Two remarkable bright supernova remnants

Details Two remarkable bright supernova remnants Two remarkable bright supernova remnants

Jan 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985natur.313..113s&link_type=abstract

Nature (ISSN 0028-0836), vol. 313, Jan. 10, 1985, p. 113-115.

Astronomy and Astrophysics

Astronomy

53

H Lines, Polarized Radiation, Radio Astronomy, Supernova Remnants, Crab Nebula, Radio Telescopes, Very Large Array (Vla)

Scientific paper

The Very Large Array of the National Radio Astronomy Observatory in its B, C, and D configurations was used between July 1981 and August 1984 to clarify the morphology of several high-brightness sources from the Milne SNR catalog. Of these, the two sources G349.7+0.2 and G357.7-0.1 were found to be the most unusual. The former is the third brightest galactic SNR, after Cas A and the Crab Nebula. The source resembles shell-type remnants in some respects but lacks the usually prominent central cavity and ringlike appearance. G357.7-0.1 is the closest SNR to the galactic center direction and could be located in the nuclear disk itself. It has a relatively steep spectral index and is dissimilar in appearance to every other known SNR. The linear polarization, filaments, and three-dimensional structure of this object are discussed.

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