Open AccessΣ– D relation for supernova remnants and its dependence on the density of the interstellar medium
Author(s) -
Arbutina B.,
Urošević D.
Publication year - 2005
Publication title -
monthly notices of the royal astronomical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.058
H-Index - 383
eISSN - 1365-2966
pISSN - 0035-8711
DOI - 10.1111/j.1365-2966.2005.09033.x
Subject(s) - physics , interstellar medium , supernova , astrophysics , context (archaeology) , molecular cloud , surface brightness , relation (database) , balmer series , interstellar cloud , astronomy , emission spectrum , galaxy , stars , paleontology , biology , spectral line , database , computer science
ABSTRACT During the last couple of decades of work on the Σ– D (radio surface brightness to diameter) relation for supernova remnants (SNRs), it has been generally accepted that no single Σ– D relation can be constructed for all SNRs. However, it may still be possible to construct the relations for some classes of SNRs. In our previous paper we analysed Σ– D relation(s) for remnants in the dense environments of molecular clouds. The aim of this paper is to examine, in the same context, a class of oxygen‐rich SNRs, and to extend the analysis to remnants evolving in lower‐density interstellar media, namely Balmer‐dominated SNRs. We have obtained good relations with certain similarities to our previous findings – similarities that emphasize, again, the role of ambient density in the evolution of SNRs.