Astronomy and Astrophysics – Astrophysics
Scientific paper
2003-08-07
Astrophys.J.595:L1-L4,2003
Astronomy and Astrophysics
Astrophysics
5 pages, 4 figures, 2 tables. Accepted by ApJL
Scientific paper
10.1086/378844
We report the first localization of diffuse, non-thermal, X-ray emission from a nearby galaxy cluster. Using Chandra data, we have isolated a diffuse non-thermal X-ray component with a photon index, Gamma_ X = 2.21 +0.14 -0.15 and a flux of 9.5 +1.1 -2.5 x 10^-5 photons cm^-2 s^-1 keV^-1 at 1 keV, that extends from ~1'.5 to ~2'.5 to the south of the X-ray flux peak. Comparison to simulations implies that the diffuse non-thermal emission is produced by primary electrons, accelerated at shocks to relativistic velocities. Using these results and the flux and hardness maps produced with data from the Chandra Advanced CCD Imaging Spectrometer, we conclude that a smaller subclump coming from the north merged with IC1262. The offset of the cD galaxy from the X-ray peak and large peculiar velocity indicate that the subclump's impact parameter was to the west and on the near side of IC1262.
Henriksen Mark J.
Hudson Daniel S.
No associations
LandOfFree
Diffuse Non-thermal X-ray Emission: Evidence for Cosmic-ray Acceleration at the Shock Front in IC1262 does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Diffuse Non-thermal X-ray Emission: Evidence for Cosmic-ray Acceleration at the Shock Front in IC1262, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Diffuse Non-thermal X-ray Emission: Evidence for Cosmic-ray Acceleration at the Shock Front in IC1262 will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-4376