Computer Science – Sound
Scientific paper
Jul 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aipc.1248...77p&link_type=abstract
X-RAY ASTRONOMY 2009; PRESENT STATUS, MULTI-WAVELENGTH APPROACH AND FUTURE PERSPECTIVES: Proceedings of the International Confer
Computer Science
Sound
Pulsars, Doppler Broadening, Neutron Stars, X-Ray Binary Stars, Pulsars, Interaction Of Fluid Motion And Sound, Doppler Effect, And Sound In Flow Ducts, Neutron Stars, X-Ray Binaries
Scientific paper
The capabilities of XMM-Newton have been fully exploited to detect a broadened iron Kα emission line from the 2.5 ms Accreting Millisecond Pulsar, SAX J1808.4-3658. The energy of the transition is compatible with fluorescence from neutral/lowly ionized iron. The observed large width (FWHM more than 1 keV) can be explained through Doppler and relativistic broadening from the inner rings of an accretion disc close to the NS. From a fit of the line shape with a diskline model we obtain an estimate of the inner disc radius of 18.0-5.6+7.6 km for a 1.4 Msolar neutron star. The disc is therefore truncated inside the corotation radius (31 km for SAX J1808.4-3658), in agreement with the observation of coherent pulsations. From our estimate of the inner disc radius, we infer that the magnetic field of the neutron star is in the range 1-5×108 G.
Burderi Luciano
D'Aì Antonino
di Salvo Tiziana
Iaria Rosario
Menna Maria Teresa
No associations
LandOfFree
A relativistically broadened iron line from an Accreting Millisecond Pulsar 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 A relativistically broadened iron line from an Accreting Millisecond Pulsar, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A relativistically broadened iron line from an Accreting Millisecond Pulsar will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1644235