TY - JOUR
T1 - X-ray mapping of the stellar wind in the binary PSR J2032+4127/MT91 213
Y1 - 2018
A1 - Petropoulou, M.
A1 - Vasilopoulos, G.
A1 - Christie, I. M.
A1 - Giannios, D.
A1 - Coe, M. J.
KW - Astrophysics - High Energy Astrophysical Phenomena
KW - pulsars: individual: PSR J2032+4127
KW - radiation mechanisms: non-thermal
KW - stars: massive
KW - X-rays: binaries
AB - PSR J2032+4127 is a young and rapidly rotating pulsar on a highly eccentric orbit around the high-mass Be star MT91 213. X-ray monitoring of the binary system over an ∼4000 d period with Swift has revealed an increase of the X-ray luminosity which we attribute to the synchrotron emission of the shocked pulsar wind. We use Swift X-ray observations to infer a clumpy stellar wind with r-2 density profile and constrain the Lorentz factor of the pulsar wind to 105 < γw < 106. We investigate the effects of an axisymmetric stellar wind with polar gradient on the X-ray emission. Comparison of the X-ray light curve hundreds of days before and after the periastron can be used to explore the polar structure of the wind.
VL - 474
SN - 0035-8711
UR - https://ui.adsabs.harvard.edu/abs/2018MNRAS.474L..22P
JO - Monthly Notices of the Royal Astronomical Society
ER -