Journal
ASTRONOMY & ASTROPHYSICS
Volume 435, Issue 1, Pages L17-L20Publisher
EDP SCIENCES S A
DOI: 10.1051/0004-6361:200500105
Keywords
gamma-rays : observations; ISM : supernova remnants; pulsar wind nebula; ISM : individual objects : PSRB1509-58 ISM : individual objects : G320.4-1.2
Categories
Ask authors/readers for more resources
The Supernova Remnant MSH 15-52 has been observed in very high energy (VHE) gamma-rays using the HESS 4-telescope array located in Namibia. A gamma-ray signal is detected at the 25 sigma level during an exposure of 22.1 h live time. The image reveals an elliptically shaped emission region around the pulsar PSRB1509 - 58, with semi-major axis similar to 6' in the NW-SE direction and semi-minor axis similar to 2'. This morphology coincides with the diffuse pulsar wind nebula as observed at X-ray energies by ROSAT. The overall energy spectrum from 280 GeV up to 40 TeV can be fitted by a power law with photon index Gamma = 2.27 +/- 0.03(stat) +/- 0.20(syst). The detected emission can be plausibly explained by inverse Compton scattering of accelerated relativistic electrons with soft photons.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available