Abstract
view Abstract Citations (6) References (16) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS A Search for X-Ray Counterparts to Small Diameter Galactic Radio Sources Helfand, D. J. ; Chanan, G. A. Abstract By comparing observations obtained with the Einstein Observatory to the Molonglo catalog of small-diameter radio sources near the galactic plane, we have constrained the number of supernova remnants contained in the radio sample. The one known remnant among the 47 sources falling in Einstein fields was easily detected and another candidate remnant (G274.7-2.8) was discovered. The latter object has properties consistent with that of either a young shell-like or composite remnant, although an identification as a radio-loud quasar cannot be excluded. Apart from cases in which very large absorbing column densities are appropriate, upper limits to the x-ray emission from the remainder of the sample places most of the objects outside of the ranges of parameters that characterize the Galactic remnant population. Publication: The Astronomical Journal Pub Date: November 1989 DOI: 10.1086/115250 Bibcode: 1989AJ.....98.1652H Keywords: Cosmic X Rays; Extragalactic Radio Sources; Magellanic Clouds; Milky Way Galaxy; Pulsars; Supernova Remnants; X Ray Sources; Astronomical Catalogs; Heao 2; High Energy Interactions; Particle Acceleration; Astrophysics; NEBULAE: SUPERNOVA REMNANTS full text sources ADS | data products SIMBAD (52) NED (22)
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