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

Journal Article · · The Astrophysical Journal (Online)
 [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)

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.

Research Organization:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Organization:
USDOE; National Aeronautics and Space Administration (NASA)
Grant/Contract Number:
AC02-76SF00515
OSTI ID:
1355676
Journal Information:
The Astrophysical Journal (Online), Vol. 818, Issue 2; ISSN 1538-4357
Publisher:
Institute of Physics (IOP)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 9 works
Citation information provided by
Web of Science

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Cited By (8)

Fermi Large Area Telescope Fourth Source Catalog journal March 2020
3FHL: The Third Catalog of Hard Fermi -LAT Sources journal September 2017
Evolution of High-energy Particle Distribution in Supernova Remnants journal March 2019
Fermi Large Area Telescope Fourth Source Catalog text January 2020
3FHL: The Third Catalog of Hard Fermi -LAT Sources text January 2017
Fermi Large Area Telescope Fourth Source Catalog collection January 2020
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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