GeV γ-ray emission detected by Fermi-lat probably associated with the thermal composite supernova remnant Kesteven 41 in a molecular environment

Journal Article · Mon Aug 10 00:00:00 EDT 2015 · Astrophysical Journal

DOI:https://doi.org/10.1088/0004-637X/809/1/102· OSTI ID:22879430

Liu, Bing; Chen, Yang; Zhang, Xiao; Zhang, Gao-Yuan ^[1]; Xing, Yi ^[2]; Pannuti, Thomas G. ^[3]

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1. Department of Astronomy, Nanjing University, 163 Xianlin Avenue, Nanjing 210023 (China)
2. Key Laboratory for Research in Galaxies and Cosmology, Shanghai Astronomical Observatory, Chinese Academy of Sciences, 80 Nandan Road, Shanghai 200030 (China)
3. Space Science Center, Department of Earth and Space Sciences, Morehead State University, 235 Martindale Drive, Morehead, KY 40351 (United States)

Hadronic emission from supernova remnant (SNR)–molecular cloud (MC) association systems has been widely regarded as a probe of shock-accelerated cosmic-ray protons. Here, we report on the detection of a γ-ray emission source with a significance of 24σ in 0.2–300 GeV, projected to lie to the northwest of the thermal composite SNR Kesteven 41, using 5.6 years of Fermi-Large Area Telescope (LAT) observation data.

• OSTI ID: 22879430
• Journal Information: Astrophysical Journal, Vol. 809, Issue 1; Other Information: Country of input: International Atomic Energy Agency (IAEA); ISSN 0004-637X
• Country of Publication: United Kingdom
• Language: English

Related Subjects

79 ASTROPHYSICS
COSMOLOGY AND ASTRONOMY
ACCELERATION
CLOUDS
COSMIC RADIATION
DETECTION
EMISSION
GAMMA RADIATION
GEV RANGE
PARTICLES
PROBES
PROTONS
SUPERNOVA REMNANTS
TELESCOPES