Continuum observations of supernova remnant G 127+0.5 at 2695 MHz

Details Continuum observations of supernova remnant G 127+0.5 at 2695 MHz Continuum observations of supernova remnant G 127+0.5 at 2695 MHz

May 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978a%26a....66...77s&link_type=abstract

Astronomy and Astrophysics, vol. 66, no. 1-2, May 1978, p. 77-80.

Astronomy and Astrophysics

Astronomy

18

Astronomical Maps, Radio Astronomy, Stellar Radiation, Stellar Spectrophotometry, Supernova Remnants, Milky Way Galaxy, Point Sources, Stellar Envelopes

Scientific paper

A radio-continuum map of the supernova remnant G 127+0.5 is presented which was obtained at a frequency of 2695 MHz with a telescope beamwidth of about 4.4 arcmin and a sensitivity of 0.014 K for a 1-sec integration. It is found that the main shell of G 127+0.5 is well-defined around a circular arc of about 240 deg and that a weak bridge of emission apparently runs diametrically across the interior of the remnant at an angle of about 25 deg E of the north-south line. The total integrated flux density of the source at 2695 MHz is reported as 8.3 + or - 1.0 Jy, a spectral index of 0.60 + or - 0.05 is determined, and it is suggested that G 127+0.5 is nothing more than a normal SNR in terms of its spectral characteristics. Positions and 11-cm flux densities are given for four point sources in the field, additional data on these sources are examined, and the point source 0125+62 is identified as the central source. No evidence is detected for significant variability of the central source, and its spectrum is shown to be essentially flat between 2695 and 15,000 MHz.

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