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Fermi-lat and wmap observations of the puppis a supernova remnant
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Hewitt, John William Reposeur, T. Tanaka, T. Lemoine-Goumard, M. Grondin, M. H. Ballet, J. |
| Copyright Year | 2012 |
| Description | 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 2.7Ã10(exp 34) (D/2.2 kpc)(exp 2) erg s(exp â1) 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 WCR is approx. (1 - 5)Ã10 (exp 49) erg. |
| File Size | 586661 |
| Page Count | 25 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20140017368 |
| Archival Resource Key | ark:/13960/t3033v44v |
| Language | English |
| Publisher Date | 2012-10-16 |
| Access Restriction | Open |
| Subject Keyword | Observations Remnant Wmap Gamma Ray Spectra Protons Hadrons Supernova Remnants Bremsstrahlung Spectral Energy Distribution Luminosity Relativistic Particles Compton Effect Nonthermal Radiation Fermi Gamma-ray Space Telescope Cosmic Rays Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
