Results 21 to 30 of about 847,988 (312)
RELATIVISTIC EFFECT OF GRAVITATIONAL DEFLECTION OF LIGHT IN BINARY PULSARS [PDF]
, 1995 An improved formula for the timing of binary pulsars that accounts for the relativistic deflection of light in the gravitational field of the pulsar's companion is presented, and the measurability of this effect together with its variance estimates are discussed. The deflection of the pulsar's beam trajectory in the gravitational field of its companion
Oleg DoroshenkoSergei Kopeikin
arxiv +3 more sources
Closing a spontaneous-scalarization window with binary pulsars [PDF]
Classical and quantum gravity, 2022 Benefitting from the unequaled precision of the pulsar timing technique, binary pulsars are important testbeds of gravity theories, providing some of the tightest bounds on alternative theories of gravity.
Junjie Zhao +4 more
semanticscholar +1 more source
Constraining scalarization in scalar-Gauss-Bonnet gravity through binary pulsars [PDF]
Physical Review D, 2021 In the present paper we derive strong constrains on scalarization in scalar-Gauss-Bonnet (sGB) gravity using observations of pulsars in close binary systems.
V. Danchev, D. Doneva, S. Yazadjiev
semanticscholar +1 more source
Binary Pulsars: Observations and Implications [PDF]
Symposium - International Astronomical Union, 1987 The Galaxy contains a large number of neutron stars in gravitation-ally bound binary systems. Among the most fruitful of these to study have been the binary radio pulsars, of which seven are now known. Unlike the “accretion-powered” neutron stars located in mass-exchanging X-ray binary systems, the “rotation-powered” binary radio pulsars are found in ...
J. H. Taylor
openalex +2 more sources
Discovery of three binary millisecond pulsars
The 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
New graviton mass bound from binary pulsars [PDF]
, 2020 In Einstein's general relativity, gravity is mediated by a massless metric field. The extension of general relativity to consistently include a mass for the graviton has profound implications for gravitation and cosmology.
Lijing Shao, N. Wex, Shuang-Yong Zhou
semanticscholar +1 more source
Probing massive scalar and vector fields with binary pulsars [PDF]
, 2020 Precision tests of general relativity can be conducted by observing binary pulsars. Theories with massive fields exist to explain a variety of phenomena from dark energy to the strong CP problem.
Brian C Seymour, Kent Yagi
semanticscholar +1 more source
Australian Occupational Therapy Journal, Volume 69, Issue 6, Page 714-722, December 2022., 2022 Abstract Introduction Learning from individuals with lived experience is considered an important element of developing recovery‐oriented practice capabilities in mental health contexts. Additionally, service user involvement in the education of occupational therapy students is a requirement in accreditation standards.
Justin Newton Scanlan +3 more
wiley +1 more source
Binary and Millisecond Pulsars [PDF]
Annual 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
Polarization of Intrabinary Shock Emission in Spider Pulsars
The Astrophysical Journal, 2023 In so-called spider pulsars, the X-ray band is dominated by intrabinary shock (IBS) synchrotron emission. While the double-peaked X-ray light curves from these shocks have been well characterized in several spider systems (both black widows and redbacks),
Andrew G. Sullivan, Roger W. Romani
doaj +1 more source