A complete catalogue of dusty supernova remnants in the Galactic plane. Issue 2 (1st February 2020)

• Record Type: Journal Article
• 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
• Is Part Of: Monthly notices of the Royal Astronomical Society. Volume 493:Issue 2(2020)
• Page Start: 2706
• Page End: 2744
• Publication Date: 2020-02-01
• Subjects: ISM: supernova remnants -- infrared: ISM -- submillimetre: ISM; Astronomy -- Periodicals; Periodicals; 520.5
• DOI: 10.1093/mnras/staa221
• Languages: English
• ISSNs: 0035-8711

Abstract

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 μ m 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 Td = 45.8 K and Md = 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.