Niculescu-Duvaz, M;
Barlow, MJ;
Bevan, A;
Milisavljevic, D;
De Looze, I;
(2021)
The dust mass in Cassiopeia A from infrared and optical line flux differences.
Monthly Notices of the Royal Astronomical Society
, 504
(2)
pp. 2133-2145.
10.1093/mnras/stab932.
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Abstract
The large quantities of dust that have been found in a number of high redshift galaxies have led to suggestions that core-collapse supernovae (CCSNe) are the main sources of their dust and have motivated the measurement of the dust masses formed by local CCSNe. For Cassiopeia A, an oxygen-rich remnant of a Type IIb CCSN, a dust mass of 0.6-1.1 M⊙ has already been determined by two different methods, namely (a) from its far-infrared spectral energy distribution and (b) from analysis of the red-blue emission line asymmetries in its integrated optical spectrum. We present a third, independent, method for determining the mass of dust contained within Cas A. This compares the relative fluxes measured in similar apertures from [O III] far-infrared and visual-region emission lines, taking into account foreground dust extinction, in order to determine internal dust optical depths, from which corresponding dust masses can be obtained. Using this method we determine a dust mass within Cas A of at least 0.99+0.10−0.09 M⊙
| Type: | Article |
|---|---|
| Title: | The dust mass in Cassiopeia A from infrared and optical line flux differences |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1093/mnras/stab932 |
| Publisher version: | https://doi.org/10.1093/mnras/stab932 |
| Language: | English |
| Additional information: | Copyright 2021 The Author(s). Published by Oxford University Press on behalf of Royal Astronomical SocietyPublished by Oxford University Press on behalf of Royal Astronomical Society. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited. |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10126235 |
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