Multiwavelength Signatures of Cosmic Ray Acceleration by Young Supernova Remnants

Journal Article · Wed Dec 24 04:00:00 EST 2008 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3076632· OSTI ID:21255149

Vink, Jacco ^[1]

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1. Astronomical Institute Utrecht, Utrecht University, P.O. Box 80000, 3508TA Utrecht (Netherlands)

An overview is given of multiwavelength observations of young supernova remnants, with a focus on the observational signatures of efficient cosmic ray acceleration. Some of the effects that may be attributed to efficient cosmic ray acceleration are the radial magnetic fields in young supernova remnants, magnetic field amplification as determined with X-ray imaging spectroscopy, evidence for large post-shock compression factors, and low plasma temperatures, as measured with high resolution optical/UV/X-ray spectroscopy. Special emphasis is given to spectroscopy of post-shock plasma's, which offers an opportunity to directly measure the post-shock temperature. In the presence of efficient cosmic ray acceleration the post-shock temperatures are expected to be lower than according to standard equations for a strong shock. For a number of supernova remnants this seems indeed to be the case.

• OSTI ID: 21255149
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1085; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

79 ASTRONOMY AND ASTROPHYSICS
99 GENERAL AND MISCELLANEOUS
ACCELERATION
AMPLIFICATION
COMPRESSION
COSMIC RADIATION
COSMIC X-RAY SOURCES
ELECTRON TEMPERATURE
EQUATIONS
ION TEMPERATURE
MAGNETIC FIELDS
PLASMA
RESOLUTION
SUPERNOVA REMNANTS
X RADIATION
X-RAY SPECTROSCOPY