X-ray mapping of the stellar wind in the binary PSR J2032+4127/MT91 213

Abstract

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 a $\sim$4000 day 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 $10^5<{\gamma }_w<10^6$. 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.

arXiv comment5 pages, submitted to MNRAS Letters

References in corpus (24)

• An online repository of Swift/XRT light curves of GRBs
• Detection of 16 Gamma-Ray Pulsars Through Blind Frequency Searches Using the Fermi LAT
• A natural explanation for periodic X-ray outbursts in Be/X-ray binaries
• Three-Dimensional Magnetohydrodynamic Simulations of the Crab Nebula
• Radio detection of LAT PSRs J1741-2054 and J2032+4127: no longer just gamma-ray pulsars
• Mass loss in main-sequence B stars
• Relativistic MHD simulations of pulsar bow-shock nebulae
• The quiescent X-ray emission of three transient X-ray pulsars
• Clumped stellar winds in supergiant high-mass X-ray binaries: X-ray variability and photoionization
• On the nature of the fast moving star S2 in the Galactic Center
• Multiwavelength monitoring and X-ray brightening of Be X-ray binary PSR J2032+4127/MT91 213 on its approach to periastron
• Modeling Ultraviolet Wind Line Variability in Massive Hot Stars
• Super-Eddington accretion onto a magnetized neutron star
• Hydrodynamic Interaction between the Be Star and the Pulsar in the TeV Binary PSR B1259-63/LS 2883
• Clumpy wind accretion in supergiant neutron star high mass X-ray binaries
• High-Energy emissions from the Pulsar/Be binary system PSR J2032+4127/MT91 213
• Predicting Gaia's Parallax Distance to the Cygnus OB2 Association with Eclipsing Binaries
• A glitch and an anti-glitch in the anomalous X-ray pulsar 1E 1841-045
• Swift, XMM-Newton, and NuSTAR observations of PSR J2032+4127/MT91 213
• Possible changes of state and relevant timescales for a neutron star in LS I +61°303
• Simulations of an inhomogeneous stellar wind interacting with a pulsar wind in a binary system
• Non-thermal radiation from a pulsar wind interacting with an inhomogeneous stellar wind
• Models of Forbidden Line Emission Profiles from Axisymmetric Stellar Winds
• Radio Emission from Sgr A*: Pulsar Transits Through the Accretion Disc

Cited by in corpus (13)

• Periastron Observations of TeV Gamma-Ray Emission from a Binary System with a 50-year Period
• Modelling the multi-wavelength emissions from PSR B1259-63/LS 2883: the effects of the stellar disc on shock radiations
• Neutron Stars and Black Holes in the Small Magellanic Cloud: The SMC NuSTAR Legacy Survey
• Multi-wavelength observations of PSRJ 2032+4127 during the 2017 periastron passage
• The X-ray modulation of PSR J2032+4127/MT91 213 during the Periastron Passage in 2017
• X-ray and Radio Variabilities of PSR J2032+4127 near Periastron
• Variations on a theme -- the puzzling behaviour of Schulte 12
• Modelling the correlated keV/TeV light curves of Be/gamma-ray binaries
• The semicentennial binary system PSR J2032+4127 at periastron: X-ray photometry, optical spectroscopy and SPH modelling
• Radio emission from colliding outflows in high-mass X-ray binaries with strongly magnetized neutron stars
• A precessing stellar disk model for superorbital modulations of the gamma-ray binary LS I+61${}^{\circ }$ 303
• X-Ray spectral evolution of PSR~J2032+4127 during the 2017 periastron passage
• Optical flares due to X-ray irradiation during BeXRB major outbursts