Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

The Effect of Elemental Abundances on Fitting Supernova Remnant Models to Data

Version 1 : Received: 23 April 2022 / Approved: 27 April 2022 / Online: 27 April 2022 (05:17:30 CEST)

A peer-reviewed article of this Preprint also exists.

Leahy, D.A. The Effects of Elemental Abundances on Fitting Supernova Remnant Models to Data. Universe 2022, 8, 274. Leahy, D.A. The Effects of Elemental Abundances on Fitting Supernova Remnant Models to Data. Universe 2022, 8, 274.

Abstract

The X-ray emission from a supernova remnant (SNR) is a powerful diagnostic of the state of the shocked plasma, and, given a model, can be used to determine the energy of the explosion, the age of the SNR and the density of the surrounding medium. Observed properties are shock radius, electron temperature (kTe) and emission measure (EM) of the shocked-gas. The standard and XSPEC definitions have an important difference. The XSPEC definition is superior for SNRs, which have components with low hydrogen abundance. SNR model calculations are based on hydrodynamic solutions for fluid variables of density, pressure and velocity. The relations between fluid variables and kTe or EM depend on composition, ionization state and electron-ion temperature ratio (Te/TI). Here the effects of composition, ionization and Te/TI on standard and on XSPEC versions of kTe and EM are investigated.

Keywords

supernova remnants; supernova energetics; interstellar medium density

Subject

Physical Sciences, Astronomy and Astrophysics

Comments (0)

We encourage comments and feedback from a broad range of readers. See criteria for comments and our Diversity statement.

Leave a public comment
Send a private comment to the author(s)
* All users must log in before leaving a comment
Views 0
Downloads 0
Comments 0
Metrics 0


×
Alerts
Notify me about updates to this article or when a peer-reviewed version is published.
We use cookies on our website to ensure you get the best experience.
Read more about our cookies here.