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

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

Abstract

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 , with (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 and the width R= are fitted with the model of a spherical optically thin hollow shell. The surface brightness of G16.2-2.7: (1GHz)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

SIMBAD Objects

Contents

• 1. Introduction
• 2. The radio maps
• 3. Radio spectrum
• 4. Conclusions
• Acknowledgements
• References

© European Southern Observatory (ESO) 1999

Online publication: December 2, 1999
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