Implication of the striped pulsar wind model for gamma-ray binaries

Abstract

(abridged) Gamma-ray binaries are massive stars with compact object companions that are observed to emit most of their energy in the gamma-ray range. One of these binaries is known to contain a radio pulsar, PSR B1259-63. Synchrotron and inverse Compton emission from particles accelerated beyond the light cylinder in striped pulsar winds has been proposed to explain the X-ray to high energy (HE, $>$ 100 MeV) gamma-ray emission from isolated pulsars. This pulsar model extends naturally to binary environments, where seed photons for inverse Compton scattering are provided by the companion star. Here, we investigate the possibility of gamma-ray emission from PSR B1259-63 in the framework of the striped pulsar wind model. The orbital geometry of PSR B1259-63 is well constrained by observations and the double radio pulse suggests an almost orthogonal rotator so that the solid angle covered by the striped region is close to $4\pi$. We calculate the orbital and rotational phase-resolved spectral variability and light-curves to expect.

Accepted by MNRAS

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Cited by in corpus (24)

• Gamma-ray binaries and related systems
• Theory of pulsar magnetosphere and wind
• Multi-wavelength Observations of the Binary System PSR B1259-63/LS~2883 around the 2014 Periastron Passage
• Multi-wavelength observations of the binary system PSR B1259-63/LS 2883 around the 2010-2011 periastron passage
• Unraveling the high-energy emission components of gamma-ray binaries
• The geometric distance and binary orbit of PSR B1259-63
• Observations and Modeling of the Companions of Short Period Binary Millisecond Pulsars: Evidence for High-Mass Neutron Stars
• Thermal X-ray Emission from the Shocked Stellar Wind of Pulsar Gamma-ray Binaries
• What caused the GeV flare of PSR B1259-63 ?
• Pulsed high energy gamma-rays from thermal populations in the current sheets of pulsar winds
• Radiative damping and emission signatures of strong superluminal waves in pulsar winds
• The missing GeV γ-ray binary: Searching for HESS J0632+057 with Fermi-LAT
• Probing the High-energy $\gamma$-ray Emission Mechanism in the Vela Pulsar via Phase-resolved Spectral and Energy-dependent Light Curve Modeling
• Superluminal waves in pulsar winds
• The effect of an offset polar cap dipolar magnetic field on the modeling of the Vela pulsar's $\gamma$-ray light curves
• Very high energy Fermi/LAT detection of HESS J0632+057
• A new approach to the GeV flare of PSR B1259-63/LS2883
• Properties of a hypothetical cold pulsar wind in LS~5039
• Effect of geodetic precession on the evolution of pulsar high-energy pulse profiles as derived with the striped-wind model
• First detection of PSR B1259-63/LS 2883 in the Millimeter and Submillimeter Wavelengths with ALMA
• ALMA Observations of PSR B1259-63/LS 2883 in an Inactive Period: Variable Circumstellar Disk?
• The stability of strong waves and its implications for pulsar wind shocks
• Pulsar-driven Jets in Supernovae, Gamma-Ray Bursts, and the Universe
• Pulsar emission in the very-high-energy regime