Trends in Pulsar Research

Front Cover
Nova Publishers, 2007 - Science - 211 pages
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Pulsars are stars, a significant part of whose observed energy output is not continuous but is emitted as distinct flashes or pulses of electromagnetic radiation. Many pulsars also emit some radiation weakly and constantly, forming a background for the more intensive pulses. Three distinct classes of pulsars are presently known to astronomers, according to the source of energy that powers the radiation: Rotation-powered pulsars, where the loss of rotational energy of the star powers the radiation X-ray pulsars, where the gravitational potential energy of accreted matter is the energy source, and Magnetars, where the decay of an extremely strong magnetic field powers the radiation. Although all three classes of objects are neutron stars, their observable behaviour and the underlying physics are quite different. There are, however, connections. For example, X-ray pulsars are probably old rotation-powered pulsars that have already lost most of their energy, and have only become visible again after their binary companions expanded and began transferring matter on to the neutron star. The process of accretion can in turn transfer enough angular momentum to the neutron star to "recycle" it as a rotation-powered millisecond pulsar.
 

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Contents

Pulsar Distances and the Electron Distribution in the Galaxy
1
The Origin of the Magnetic Field of Pulsars and the Gravitomagnetic Theory
25
AccretionDriven Millisecond XRay Pulsars
53
A Link between the Typical Radio Pulsars and Magnetars Magnetic Field Evolution through Pulsar Glitches
79
Radiation of the Gravitational and Electromagnetic Binary Pulsars
91
Neutrinospheres Resonant Neutrino Oscillations and Pulsar Kicks
119
Changes of the Orbital Periods of the Binary Pulsars
145
QuantumMagnetic Collapse of a Neutron Gas No Magnetar Formation
163
Natal Pulsar Kicks from Back Reaction of Gravitational Waves
189
Index
205
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