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Astron. Astrophys. 352, L103-L106 (1999)

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Letter to the Editor

New shell radio supernova remnant G16.2-2.7

S.A. Trushkin

Special Astrophysical Observatory, Niznij Arkhyz, 357147 Russia (satr@cats.sao.ru)

Received 11 October 1999 / Accepted 2 November 1999


The extended radio source G16.2-2.7 is detected as a new previously uncataloged Galactic supernova remnant. Its non-thermal radio spectrum has spectral index [FORMULA], with [FORMULA](1 GHz) = 2.08 Jy, as being measured with the RATAN-600 radio telescope. The NRAO VLA Sky Survey (NVSS) map at 1.4 GHz shows a shell-like bilateral structure. The similar smoothed image from the Effelsberg survey at 2.7 GHz is discussed. The angular diameter 17´ of a circular shell is fitted to brightness peaks meanwhile the outer diameter [FORMULA] and the width [FORMULA]R=[FORMULA] are fitted with the model of a spherical optically thin hollow shell. The surface brightness of G16.2-2.7: [FORMULA](1GHz)[FORMULA]W Hz-1m- 2 sr-1. The peaks in the shell arcs are highly polarized at 1.4 GHz.

Key words: stars: supernovae: general – ISM: supernova remnants – ISM: individual objects: G16.2-2.7 – radio continuum: ISM

Send offprint requests to: S.A. Trushkin

© European Southern Observatory (ESO) 1999

Online publication: December 2, 1999