2019ApJ...879...66T

Query : 2019ApJ...879...66T

2019ApJ...879...66T - Astrophys. J., 879, 66-66 (2019/July-2)

Cosmic rays in superbubbles.

TOLKSDORF T., GRENIER I.A., JOUBAUD T. and SCHLICKEISER R.

Abstract (from CDS):

A solution of the transport equation for cosmic rays in turbulent magnetic fields in a spherically symmetric geometry is presented. The results are applied to particle propagation in superbubbles. In the fully analytical calculation, various energy-loss processes are considered. From the distribution function of the cosmic-ray particles, the distribution for pions from continuous losses is computed. Folding with the appropriate cross section yields the gamma-ray distribution. It is shown that in the case of efficient acceleration the volume-integrated π0-decay gamma-ray emission from the superbubble exhibits the characteristic hard differential number density spectrum N(Eγ)∝Eγ–0.29 at large gamma-ray energies, Eγ ≫ 70 MeV. This prediction is useful for identifying efficient superbubble cosmic-ray accelerators from gamma-ray observations.

Abstract Copyright: © 2019. The American Astronomical Society. All rights reserved.

Journal keyword(s): acceleration of particles - cosmic rays - gamma rays: ISM - ISM: bubbles

Simbad objects: 1

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Number of rows : 1
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 NAME Cyg Complex reg 20 32 +45.0           ~ 667 0

Query : 2019ApJ...879...66T

Basic data :
NAME Cyg Complex -- Region defined in the Sky
Other object types: otypes_help 		reg ()
ICRS coord. (ep=J2000) : 		20 32 00.0 +45 00 00 [ ] E ~
FK4 coord. (ep=B1950 eq=1950) : 		20 30 18.9 +44 49 46 [ ]
Gal coord. (ep=J2000) : 		083.0584 +03.1569 [ ]
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Identifiers (3) :
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NAME Cyg Complex NAME Cyg Region NAME Cygnus Region

References (667 between 1850 and 2026) (Total 667)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).
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