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Title: FERMI LAT discovery of extended gamma-ray emissions in the vicinity of the HB 3 supernova remnant

Abstract

We report the discovery of extended gamma-ray emission measured by the Large Area Tele- scope (LAT) onboard the Fermi Gamma-ray Space Telescope in the region of the supernova rem- nant (SNR) HB 3 (G132.7+1.3) and the W3 HII complex adjacent to the southeast of the remnant. W3 is spatially associated with bright 12CO (J=1-0) emission. The gamma-ray emission is spatially correlated with this gas and the SNR. We discuss the possibility that gamma rays originate in inter- actions between particles accelerated in the SNR and interstellar gas or radiation fields. The decay of neutral pions produced in nucleon-nucleon interactions between accelerated hadrons and interstellar gas provides a reasonable explanation for the gamma-ray emission. The emission fromW3 is consistent with irradiation of the CO clouds by the cosmic rays accelerated in HB 3.

Authors:
 [1];  [1];  [2];  [3];  [4];  [5];  [6];  [3]
  1. Ibaraki Univ. (Japan)
  2. Commissariat a l'Energie Atomique et aux Energies Alternatives (CEA-Saclay), Gif-sur-Yvette (France)
  3. CNRS/IN2P3. Univ. Bordeaux (France)
  4. Univ. of Tokyo (Japan)
  5. Univ. of Maryland, College Park, MD (United States); NASA Goddard Space Flight Center (GSFC), Greenbelt, MD (United States)
  6. Kyoto Univ. (Japan)
Publication Date:
Research Org.:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org.:
USDOE; National Aeronautics and Space Administration (NASA)
OSTI Identifier:
1355676
Grant/Contract Number:  
AC02-76SF00515
Resource Type:
Accepted Manuscript
Journal Name:
The Astrophysical Journal (Online)
Additional Journal Information:
Journal Name: The Astrophysical Journal (Online); Journal Volume: 818; Journal Issue: 2; Journal ID: ISSN 1538-4357
Publisher:
Institute of Physics (IOP)
Country of Publication:
United States
Language:
English
Subject:
79 ASTRONOMY AND ASTROPHYSICS; cosmic rays; gamma rays; ISM; ISM supernova remnants; acceleration of particles

Citation Formats

Katagiri, H., Yoshida, K., Ballet, J., Grondin, M. -H., Hanabata, Y., Hewitt, J. W., Kubo, H., and Lemoine-Goumard, M. FERMI LAT discovery of extended gamma-ray emissions in the vicinity of the HB 3 supernova remnant. United States: N. p., 2016. Web. doi:10.3847/0004-637X/818/2/114.
Katagiri, H., Yoshida, K., Ballet, J., Grondin, M. -H., Hanabata, Y., Hewitt, J. W., Kubo, H., & Lemoine-Goumard, M. FERMI LAT discovery of extended gamma-ray emissions in the vicinity of the HB 3 supernova remnant. United States. doi:10.3847/0004-637X/818/2/114.
Katagiri, H., Yoshida, K., Ballet, J., Grondin, M. -H., Hanabata, Y., Hewitt, J. W., Kubo, H., and Lemoine-Goumard, M. Thu . "FERMI LAT discovery of extended gamma-ray emissions in the vicinity of the HB 3 supernova remnant". United States. doi:10.3847/0004-637X/818/2/114. https://www.osti.gov/servlets/purl/1355676.
@article{osti_1355676,
title = {FERMI LAT discovery of extended gamma-ray emissions in the vicinity of the HB 3 supernova remnant},
author = {Katagiri, H. and Yoshida, K. and Ballet, J. and Grondin, M. -H. and Hanabata, Y. and Hewitt, J. W. and Kubo, H. and Lemoine-Goumard, M.},
abstractNote = {We report the discovery of extended gamma-ray emission measured by the Large Area Tele- scope (LAT) onboard the Fermi Gamma-ray Space Telescope in the region of the supernova rem- nant (SNR) HB 3 (G132.7+1.3) and the W3 HII complex adjacent to the southeast of the remnant. W3 is spatially associated with bright 12CO (J=1-0) emission. The gamma-ray emission is spatially correlated with this gas and the SNR. We discuss the possibility that gamma rays originate in inter- actions between particles accelerated in the SNR and interstellar gas or radiation fields. The decay of neutral pions produced in nucleon-nucleon interactions between accelerated hadrons and interstellar gas provides a reasonable explanation for the gamma-ray emission. The emission fromW3 is consistent with irradiation of the CO clouds by the cosmic rays accelerated in HB 3.},
doi = {10.3847/0004-637X/818/2/114},
journal = {The Astrophysical Journal (Online)},
number = 2,
volume = 818,
place = {United States},
year = {2016},
month = {2}
}

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