Results 21 to 30 of about 6,326 (188)
Pulsar statistics - IV. Pulsar velocities [PDF]
We have used Monte Carlo simulations of the Galactic pulsar population to reassess the kinematics of radio pulsars in light of the large number of recently published proper motions and the revised distance model. Our modelling of the observational selection effects that distort the observed sample is far more detailed and self-consistent than that of ...
Lorimer, D. R. +2 more
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Pulsar Electrodynamics — Pulsars and Puzzlers — [PDF]
Abstract A gedanken experiment presented here provides basic understanding of how the pulsar magnetosphere operates. We discuss current issues about the electric-field acceleration along magnetic field lines and subsequent pair creation, and also about the pulsar wind problem.
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Variable Magellanic HMXB Sources versus Variable ULX Sources: Nothing to Brag about the ULX Sources
We carry out a meta-analysis of ultraluminous X-ray (ULX) sources that show large variabilities (by factors of >10) between their highest and lowest emission states in the X-ray energy range of 0.3–10 keV.
Dimitris M. Christodoulou +5 more
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POLAR GAP IN THE PULSAR FORCE-FREE MAGNETOSPHERE STRUCTURE
The stationary axisymmetric force-free magnetosphere of a pulsar is considered by accounting for the polar gap and current circuit. Adjustment of the vacuum polar gap and the closing current sheet with the force-free magnetosphere of a monopolar ...
S. A. Petrova
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Spin Equilibrium of Rapidly Spinning Neutron Stars via Transient Accretion
The concept of spin equilibrium due to an interaction between the stellar magnetosphere and a thin, Keplerian accretion disk, and a well-known formula of the corresponding equilibrium spin frequency, provide a key understanding of spin evolution and the ...
Sudip Bhattacharyya
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Investigation of Accuracy of TOA and SNR of Radio Pulsar Signals for Vehicles Navigation
It is known that X-ray and gamma-ray pulsars can only be observed by spacecraft because signals from these pulsars are impossible to be detected on the Earth’s surface due to their strong absorption by the Earth’s atmosphere.
Hristo Kabakchiev +4 more
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The high-energy sources known as anomalous X-ray pulsars (AXPs) and soft gamma-ray repeaters (SGRs) are well explained as magnetars: isolated neutron stars powered by their own magnetic energy. After explaining why it is generally believed that the traditional energy sources at work in other neutron stars (accretion, rotation, residual heat) cannot ...
openaire +2 more sources
DECAMETER PULSAR/TRANSIENT SURVEY OF NORTHEN SKY. FIRST RESULTS
The decameter pulsar/transient survey is now being made using the UTR-2 radio telescope. The survey strategy and parameters, equipment characteristics, data processing algorithms as well as preliminary results are described. The very first result was the
Ia. Yu. Vasylieva +6 more
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Physicochemical fundamentals of phase formation in silicon layers implanted with oxygen and carbon [PDF]
The thermodynamic and kinetic regularities of processes occurring during heat treatment in silicon layers implanted with oxygen and carbon ions have been considered.
Andrey N. Aleshin, Kira L. Enisherlova
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