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Title: Fermi-LAT and WMAP Observations of the Puppis A Supernova Remnant

Journal Article · · The Astrophysical Journal
 [1];  [2];  [3];  [3];  [4];  [5]
  1. NASA Goddard Space Flight Center (GSFC), Greenbelt, MD (United States)
  2. Max Planck Inst. for Nuclear Physics, Heidelberg (Germany); Heidelberg Univ. (Germany)
  3. Univ. of Bordeaux 1, Gradignan (France). Bordeaux-Gradignan Center of Nuclear Studies
  4. Alternative Energies and Atomic Energy Commission (CEA), Saclay (France). Astrophysics Service. CEA-IRFU/CNRS/Paris Diderot Univ. Lab. AIM
  5. Stanford Univ., CA (United States). Dept. of Physics. W. W. Hansen Experimental Physics Lab.; SLAC National Accelerator Lab., Menlo Park, CA (United States). Kavli Inst. for Particle Astrophysics and Cosmology

In this paper, we report the detection of GeV γ-ray emission from the supernova remnant (SNR) Puppis A with the Fermi Gamma-Ray Space Telescope. Puppis A is among the faintest SNRs yet detected at GeV energies, with a luminosity of only 2.7 × 1034 (D/2.2 kpc)2 erg s-1 between 1 and 100 GeV. The γ-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 (SED), from radio to γ-rays, using standard nonthermal emission mechanisms. To constrain the relativistic electron population we use 7 years of Wilkinson Microwave Anisotropy Probe data to extend the radio spectrum up to 93 GHz. Finally, both leptonic- and hadronic-dominated models can reproduce the nonthermal SED, requiring a total content of cosmic-ray electrons and protons accelerated in Puppis A of at least W CR ≈ (1-5) × 1049 erg.

Research Organization:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Organization:
USDOE; National Aeronautics and Space Administration (NASA); European Union (EU)
Contributing Organization:
Fermi-LAT Collaboration
Grant/Contract Number:
AC02-76SF00515; ERC-StG-259391
OSTI ID:
1356666
Journal Information:
The Astrophysical Journal, Vol. 759, Issue 2; ISSN 0004-637X
Publisher:
Institute of Physics (IOP)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 30 works
Citation information provided by
Web of Science

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Cited By (16)

The supernova remnant W44: Confirmations and challenges for cosmic-ray acceleration journal May 2014
Planck intermediate results : XXXI. Microwave survey of Galactic supernova remnants journal February 2016
First ground-based measurement of sub-20 GeV to 100 GeV γ -Rays from the Vela pulsar with H.E.S.S. II journal December 2018
THE SECOND FERMI LARGE AREA TELESCOPE CATALOG OF GAMMA-RAY PULSARS journal September 2013
FERMI LARGE AREA TELESCOPE THIRD SOURCE CATALOG journal June 2015
FERMI -LAT DETECTION OF PULSED GAMMA-RAYS ABOVE 50 GeV FROM THE VELA PULSAR journal December 2014
Evolution of High-energy Particle Distribution in Supernova Remnants journal March 2019
3FHL: The Third Catalog of Hard Fermi -LAT Sources journal September 2017
The Second Fermi Large area Telescope Catalog of Gamma-Ray Pulsars text January 2013
Planck intermediate results : XXIV. Constraints on variations in fundamental constants⋆ journal July 2015
3FHL: The Third Catalog of Hard Fermi -LAT Sources text January 2017
First ground-based measurement of sub-20 GeV to 100 GeV $\gamma$-Rays from the Vela pulsar with H.E.S.S. II text January 2018
Planck intermediate results. XXXI. Microwave survey of Galactic supernova remnants text January 2014
Fermi-LAT Detection of Pulsed Gamma-rays Above 50 GeV from the Vela Pulsar text January 2014
3FHL: The Third Catalog of Hard Fermi-LAT Sources text January 2017
Evolution of high-energy particle distribution in Supernova Remnants text January 2018

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