ON THE CONTINUUM RADIO SPECTRUM OF CAS A: POSSIBLE EVIDENCE OF NONLINEAR PARTICLE ACCELERATION

ON THE CONTINUUM RADIO SPECTRUM OF CAS A: POSSIBLE EVIDENCE OF NONLINEAR PARTICLE ACCELERATION

ABSTRACT The integrated radio spectrum of Cassiopeia A in continuum was analyzed with special emphasis on possible high-frequency spectral curvature. We conclude that the most probable scenario is that Planck's new data reveal the imprint of nonlinear particle acceleration in the case of this y...

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Veröffentlicht in:The Astrophysical journal 2015-06, Vol.805 (2), p.1-6
Hauptverfasser: Oni, D., Uroševi, D.
Format: Artikel
Sprache:eng
Schlagworte:
acceleration of particles
Cassiopeia A
Continuums
ISM: individual objects (Cas A)
ISM: supernova remnants
Mathematical analysis
Nonlinearity
Particle acceleration
radiation mechanisms: non-thermal
Radio
radio continuum: ISM
Spectra
Supernova remnants
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Zusammenfassung:ABSTRACT The integrated radio spectrum of Cassiopeia A in continuum was analyzed with special emphasis on possible high-frequency spectral curvature. We conclude that the most probable scenario is that Planck's new data reveal the imprint of nonlinear particle acceleration in the case of this young Galactic supernova remnant.
ISSN:0004-637X
1538-4357
1538-4357
DOI:10.1088/0004-637X/805/2/119