Optical emission-line luminosity function models for populations of supernova remnants
Abstract
We present a basic model for the calculation of the luminosity distribution of supernova remnant populations. We construct theoretical H$\rm \alpha \,$and joint [S II]-H$\rm \alpha \,$luminosity functions for supernova remnants by combining prescriptions from a basic evolution model that provides the shock velocity and radius for SNRs of different age and pre-shock density, with shock excitation models that give the gas emissivity for shocks of different physical parameters. We assume a flat age distribution, and we explore the effect of different pre-shock density distributions or different magnetic parameters. We find a very good agreement between the shape of the model H$\rm \alpha \,$and the joint [S II]-H$\rm \alpha \,$luminosity functions and those measured from SNR surveys in nearby galaxies.
- Publication:
-
Monthly Notices of the Royal Astronomical Society
- Pub Date:
- August 2022
- DOI:
- 10.1093/mnras/stac1415
- arXiv:
- arXiv:2205.09130
- Bibcode:
- 2022MNRAS.514.3260K
- Keywords:
-
- ISM: supernova remnants;
- luminosity functions;
- Astrophysics - Astrophysics of Galaxies
- E-Print:
- 11 pages, Accepted for publication in MNRAS