A new candidate supernova remnant G 70.5+1.9
Abstract
A compact complex of line emission filaments in the galactic plane has the appearance of those expected of an evolved supernova remnant, although non-thermal radio and X-ray emission have not yet been detected. This optical emission line region has now been observed with deep imagery and both low and high-dispersion spectroscopy. Diagnostic diagrams of the line intensities from the present spectra and the new kinematical observations both point to a supernova origin. However, several features of the nebular complex still require an explanation within this interpretation.
- Publication:
-
Astronomy and Astrophysics
- Pub Date:
- August 2009
- DOI:
- 10.1051/0004-6361/200912211
- arXiv:
- arXiv:0905.3480
- Bibcode:
- 2009A&A...503..129M
- Keywords:
-
- ISM: general;
- ISM: supernova remnants;
- ISM: individual objects: G 70.5+1.9;
- Astrophysics - Astrophysics of Galaxies;
- Astrophysics - High Energy Astrophysical Phenomena
- E-Print:
- 13 pages, 6 figures, accepted for publication in A&