Sign on

SAO/NASA ADS Astronomy Abstract Service

· Find Similar Abstracts (with default settings below)
· Electronic Refereed Journal Article (HTML)
· Full Refereed Journal Article (PDF/Postscript)
· References in the article
· SIMBAD Objects (7)
· Also-Read Articles (Reads History)
·
· Translate This Page
Title:
X-ray spectroscopy of supernova remnants
Authors:
Ballet, Jean; Decourchelle, Anne
Affiliation:
AA(DSM/DAPNIA/SAp, Bt 709, CEA Saclay, 91191, Gif sur Yvette Cedex, France), AB(DSM/DAPNIA/SAp, Bt 709, CEA Saclay, 91191, Gif sur Yvette Cedex, France)
Publication:
New Astronomy Reviews, Volume 46, Issue 8-10, p. 507-511. (NewAR Homepage)
Publication Date:
07/2002
Origin:
ELSEVIER
Abstract Copyright:
(c) 2002 Elsevier Science B.V.
DOI:
10.1016/S1387-6473(02)00192-6
Bibliographic Code:
2002NewAR..46..507B

Abstract

The new generation X-ray telescopes launched in 1999 (Chandra and XMM-Newton) provide for the first time, good spatial and spectral resolution together, allowing to map emission lines of heavy elements in supernova remnants. In young supernova remnants this reflects nucleosynthesis in the progenitor, and gives access (in theory) to the absolute amounts of the main elements, as well as their radial and azimuthal repartition. With arcsecond resolution, Chandra is able to resolve the shocked gas in the radial direction in young supernova remnants. The radial profile of density and temperature between the forward and reverse shocks is directly related to the density-velocity profile after the explosion. Looking for modifications to the remnant's structure induced by cosmic ray acceleration is another area accessible to the modern X-ray telescopes. It should tell us whether a significant fraction of the kinetic energy is spent accelerating cosmic rays at the shock. The shocked region is then thinner and the shocked gas less hot.
Bibtex entry for this abstract   Preferred format for this abstract (see Preferences)
   

Find Similar Abstracts:

Use: Authors
Title
Abstract Text
Return: Query Results Return    items starting with number
Query Form
Database: Astronomy
Physics
arXiv e-prints
    


SAO/NASA ADS Homepage | ADS Sitemap | Query Form | Basic Search | Preferences | HELP | FAQ