High-resolution radio and X-ray observations of the supernova remnant W28

Details High-resolution radio and X-ray observations of the supernova remnant W28 High-resolution radio and X-ray observations of the supernova remnant W28

Mar 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983apj...266..684a&link_type=abstract

Astrophysical Journal, Part 1, vol. 266, Mar. 15, 1983, p. 684-688.

Astronomy and Astrophysics

Astronomy

22

Galactic Radiation, Gamma Ray Astronomy, Nebulae, Radio Sources (Astronomy), Supernova Remnants, X Ray Sources, Astronomical Maps, Heao 2, High Resolution

Scientific paper

The present study has the objective to report the first high resolution radio and X-ray observations of the central part of the galactic supernova remnant, W28, taking into account the possible association of the remnant with the unidentified gamma-ray source, 2CG 006-00. This gamma-ray source is approximately two-thirds as bright as the Crab pulsar above 100 MeV, and has a somewhat flatter spectrum. Both the radio and X-ray observations reveal previously unknown aspects of W28 which support the possibility of W28 being a gamma-ray source. The radio data show a flat-spectrum, nonthermal component reminiscent of the Crab Nebula and Vela, both of which are confirmed gamma-ray sources. The X-ray observations reveal a compact source within W28, again suggestive of both the Crab and Vela. If the similarities among W28, the Crab Nebula, and the Vela remnant are valid, the gamma-ray source 2CG 00-00 should be studied for periodicity, the conclusive signature of a compact source of emission.

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