A modified theoretical Σ − D relation for supernova remnants: I. The case of constant temperature within the supernova remnant-Reference-Cited by-同舟云学术

A modified theoretical Σ − D relation for supernova remnants: I. The case of constant temperature within the supernova remnant

Published:2003 Issue:166 Volume: Page:61-66
ISSN:1450-698X
Container-title:Serbian Astronomical Journal
language:en
Short-container-title:SERBIAN ASTRON J

Author:

Urosevic Dejan¹,Djuric N.²,Panuti T.³

Affiliation:

1. Katedra za astronomiju, Matematički fakultet, Univerzitet u Beogradu

2. Institute for Astrophysics, Department of Physics and Astronomy, University of New Mexico, Yale Blvd., N.E., Albuquerque, USA

3. MIT Center for Space Research, Massachusetts Avenue, Cambridge, USA

Abstract

We present a modification of the theoretical ? ? D relation for supernova remnants (SNRs) in the adiabatic expansion phase. This modification is based on the convolution of the relation first derived by Shklovsky with the ? ? D relation derived in this paper for thermal bremsstrahlung radiation from the ionized gas cloud. We adopt McKee & Ostriker?s model for the components of the interstellar medium as part of our derivation. The modified Shklovsky theory agrees well with empirical results. Kesteven?s modified theoretical relation gives the best agreement with the updated Galactic empirical ? ? D relation.

Publisher

National Library of Serbia

Subject

Astronomy and Astrophysics

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