Results 11 to 20 of about 777,035 (267)

A Massive Pulsar in a Compact Relativistic Binary [PDF]

open access: yesScience, 2013
Introduction Neutron stars with masses above 1.8 solar masses (M☉), possess extreme gravitational fields, which may give rise to phenomena outside general relativity.
J. Antoniadis   +21 more
semanticscholar   +7 more sources

Algorithmic Pulsar Timer for Binaries

open access: yesThe Astrophysical Journal
Pulsar timing is a powerful tool that, by accounting for every rotation of a pulsar, precisely measures the spin frequency, spin frequency derivatives, astrometric position, binary parameters when applicable, properties of the interstellar medium, and ...
Jackson Taylor   +2 more
doaj   +4 more sources

Relativistic Gravity and Binary Radio Pulsars [PDF]

open access: yesEighth Canadian conference on general relativity and relativistic astrophysics, 1999
Following a summary of the basic principles of pulsar timing, we present a review of recent results from timing observations of relativistic binary pulsars.
Kaspi, V. M.
core   +7 more sources

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 ...
E. Barr   +7 more
semanticscholar   +5 more sources

Binary pulsars as dark-matter probes [PDF]

open access: yesPhysical Review D, 2015
During the motion of a binary pulsar around the Galactic center, the pulsar and its companion experience a wind of dark-matter particles that can affect the orbital motion through dynamical friction.
Pani, Paolo
core   +4 more sources

Discovery of three binary millisecond pulsars

open access: bronzeThe Astrophysical Journal, 1994
We report the discovery of three binary millisecond pulsars in circular orbits with low-mass companions from a continuing survey of the southern sky with the Parkes radio telescope. The three pulsars, PSR J0034-0534, PSR J1045-4509, and PSR J2145-0750 have pulse periods of 1.87, 7.47, and 16.05 ms and orbital periods of 1.6, 4.1, and 6.8 days ...
M. Bailes   +9 more
openalex   +5 more sources

A Measurement of the Galactic Plane Mass Density from Binary Pulsar Accelerations

open access: yes, 2021
We use compiled high-precision pulsar timing measurements to directly measure the Galactic acceleration of binary pulsars relative to the solar system barycenter. Given the vertical accelerations, we use the Poisson equation to derive the Oort limit, i.e.
S. Chakrabarti   +4 more
semanticscholar   +1 more source

A Light Redback Companion of PSR J1622–0315 and Irradiation Power in Spider Systems

open access: yesThe Astrophysical Journal, 2023
We report optical observations of the millisecond pulsar binary system PSR J1622–0315 with the Lulin 1 m telescope in Taiwan and the Lijiang 2.4 m telescope in China between 2019 and 2021.
Y. X. Jane Yap   +2 more
doaj   +1 more source

Binary and Millisecond Pulsars [PDF]

open access: yesAnnual Review of Astronomy and Astrophysics, 1994
Most of the ~600 known pulsars are single and located in the disk of our Galaxy. There is circumstantial evidence that the pulsars in this majority are created in supernova (SN) explosions, by the collapse of the cores of massive stars (initial mass M_i ≳ M_(cr) ≃ 8 M_⊙). One is created roughly every 100 y in the Galaxy.
Phinney, E. S., Kulkarni, S. R.
openaire   +3 more sources

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

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