The Pulsar Gamma-Ray Emission from High-resolution Dissipative Magnetospheres
نویسندگان
چکیده
The pulsar light curves and energy spectra are explored in dissipative magnetospheres with the Aristotelian electrodynamics (AE), where particle acceleration is fully balanced radiation reaction. AE non-zero pair multiplicity computed by a pseudo-spectral method co-moving frame. region near current sheet outside LC accurately captured high-resolution simulation. test trajectory including influence of both consistent accelerating electric field Our results can generally reproduce double-peak GeV cut-off agreement Fermi observations for $\kappa\gtrsim1$.
منابع مشابه
X-ray and Gamma-ray Emission from Pulsar Magnetospheres
For polar-cap models based on electromagnetic cascades induced by curvature radiation of beam particles we calculate broad-band high-energy spectra of pulsed emission expected for classical (∼ 10 G) and millisecond pulsars (∼ 10 G). The spectra are a superposition of curvature and synchrotron radiation components and most of their detailed features depend significantly on the magnetic field str...
متن کاملGamma-ray emission from pulsar/massive-star binaries
I present a review of the main phenomenological properties at high energies related to massive gamma-ray binaries and I discuss some aspects of pulsar models for these objects.
متن کاملHigh-energy γ-ray emission from gamma-ray bursts
GRBs are nowadays a rather well understood phenomenon in the soft (KeV-MeV) γ-ray energy band, while only a few GRBs have been observed at high photon energies (Eγ ∼ 1 GeV). It is also widely recognized that GRBs accelerate protons to relativistic energies and that dense media are often present nearby the sources. Within this framework and by further adopting Totani’s suggestion that GRB events...
متن کاملThe Gamma Ray Pulsar Population
We apply a likelihood analysis to pulsar detections, pulsar upper limits, and diffuse background measurements from the OSSE and EGRET instruments on the Compton Gamma Ray Observatory to constrain the luminosity law for gamma-ray pulsars and some properties of the gamma-ray pulsar population. We find that the dependence of luminosity on spin period and dipole magnetic field is much steeper at OS...
متن کاملGamma-Ray Pulsar Visibility
PSR J0437-4715 is a millisecond pulsar (MSP) thought to be “pair formation starved” (having limited pair cascades due to magnetic photon absorption). Fortunately the general relativistic (GR) electrodynamical model under consideration applicable to this pulsar have few free parameters. We model PSR J0437-4715’s visibility [1], using a 3D model which incorporates the variation of the GR E-field ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: The Astrophysical Journal
سال: 2022
ISSN: ['2041-8213', '2041-8205']
DOI: https://doi.org/10.3847/1538-4357/ac3dea