Astronomy and Astrophysics – Astronomy
Scientific paper
Aug 1976
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976a%26a....51...21v&link_type=abstract
Astronomy and Astrophysics, vol. 51, no. 1, Aug. 1976, p. 21-29.
Astronomy and Astrophysics
Astronomy
25
Polarization (Waves), Polarized Electromagnetic Radiation, Radiant Flux Density, Radio Sources (Astronomy), Supernova Remnants, Extragalactic Radio Sources, Interstellar Gas, Planetary Nebulae, Signal To Noise Ratios
Scientific paper
The paper presents observations of the distribution of intensity and linear polarization over the radio source CTB 80 at 6 and 2.8 cm. The physical nature of the source is examined, particularly the relation between the strong central component and a ridgelike structure that extends across the northern half in the E-W direction. The structure, nonthermal spectrum, and polarization of the central component are found to be very similar to those of a supernova remnant, but the ridge is shown to be unlike any feature of any other SNR. It is suggested that the ridge may have resulted from expansion of the remnant shell into a dense interstellar cloud or, alternatively, that CTB 80 might be a nearby extragalactic radio source similar to Centaurus A.
Becker Robert H.
Kundu Mukul R.
Velusamy Thangasamy
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