A new candidate supernova remnant G 70.5+1.9
arXiv:0905.3480 · doi:10.1051/0004-6361/200912211
Abstract
A compact complex of line emission filaments in the galactic plane has the appearance of those expected of an evolved supernova remnant though 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.
13 pages, 6 figures, accepted for publication in A&A