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X-ray Emission from Radiative Shocks in Type II Supernovae
Stockholm University.
Stockholm University.
2006 (English)In: Proceedings of the X-ray Universe 2005, Vols 1 and 2, 2006, Vol. 604, 373-374 p.Conference paper, Published paper (Refereed)
Abstract [en]

A numerical model is presented which calculates the Xray emission from radiative shocks in supernovae. Type IIL and Type IIn supemovae generally have a sufficiently dense circumstellar medium for the interaction between the supernova ejecta and circumstellar medium to be strong, leading to substantial X-ray emission already a few days after the explosion. Assuming the flow is stationary, our model combines hydrodynamic calculations with time dependent ionization balance and multi-level calculations. We find large differences between the self-consistent, hydrodynamic model and simple one- or two-temperature fits. The dependence of the resulting spectrum on shock velocity and chemical composition are discussed, as well as the difference between spectra produced by this model and single-temperature spectra. The applicability of our model for various types of supernovae is discussed, and examples of applications to observations are given.

Place, publisher, year, edition, pages
2006. Vol. 604, 373-374 p.
Series
ESA Special Publication, ISSN 0379-6566 ; 1
Keyword [en]
supernovae : general; stars : circumstellar matter; X-rays : supernovae; hydrodynamics
National Category
Astronomy, Astrophysics and Cosmology
Identifiers
URN: urn:nbn:se:kth:diva-86988ISI: 000236905300110ISBN: 978-929092915-4 (print)OAI: oai:DiVA.org:kth-86988DiVA: diva2:502899
Conference
X-ray Universe 2005; Madrid; 26 September 2005 through 30 September 2005
Note
QC 20120217Available from: 2012-02-14 Created: 2012-02-14 Last updated: 2012-02-17Bibliographically approved

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Nymark, Tanja K.
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CiteExportLink to record
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  • apa
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