X-ray spectral observations of the crab-like supernova remnants G21.5-0.9 and 3C 58

Details X-ray spectral observations of the crab-like supernova remnants G21.5-0.9 and 3C 58 X-ray spectral observations of the crab-like supernova remnants G21.5-0.9 and 3C 58

Jan 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986apj...300l..59d&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor (ISSN 0004-637X), vol. 300, Jan. 15, 1986, p. L59-L62.

Astronomy and Astrophysics

Astronomy

34

Supernova Remnants, X Ray Astronomy, Absorption Spectra, Centimeter Waves, Crab Nebula, Hydrogen, X Ray Spectra

Scientific paper

Broad-band (2 - 10 keV) spectral data of the Crab-like supernova remnants 3C 58 and G21.5-0.9 have been obtained from the medium-energy instrument on EXOSAT. Both objects show a simple power-law spectrum with a spectral index of 0.72±0.12 for G21.5-0.9 and 1.30±0.26 for 3C 58. VLA 21 cm absorption measurements for G21.5-0.9 indicate a distance of 5.5 - 9.3 kpc.

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