Results 141 to 150 of about 777,035 (267)

COBIPULSE: A Systematic Search for Compact Binary Millisecond Pulsars

open access: yesThe Astrophysical Journal
We report here the results obtained from a systematic optical photometric survey aimed at finding new compact binary millisecond pulsars (also known as “spiders”): the COmpact BInary PULsar SEarch. We acquired multiband optical images over 1 yr around 33
Marco Turchetta   +7 more
doaj   +1 more source

Neutron star mass estimates from gamma-ray eclipses in spider millisecond pulsar binaries. [PDF]

open access: yesNat Astron, 2023
Clark CJ   +28 more
europepmc   +1 more source

Revisiting the double-binary-pulsar probe of nondynamical Chern-Simons gravity

open access: yes, 2011
One of the popular modifications to the theory of general relativity is nondynamical Chern-Simons (CS) gravity, in which the metric is coupled to an externally prescribed scalar field.
Yacine Ali-Haïmoud
semanticscholar   +1 more source

No tension between assembly models of super massive black hole binaries and pulsar observations

open access: yesNature Communications, 2018
Pulsar timing arrays enable the search for the isotropic gravitational-wave (GW) background originating from super massive black hole binary populations, but impose a stringent upper limit on the GW characteristic amplitude.
Hannah Middleton   +4 more
doaj   +1 more source

Further experimental tests of relativistic gravity using the binary pulsar PSR 1913+16

open access: yes, 1989
Fourteen-year observations of the binary pulsar PSR 1913 + 16 provided data consistent with a straightforward model allowing for the motion of the earth, special and general relativistic effects within the solar system, dispersive propagation in the ...
Joseph H. Taylor, J. Weisberg
semanticscholar   +1 more source

Thirty-five Years of Timing of M53A with Arecibo and FAST

open access: yesThe Astrophysical Journal Letters
PSR B1310+18A is a 33 ms binary pulsar in a 256 day, low eccentricity orbit with a low-mass companion located in NGC 5024 (M53). In this Letter, we present the first phase-coherent timing solution for this pulsar (designated as M53A) derived from a 35 yr
Yujie Lian   +8 more
doaj   +1 more source

Verification of f(R)-gravity in binary pulsars

open access: yesEPJ Web of Conferences, 2016
We develop the parameterized post-Keplerian approach for class of analytic f (R)-gravity models. Using the double binary pulsar system PSR J0737-3039 data we obtain restrictions on the parameters of this class of f (R)-models and show that f (R)-gravity ...
Dyadina Polina   +3 more
doaj   +1 more source

Strongly interacting matter exhibits deconfined behavior in massive neutron stars. [PDF]

open access: yesNat Commun, 2023
Annala E   +6 more
europepmc   +1 more source

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