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2007MNRAS.374.1441S - Mon. Not. R. Astron. Soc., 374, 1441-1448 (2007/February-1)
G315.1+2.7: a new Galactic supernova remnant from the AAO/UKST Hα survey.
STUPAR M., PARKER Q.A. and FILIPOVIC M.D.
Abstract (from CDS):
There is also an excellent positional coincidence between the new Hα filament and the north-east radio arc of G315.1+2.7 seen at several frequencies. Careful scrutiny of the low-resolution but high-sensitivity Southern Hα Sky Survey Atlas also revealed a low-level but distinct optical emission arc. This arc precisely correlates with the large, 2.5°, NS angular extent of the proposed new SNR also seen as a fractured structure in the extant radio data. G315.1+2.7 was detected previously at 2400 and 4800 MHz and at 408 and 1420 MHz. We also identified associated radio emission at 843 MHz from the now publicly available Sydney University Molonglo Sky Survey. On the basis of optical imaging and spectra and radio observations at five frequencies, we identify G315.1+2.7 as a new Galactic SNR. The large projected angular extent of the new remnant, together with the distance estimate of ∼1.7 kpc and diameter of ∼80 pc, make G315.1+2.7 one of the largest remnants known.
Abstract Copyright: 2007 The Authors. Journal compilation © 2007 RAS
Journal keyword(s): surveys - supernova remnants
Simbad objects: 9
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