Results 21 to 30 of about 6,438 (185)

Pair Production Multiplicities in Rotation‐powered Pulsars

open access: yesThe Astrophysical Journal, 2001
We discuss the creation of electron-positron cascades in the context of pulsar polar cap acceleration models and derive several useful analytic and semi-analytic results for the spatial extent and energy response of the cascade. Instead of Monte Carlo simulations, we use an integro- differential equation which describes the development of the cascade ...
Hibschman, J. A., Arons, J.
openaire   +2 more sources

Gamma‐Ray Emission from Rotation‐powered Pulsars [PDF]

open access: yesThe Astrophysical Journal, 2002
Using a simplified model of cascade pair creation over pulsar polar caps presented in two previous papers, we investigate the expected gamma-ray output from pulsars' low altitude particle acceleration and pair creation regions. We divide pulsars into several categories, based on which mechanism truncates the particle acceleration off the polar cap, and
openaire   +2 more sources

ASCA observations of Galactic rotation-powered pulsars [PDF]

open access: yesInternational Astronomical Union Colloquium, 2000
Abstract We have examined several archival ASCA observations of Galactic radio pulsars, including PSRs B1046–58 and B1610–50. X-ray emission is detected from PSR B1046–58 with a significance of ∼5σ. We find no evidence for pulsations. We argue that the emission is from a spatially unresolved synchrotron nebula powered by the pulsar.
M. J. Pivovaroff   +2 more
openaire   +1 more source

Pulsar Physics and GLAST [PDF]

open access: yes, 2007
Rotation-powered pulsars are excellent laboratories for study of particle acceleration as well as fundamental physics of strong gravity, strong magnetic fields, high densities and relativity.
Harding, Alice K.
core   +2 more sources

Broadband X-Ray Spectroscopy of the Pulsar Wind Nebula in HESS J1640-465

open access: yesThe Astrophysical Journal, 2023
We present updated measurements of the X-ray properties of the pulsar wind nebula associated with the TeV γ -ray source HESS J1640-465 derived from Chandra and Nuclear Spectroscopic Telescope Array data.
Moaz Abdelmaguid   +3 more
doaj   +1 more source

BeppoSAX observations of rotation-powered pulsars [PDF]

open access: yesAdvances in Space Research, 2004
During its life, BeppoSAX observed several isolated pulsars, giving important contributions to the knowledge of the phenomenology and properties of the X-ray emission from this class of sources. In this paper I review the spectral and timing results obtained from BeppoSAX observations.
openaire   +2 more sources

Young rotation-powered pulsars as ultraluminous X-ray sources [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2013
14 pages, 11 figures; MNRAS, in ...
Aleksei S. Medvedev, Juri Poutanen
openaire   +3 more sources

Phase Offset of Rotation-Powered X-ray Pulsars [PDF]

open access: yesSymposium - International Astronomical Union, 2003
Combing the data of all the 10 rotation-powered pulsars that have measurements of relative phase of radio and X-ray pulses, we report here the behavior of radio/X-ray phase offset. We find that the radio/X-ray offset of normal pulsars does not show the trend of increase with increasing pulsar period as the radio/gamma-ray offset exhibits. The offset of
H. G. Wang, G. J. Qiao, R. X. Xu
openaire   +1 more source

Bursts from High-magnetic-field Pulsars Swift J1818.0-1607 and PSR J1846.4-0258

open access: yesThe Astrophysical Journal, 2022
The detection of magnetar-like bursts from highly magnetic ( B > 10 ^13 G) rotation-powered pulsars (RPPs) opened the magnetar population to yet another group of neutron stars.
Mete Uzuner   +10 more
doaj   +1 more source

Autonomous Spacecraft Navigation With Pulsars [PDF]

open access: yes, 2013
An external reference system suitable for deep space navigation can be defined by fast spinning and strongly magnetized neutron stars, called pulsars.
Becker, Werner   +2 more
core   +1 more source

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