FERMILARGE AREA TELESCOPE OBSERVATIONS OF SUPERNOVA REMNANTS INTERACTING WITH MOLECULAR CLOUDS

2010/02/28 by Daniel Castro, Patrick Slane · 1 citation
Physics and Astronomy · #Astronomy #Astrophysics #Astrophysics and Cosmic Phenomena #Cosmic ray #Dark Matter and Cosmic Phenomena #Fermi Gamma-ray Space Telescope #Gamma-ray bursts and supernovae #Maser #Molecular cloud #Physics #Spitzer Space Telescope #Supernova #Supernova remnant #Telescope #astro-ph.HE

paper · pdf · doi:10.1088/0004-637x/717/1/372

8 pages, 8 figures, 2 tables, accepted for publication in ApJ

arxiv created 2010/06/09 · openalex publication_date 2010/06/11 · arxiv updated 2015/05/18 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

We report the detection of γ-ray emission coincident with four supernova remnants (SNRs) using data from the Large Area Telescope on board the Fermi Gamma-ray Space Telescope . G349.7+0.2, CTB 37A, 3C 391, and G8.7−0.1 are SNRs known to be interacting with molecular clouds, as evidenced by observations of hydroxyl (OH) maser emission at 1720 MHz in their directions. SNR shocks are expected to be sites of cosmic-ray acceleration, and clouds of dense material can provide effective targets for production of γ-rays from π 0 decay. The observations reveal unresolved sources in the direction of G349.7+0.2, CTB 37A, and 3C 391, and a possibly extended source coincident with G8.7−0.1, all with significance levels greater than 10σ.

Citations

• Post-launch performance of the Fermi Large Area Telescope
• Nuclear enhancement factor in calculation of Galactic diffuse gamma-rays: A new estimate with DPMJET-3
• Three‐dimensional Model of Broadband Emission from Supernova Remnants Undergoing Nonlinear Diffusive Shock Acceleration
• Discovery of 35 New Supernova Remnants in the Inner Galaxy
• New Catalogs of Compact Radio Sources in the Galactic Plane
• X‐Ray Emission from PSR B1800−21, Its Wind Nebula, and Similar Systems
• Nonthermal X‐Ray Emission from the Shell‐Type Supernova Remnant G347.3−0.5
• Fermi Large Area Telescope Measurements of the Diffuse Gamma-Ray Emission at Intermediate Galactic Latitudes
• The ATNF Pulsar Catalogue

Cited by

• Search for Extended Sources in the Galactic Plane Using Six Years of Fermi-Large Area Telescope Pass 8 Data above 10 GeV

Related

• GeV Gamma Rays from Supernova Remnants Interacting with Molecular Clouds
• Discovery of diffuse γ-ray emission in the vicinity of G213.0-0.6: Supernova remnant versus massive star-forming region
• GeV Gamma-Rays from Molecular Clouds Illuminated by Particles Diffusing from the Adjacent Supernova Remnant G335.2+0.1 Confined in an Expanding Bubble
• Fermi-LAT detection of the supernova remnant G312.4-0.4 in the vicinity of 4FGL J1409.1-6121e
• Observations of supernova remnants and molecular clouds from the mm to the gamma-ray domain: bridging low and high energy cosmic rays