SIMBAD references

2019MNRAS.483...70C - Mon. Not. R. Astron. Soc., 483, 70-118 (2019/February-2)

A catalogue of Galactic supernova remnants in the far-infrared: revealing ejecta dust in pulsar wind nebulae.

CHAWNER H., MARSH K., MATSUURA M., GOMEZ H.L., CIGAN P., DE LOOZE I., BARLOW M.J., DUNNE L., NORIEGA-CRESPO A. and RHO J.

Abstract (from CDS):

We search for far-infrared counterparts of known supernova remnants (SNRs) in the Galactic plane (10° < |l| < 60°) at 70-500 µm using the Herschel Infrared Galactic Plane Survey (Hi-GAL). Of 71 sources studied, we find that 29 (41 per cent) SNRs have a clear FIR detection of dust emission associated with the SNR. Dust from 8 of these is in the central region, and 4 indicate pulsar wind nebulae (PWNe) heated ejecta dust. A further 23 have dust emission in the outer shell structures which is potentially related to swept-up material. Many Galactic SNe have dust signatures but we are biased towards detecting ejecta dust in young remnants and those with a heating source (shock or PWN). We estimate the dust temperature and mass contained within three PWNe, G11.2-0.3, G21.5-0.9, and G29.7-0.3, using modified blackbody fits. To more rigorously analyse the dust properties at various temperatures and dust emissivity index β, we use point process mapping (PPMAP). We find significant quantities of cool dust (at 20-40 K) with dust masses of Md = 0.34 ± 0.14 M, Md = 0.29 ± 0.08 M, and Md = 0.51 ± 0.13 M for G11.2-0.3, G21.5-0.9, and G29.7-0.3, respectively. We derive the dust emissivity index for the PWN ejecta dust in G21.5-0.3 to be β= 1.4 ±0.5 compared to dust in the surrounding medium where β= 1.8 ±0.1.

Abstract Copyright: © 2018 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): stars - ISM: supernova remnants - infrared: ISM - submillimetre: ISM

Status in Simbad:  being processed

CDS comments: The reference for PG11 is 2011, AJ, 142, 47 and the reference for Klochkov 2016 is 2016, A&A, 592, L12.

Simbad objects: 97

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2019.10.19-07:46:12

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