Broad relativistic iron emission line observed in SAX J1808.4-3658 Export

@article{citeulike:3923944, abstract = {During the September-October 2008 outburst of the accreting millisecond pulsar SAX J1808.4-3658, the source was observed by both Suzaku and XMM-Newton approximately 1 day apart. Spectral analysis reveals a broad relativistic Fe K-alpha emission line which is present in both data-sets, as has recently been reported for other neutron star low-mass X-ray binaries. The properties of the Fe K line observed during each observation are very similar. From modeling the Fe line, we determine the inner accretion disk radius to be 13.2 +/- 2.5 GM/c^2. The inner disk radius measured from the Fe K line suggests that the accretion disk is not very receded in the island state. If the inner disk (as measured by the Fe line) is truncated at the magnetospheric radius this implies a magnetic field strength of \~{}3E8 G at the magnetic poles, consistent with other independent estimates.}, archivePrefix = {arXiv}, author = {Cackett, E. M. and Altamirano, D. and Patruno, A. and Miller, J. M. and Reynolds, M. and Linares, M. and Wijnands, R.}, citeulike-article-id = {3923944}, citeulike-linkout-0 = {http://arxiv.org/abs/0901.3142}, citeulike-linkout-1 = {http://arxiv.org/pdf/0901.3142}, day = {20}, eprint = {0901.3142}, keywords = {1808, lmxb}, month = {Jan}, posted-at = {2009-01-23 05:14:10}, priority = {2}, title = {Broad relativistic iron emission line observed in SAX J1808.4-3658}, url = {http://arxiv.org/abs/0901.3142}, year = {2009} }

TY - JOUR ID - citeulike:3923944 L3 - citeulike-article-id:3923944 N2 - During the September-October 2008 outburst of the accreting millisecond pulsar SAX J1808.4-3658, the source was observed by both Suzaku and XMM-Newton approximately 1 day apart. Spectral analysis reveals a broad relativistic Fe K-alpha emission line which is present in both data-sets, as has recently been reported for other neutron star low-mass X-ray binaries. The properties of the Fe K line observed during each observation are very similar. From modeling the Fe line, we determine the inner accretion disk radius to be 13.2 +/- 2.5 GM/c^2. The inner disk radius measured from the Fe K line suggests that the accretion disk is not very receded in the island state. If the inner disk (as measured by the Fe line) is truncated at the magnetospheric radius this implies a magnetic field strength of ~3E8 G at the magnetic poles, consistent with other independent estimates. TI - Broad relativistic iron emission line observed in SAX J1808.4-3658 KW - 1808 KW - lmxb AU - Cackett, EM AU - Altamirano, D AU - Patruno, A AU - Miller, JM AU - Reynolds, M AU - Linares, M AU - Wijnands, R PY - 2009/Jan/20/ UR - http://arxiv.org/abs/0901.3142 ER -