Astronomy and Astrophysics – Astrophysics – Galaxy Astrophysics
Scientific paper
2010-05-05
Astronomy and Astrophysics
Astrophysics
Galaxy Astrophysics
Accepted for publication in A&A, 9 pages, 15 figures
Scientific paper
We present an X-ray analysis and a model of the nonthermal emission of the pulsar wind nebula (PWN) MSH15-52. We analyzed XMM-Newton data to obtain the spatially resolved spectral parameters around the pulsar PSRB1509-58. A steepening of the fitted power-law spectra and decrease in the surface brightness is observed with increasing distance from the pulsar. In the second part of this paper, we introduce a model for the nonthermal emission, based on assuming the ideal magnetohydrodynamic limit. This model is used to constrain the parameters of the termination shock and the bulk velocity of the leptons in the PWN. Our model is able to reproduce the spatial variation of the X-ray spectra. The parameter ranges that we found agree well with the parameter estimates found by other authors with different approaches. In the last part of this paper, we calculate the inverse Compton emission from our model and compare it to the emission detected with the H.E.S.S. telescope system. Our model is able to reproduce the flux level observed with H.E.S.S., but not the spectral shape of the observed TeV {\gamma}-ray emission.
Büsching Ingo
de Jager Ocker C.
Eger Peter
Schöck Fabian Matthias
Vorster M. J.
No associations
LandOfFree
Spatially resolved XMM-Newton analysis and a model of the nonthermal emission of MSH 15-52 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 Spatially resolved XMM-Newton analysis and a model of the nonthermal emission of MSH 15-52, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spatially resolved XMM-Newton analysis and a model of the nonthermal emission of MSH 15-52 will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-437648