Continuum observations of the supernova remnant CTA 1 at 2695 MHz

Details Continuum observations of the supernova remnant CTA 1 at 2695 MHz Continuum observations of the supernova remnant CTA 1 at 2695 MHz

May 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979a%26a....74..361s&link_type=abstract

Astronomy and Astrophysics, vol. 74, no. 3, May 1979, p. 361-368.

Astronomy and Astrophysics

Astronomy

51

Planetary Nebulae, Radio Astronomy, Stellar Spectra, Supernova Remnants, Astronomical Maps, Linear Polarization, Microwaves, Radio Sources (Astronomy)

Scientific paper

The total power radiation, and its linearly polarized component, has been mapped at 2695 MHz from the Galactic radio source CTA 1 (G119.5+10.2) with a resolution of 4.4 arcmin. On the grounds of morphology, spectrum, and polarization characteristics, CTA 1 is confirmed as being a supernova remnant. The location of the boundary of the remnant is clarifed, and the total power structure and spectrum of the source are discussed in detail. High polarization percentages of about 40% are found for the radiation from some parts of the source. Possible depolarization of radiation from CTA 1 in the vicinity of the planetary nebula NGC 40 is noted. A catalog of 23 small-diameter radio sources in the field is given.

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