Results 31 to 40 of about 654,536 (207)

Are many pulsars processed in binary systems? [PDF]

open access: yes, 1995
A detailed statistical analysis of pulsar current is presented. The conclusions reached are the following: (1) The birthrate of pulsars is about one in 75 ± 15 years. (2) There is evidence for injection of pulsars into the population of solitary pulsars.
Deshpande, A. A.   +3 more
core   +1 more source

Gravitoastronomy with neutron stars [PDF]

open access: yes, 2004
Recent advances in gravitational wave detectors mean that we can start to make astrophysically important statements about the physics of neutron stars based on observed upper limits to their gravitational luminosity.
Woan, G., Graham Woan
core   +1 more source

On the Orbital Properties of Millisecond Pulsar Binaries [PDF]

open access: yesThe Astrophysical Journal, 2018
Abstract We report a detailed analysis of the orbital properties of a binary millisecond pulsar (MSP) with a white dwarf (WD) companion. Positive correlations between the orbital period P b and eccentricity ϵ are found in two classes of MSP binaries with a He WD and with a CO/ONeMg WD, though their trends are different.
C. Y. Hui   +4 more
openaire   +3 more sources

Origin of the Binary Pulsar J0737-3039B

open access: yesPhysical Review Letters, 2005
Evolutionary scenarios suggest that the progenitor of the new binary pulsar J0737-3039B \cite{ref1,ref2} was a He-star with $M > 2.1-2.3~\Ms$ \cite{ref3,ref4}. We show that this case implies that the binary must have a large ($>120$ km/s) center of mass velocity.
Piran, Tsvi, Shaviv, Nir J.
openaire   +4 more sources

Exploiting orbital constraints from optical data to detect binary gamma-ray pulsars [PDF]

open access: yes, 2020
It is difficult to discover pulsars via their gamma-ray emission becausecurrent instruments typically detect fewer than one photon per millionrotations.
Nieder, L.   +6 more
core   +1 more source

SOME EVOLUTIONARY ASPECTS OF THE BINARY STELLAR SYSTEMS CONTAINING NEUTRON STAR

open access: yesOdessa Astronomical Publications, 2012
The obvious lack of the binary stellar systems that contain neutron stars (NS) is observed at present. Partly it is caused by the fact that it is very difficult to detect neutron star in a binary system if this relativistic component does not manifest ...
Oleg O. Ulyanov   +3 more
doaj   +1 more source

Improving Distances to Binary Millisecond Pulsars with Gaia

open access: yesThe Astrophysical Journal, 2023
Pulsar distances are notoriously difficult to measure, and play an important role in many fundamental physics experiments, such as pulsar timing arrays.
Abigail Moran   +4 more
doaj   +1 more source

Origin and Binary Evolution of Millisecond Pulsars

open access: yes, 2021
We summarize the channels formation of neutron stars (NS) in single or binary evolution and the classic recycling scenario by which mass accretion by a donor companion accelerates old NS to millisecond pulsars (MSP). We consider the possible explanations and requirements for the high frequency of the MSP population in Globular Clusters.
D'Antona, Francesca, Tailo, Marco
openaire   +2 more sources

Spin frequency distributions of binary millisecond pulsars [PDF]

open access: yes, 2014
Rotation-powered millisecond radio pulsars have been spun up to their present spin period by a 108−109 yr long X-ray-bright phase of accretion of matter and angular momentum in a low-to-intermediate mass binary system.
Tauris, T.M.   +9 more
core   +1 more source

A massive millisecond pulsar in an eccentric binary [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2016
The recent discovery of a population of eccentric (e ~ 0.1) millisecond pulsar (MSP) binaries with low-mass white dwarf companions in the Galactic field represents a challenge to evolutionary models that explain MSP formation as recycling: all such models predict that the orbits become highly circularised during a long period of accretion.
E. D. Barr   +7 more
openaire   +4 more sources

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