A SELF-CONSISTENT EXPLANATION OF TeV EMISSIONS FROM HESS J1640-465 AND HESS J1641-463

Journal Article · Sat Oct 10 00:00:00 EDT 2015 · Astrophysical Journal

DOI:https://doi.org/10.1088/0004-637X/812/1/32· OSTI ID:22518856

Tang, Yunyong ^[1]; Yang, Chuyuan; Wang, Jiancheng ^[2]; Zhang, Li ^[3]

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1. Department of Physical Science and Technology, Kunming University, Kunming 650214 (China)
2. Yunnan Observatories, Chinese Academy of Sciences, Kunming 650011 (China)
3. Department of Astronomy, Key Laboratory of Astroparticle Physics of Yunnan Province, Yunnan University, Kunming 650091 (China)

The bright TeV source HESS J1640-465 is positionally coincident with the young supernova remnant (SNR) G338.3-0.0, and the nearby HESS J1641-463 with TeV gamma-ray emission seems to be closely associated with it. Based on the nonlinear diffusion shock acceleration model, we explore the emission from these two TeV sources, the particle diffusion is assumed to be different inside and outside the absorbing boundary of the particles accelerated in the SNR shock. The results indicate that (1) the GeV–TeV emission from the region of the HESS J1640-465 is produced as a result of the particle acceleration inside the SNR G338.3-0.0 and (2) the runaway cosmic-ray particles outside the SNR are interacting with the nearby dense molecular cloud (MC) at the region of the HESS J1641-463, corresponding π{sup 0} decay gamma-ray in proton–proton collision contribute to the TeV emission from the HESS J1641-463. Also, we investigate the possible X-ray emission in MC from the synchrotron procedure by secondary e{sup ±} produced through escaped protons interaction with the MC.

• OSTI ID: 22518856
• Journal Information: Astrophysical Journal, Vol. 812, Issue 1; Other Information: Country of input: International Atomic Energy Agency (IAEA); ISSN 0004-637X
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
79 ASTROPHYSICS
COSMOLOGY AND ASTRONOMY
ACCELERATION
COSMIC ELECTRONS
COSMIC GAMMA SOURCES
COSMIC PIONS
COSMIC POSITRONS
COSMIC X-RAY SOURCES
DIFFUSION
GEV RANGE
NONLINEAR PROBLEMS
PAIR PRODUCTION
PARTICLE DECAY
PIONS NEUTRAL
PROTON-PROTON INTERACTIONS
SUPERNOVA REMNANTS
TEV RANGE