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1986•Monthly Notices of the Royal Astronomical SocietyOpen access

G70.68+1.20: a thermal source, not a supernova remnant

David A. Green

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Abstract

G70.68+1.20 is a small shell source, ∼20 arcsec in extent, which has recently been proposed as a very young galactic supernova remnant. 5-GHz observations with the 5-km telescope at a resolution of ∼2×4 arcsec2 (RA×Dec) are presented, and discussed together with other radio, optical and IR data. These favour the interpretation that the source is thermal, rather than a young supernova remnant.

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G70.68+1.20 is a small shell source, ∼20 arcsec in extent, which has recently been proposed as a very young galactic supernova remnant. 5-GHz observations with the 5-km telescope at a resolution of ∼2×4 arcsec2 (RA×Dec) are presented, and discussed together with other radio, optical and IR data. These favour the interpretation that the source is thermal, rather than a young supernova remnant.

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Available abstract

G70.68+1.20 is a small shell source, ∼20 arcsec in extent, which has recently been proposed as a very young galactic supernova remnant. 5-GHz observations with the 5-km telescope at a resolution of ∼2×4 arcsec2 (RA×Dec) are presented, and discussed together with other radio, optical and IR data. These favour the interpretation that the source is thermal, rather than a young supernova remnant.

Key concepts: Physics, Supernova remnant, Near-Earth supernova, Astrophysics, Supernova, Astronomy, Telescope, Radio telescope

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