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Article
Discovery of two long-period pulsars associated the globular cluster M15
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Article
Millisecond Pulsars, their Evolution and Applications
Millisecond pulsars (MSPs) are short-period pulsars that are distinguished from “normal” pulsars, not only by their short period, but also by their very small spin-down rates and high probability of being in a...
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Chapter and Conference Paper
Pulsars: Celestial Clocks
Pulsars are rapidly rotating neutron stars, with most of the known examples located within our Milky Way Galaxy. The class of “millisecond pulsars” (MSPs) have remarkably stable pulse periods, with a stability...
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Article
Rotation measure variations for 20 millisecond pulsars
We report on variations in the mean position angle of the 20 millisecond pulsars being observed as part of the Parkes Pulsar Timing Array (PPTA) project. It is found that the observed variations are dominated ...
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Chapter
Observations of the Double Pulsar PSR J0737–3039A/B
The double pulsar J0737–3039A/B consists of a recycled 22-millisecond pulsar and a young 2.7-second pulsar in a highly relativistic 2.4-hour orbit. This system provides an unprecedented laboratory for testing the...
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Article
Transient radio bursts from rotating neutron stars
A previously unknown population of superdense neutron stars has been identified. Termed RRATs, for rotating radio transients, their radio emissions vary on very short timescales, with bursts of 2 to 30 millise...
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Article
Pulsar Radio and Gamma-Ray Emission
A total of eight gamma-ray sources are identified with pulsars and these include some of the strongest gamma-ray sources in the sky. About 20 of the unidentified gamma-ray sources are very likely to be associa...
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Chapter and Conference Paper
SN 1987A at Radio Wavelengths
SN1987A has an intrinsic radio luminosity some four orders of magnitude less than SN1993J at maximum, largely a reflection of the tenuous wind from the progenitor of SN1987A before explosion. Both remnants hav...
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Chapter
Pulsar Radio and Gamma-Ray Emission
A total of eight gamma-ray sources are identified with pulsars and these include some of the strongest gamma-ray sources in the sky. About 20 of the unidentified gamma-ray sources are very likely to be associa...
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Article
An increased estimate of the merger rate of double neutron stars from observations of a highly relativistic system
The merger1 of close binary systems containing two neutron stars should produce a burst of gravitational waves, as predicted by the theory of general relativity2. A reliable estimate of the double-neutron-star me...
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Article
Scintillation Observations of Strong Northern Pulsars
Scintillation of pulsar radio emission provides information about the interstellar medium along the path to the pulsar and the velocities of pulsars. It also affects the precision of pulse timing observations....
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Article
The parkes multibeam pulsar survey and interstellar scattering
The Parkes multibeam pulsar survey is a major survey for pulsars lying within a 10°-wide strip along the southern Galactic plane, using the multibeam receiver on the Parkes 64-m radiotelescope. It is an internati...
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Article
A test of general relativity from the three-dimensional orbital geometry of a binary pulsar
Binary pulsars provide an excellent system for testing general relativity because of their intrinsic rotational stability and the precision with which radio observations can be used to determine their orbital ...
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Chapter
Scintillation Observations Of Strong Northern Pulsars
Scintillation of pulsar radio emission provides information about the interstellar mediumalong the path to the pulsar and the velocities of pulsars. It also affects the precision of pulse timingobservations. U...
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Chapter
The Parkes Multibeam Pulsar Survey and Interstellar Scattering
The Parkes multibeam pulsar survey is a major survey for pulsars lying within a 10° -widestrip along the southern Galactic plane, using the multibeam receiver on the Parkes 64-m radiotelescope.It is an interna...
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Chapter
Pulsars at Parkes
The 64-m Parkes radio telescope of the Australia Telescope National Facility has a long history of observing and finding pulsars. These observations include precision timing, polarization studies and using pul...
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Chapter
The Observation of Pulsars at Urumqi Astronomical Observatory
The pulsar’s observation is being developed using the 25m radio telescope at Urumqi Astronomical Observatory (UAO). A pulsar timing system has been set up. It uses a dual polarization receiver operating at 18c...
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Article
A radio pulsar with an 8.5-second period that challenges emission models
Radio pulsars are rotating neutron stars that emit beams of radiowaves from regions above their magnetic poles. Popular theories1,2,3,4 of the emission mechanism require continuous electron–positron pair producti...
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Article
Evidence from a processing pulsar orbit for a neutron-star birth kick
BIRTH 'kicks' to neutron stars, resulting from asymmetric supernova explosions, have been proposed to explain the high velocities of pulsars1,2, the existence of companionless, high-velocity massive stars3,4, and...
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Article
The shape of pulsar beams
Observations of mean or average pulse profiles and their polarization give us much information on the shape of pulsar beams. The observed polarization variations, profile symmetry and frequency dependence of p...