied by means of the National Radio Astronomy Observatory's Very Large Array (VLA) in the A-array at 20 cm with an angular resolution of 1.3 arcsec (4 pc). The radio map of the DDB-9 radio source has revealed a shell structure with a size of 15 pc, confirming the SNR nature of this source. The second, DDB-8, may be a thick-shell SNR of size about 12 pc. These two sources are clearly resolved with angular sizes in good agreement with the earlier 6-cm VLA observations (Goss et al., 1978), and in reasonable agreement with the optical determinations (D'Odorco et al., 1982). The third object, DDB-7, is a small, presumably young, SNR with a size of about 4 pc.

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