A complete catalogue of dusty supernova remnants in the Galactic plane

April 2020 • 2020MNRAS.493.2706C

Authors • Chawner, H. • Gomez, H. L. • Matsuura, M. • Smith, M. W. L. • Papageorgiou, A. • Rho, J. • Noriega-Crespo, A. • De Looze, I. • Barlow, M. J. • Cigan, P. • Dunne, L. • Marsh, K.

Abstract • We search for far-infrared (FIR) counterparts of known supernova remnants (SNRs) in the Galactic plane (360° in longitude and $b = \pm \, 1^{\circ }$ ) at 70-500 μm with Herschel. We detect dust signatures in 39 SNRs out of 190, made up of 13 core-collapse supernovae (CCSNe), including 4 Pulsar Wind Nebulae (PWNe), and 2 Type Ia SNe. A further 24 FIR detected SNRs have unknown types. We confirm the FIR detection of ejecta dust within G350.1-0.3, adding to the known sample of ∼ 10 SNRs containing ejecta dust. We discover dust features at the location of a radio core at the centre of G351.2+0.1, indicating FIR emission coincident with a possible Crab-like compact object, with dust temperature and mass of T_d = 45.8 K and M_d = 0.18 M_⊙, similar to the PWN G54.1+0.3. We show that the detection rate is higher among young SNRs. We produce dust temperature maps of 11 SNRs and mass maps of those with distance estimates, finding dust at temperatures $15\, \lesssim \, T_d\, \lesssim \, 40$ K. If the dust is heated by shock interactions the shocked gas must be relatively cool and/or have a low density to explain the observed low grain temperatures.

Links

• SIMBAD http://simbad.u-strasbg.fr/simbo.pl?bibcode=2020MNRAS.493.2706C
• PDF http://academic.oup.com/mnras/pdf-lookup/doi/10.1093/mnras/staa221
• PREPRINT http://arxiv.org/abs/2001.05504
• DATA http://archives.esac.esa.int/hsa/whsa/?ACTION=PUBLICATION&ID=2020MNRAS.493.2706C
• DATA https://irsa.ipac.caltech.edu/bibdata/2020/C/2020MNRAS.493.2706C.html
• ELECTR https://doi.org/10.1093%2Fmnras%2Fstaa221