Authors: Vukotić, Branislav
Ćiprijanović, Aleksandra 
Vučetić, M.
Onić, Dušan
Urosević, Dejan
Title: Updated radio Σ-D relation for galactic supernova remnants-ii
Journal: Serbian Astronomical Journal
Issue: 199
First page: 23
Last page: 37
Issue Date: 1-Jan-2019
Rank: M23
ISSN: 1450-698X
DOI: 10.2298/SAJ1999023V
In this paper we present the updated empirical radio surface-brightness-to-diameter Σ-D relation for Galactic supernova remnants (SNRs) calibrated using 110 SNRs with reliable distances. We apply orthogonal fitting procedure and kernel density smoothing in the Σ-D plane and compare the re-sults with the latest theoretical Σ-D relations derived from simulations of radio evolution of SNRs. We argue that the best agreement between the empirical and simulated Σ-D relations is achieved if the mixed-morphology SNRs and SNRs of both, low brightness and small diameter, are ltered out from the calibration sample. The distances to 5 newly discovered remnants and 27 new candidates for shell SNRs are estimated from our full and ltered calibration samples.
Keywords: Astronomical data bases: miscellaneous | ISM: supernova remnants | Methods: data analysis | Methods: statistical | Radio continuum: ISM
Publisher: Astronomical Observatory
Project: Emission nebula: structure and evolution 

Show full item record


checked on Jun 21, 2024

Page view(s)

checked on May 9, 2024

Google ScholarTM




Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.