A new class of nonthermal radio sources

Details A new class of nonthermal radio sources A new class of nonthermal radio sources

Jan 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985natur.313..115b&link_type=abstract

Nature (ISSN 0028-0836), vol. 313, Jan. 10, 1985, p. 115-118.

Astronomy and Astrophysics

Astronomy

62

Galactic Structure, Nonthermal Radiation, Radio Galaxies, Radio Sources (Astronomy), Radio Spectra, Supernova Remnants, Crab Nebula, Morphology, Polarized Radiation, Radio Astronomy

Scientific paper

Current radio catalogues list some 145 sources as galactic supernova remnants. Detailed maps including spatially-resolved spectral information and polarimetric data have been obtained for about half of the catalogued objects. While mapping many of the remnants not well studied to date, the authors have discovered at least two nonthermal extended objects which defy classification as supernova remnants. The two sources exhibit a marked axial symmetry with evidence for a compact component at one extreme of the axis. Their diffuse emission includes bright filamentary structures superimposed on a lower surface brightness component which gradually fades, becoming undetectable at the end of the axis opposite the compact source. The authors propose that these objects are representative of a new class of nonthermal radio sources.

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