Radio hot SPOT in supernova remnant G 109.1-1.0

Astronomy and Astrophysics – Astronomy

Scientific paper

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Pulsars, Radio Sources (Astronomy), Supernova Remnants, Astronomical Maps, Radiant Flux Density, X Ray Binaries

Scientific paper

High-resolution, Very Large Array observations of a radio hot spot in the supernova remnant G 109.1-1.0 were carried out in January 1981 and August 1984 at 6 and 20 cm to examine the possible relationship of this source to the remnant and nearby binary X-ray pulsar. The structure, spectrum, and absence of variability over a 3-year time span are consistent with a background quasar or galaxy. The source, 2258+586, exhibits an unresolved core that is self-absorbed at 20 cm and a one-sided jet. A very faint object appears on the red print of the Palomar sky survey, 3.7±1.7 arcsec from the unresolved core.

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