|
| | | | |
| | | |
| Stat |
Members: 3645
Articles: 2'500'096
Articles rated: 2609
19 April 2024 |
|
| | | | |
|
Article overview
| |
|
|
Fermi-LAT and WMAP observations of the Puppis A Supernova Remnant | | J.W. Hewitt
; M.-H. Grondin
; M. Lemoine-Goumard
; T. Reposeur
; J. Ballet
; T. Tanaka
; | | Date: |
16 Oct 2012 | | Abstract: | We report the detection of GeV gamma-ray emission from the supernova remnant
Puppis A with the Fermi Gamma-Ray Space Telescope. Puppis A is among the
faintest supernova remnants yet detected at GeV energies, with a luminosity of
only 2.7x10^34 (D/2.2 kpc)^2 erg/s between 1 and 100 GeV. The gamma-ray
emission from the remnant is spatially extended, with a morphology matching
that of the radio and X-ray emission, and is well described by a simple power
law with an index of 2.1. We attempt to model the broadband spectral energy
distribution, from radio to gamma-rays, using standard nonthermal emission
mechanisms. To constrain the relativistic electron population we use 7 years of
WMAP data to extend the radio spectrum up to 93 GHz. Both leptonic and hadronic
dominated models can reproduce the nonthermal spectral energy distribution,
requiring a total content of cosmic ray (CR) electrons and protons accelerated
in Puppis A of at least (1-5)x10^49 erg. | | Source: | arXiv, 1210.4474 | | Services: | Forum | Review | PDF | Favorites | |
|
|
No review found.
Did you like this article?
Note: answers to reviews or questions about the article must be posted in the forum section.
Authors are not allowed to review their own article. They can use the forum section.
browser Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)
|
| |
|
|
|
|
News, job offers and information for researchers and scientists:
| |
REGISTER