Results 21 to 30 of about 777,035 (267)

The Green Bank North Celestial Cap Survey. VIII. 21 New Pulsar Timing Solutions

open access: yesThe Astrophysical Journal, 2023
We present timing solutions for 21 pulsars discovered in 350 MHz surveys using the Green Bank Telescope (GBT). All were discovered in the Green Bank North Celestial Cap pulsar survey, with the exception of PSR J0957−0619, which was found in the GBT 350 ...
W. Fiore   +28 more
doaj   +1 more source

Testing extra dimensions with the binary pulsar [PDF]

open access: yesClassical and Quantum Gravity, 2004
In this letter we calculate the emission of gravity waves by the binary pulsar in the framework of five dimensional braneworlds. We consider only spacetimes with one compact extra-dimension. We show that the presence of additional degrees of freedom, especially the 'gravi-scalar' leads to a modification of Einstein's quadrupole formula.
Durrer, Ruth, Kocian, Philippe
openaire   +5 more sources

PSR J1953+1844 Probably Being the Descendant of an Ultracompact X-Ray Binary

open access: yesThe Astrophysical Journal Letters, 2023
PSR J1953+1844 (i.e., M71E) is a millisecond pulsar in a 53 minute binary orbit discovered by the Five-hundred-meter Aperture Spherical radio Telescope. The mass function from pulsar timing is 2.3 × 10 ^−7 M _⊙ .
Z. L. Yang   +3 more
doaj   +1 more source

Green Bank Telescope Discovery of the Redback Binary Millisecond Pulsar PSR J0212+5321

open access: yesThe Astrophysical Journal, 2023
We report the discovery of a 2.11 ms binary millisecond pulsar during a targeted search of the redback optical candidate coincident with the γ -ray source 3FGL J0212.5+5320 using the Robert C.
Karen I. Perez   +3 more
doaj   +1 more source

Binary Pulsar Distances and Velocities from Gaia Data Release 2 [PDF]

open access: yesAstrophysical Journal, 2018
The second data release from the Gaia mission (Gaia DR2) includes, among its billion entries, astrometric parameters for binary companions to a number of known pulsars, including white dwarf companions to millisecond pulsars (MSPs) and the non-degenerate
R. Jennings   +4 more
semanticscholar   +1 more source

Study of recent outburst in the Be/X-ray binary RX J0209.6−7427 with AstroSat: a new ultraluminous X-ray pulsar in the Magellanic Bridge? [PDF]

open access: yesMonthly notices of the Royal Astronomical Society, 2020
We present the timing and spectral studies of RX J0209.6–7427 during its rare 2019 outburst using observations with the Soft X-ray Telescope (SXT) and Large Area X-ray Proportional Counter (LAXPC) instruments on the AstroSat satellite.
A. Chandra   +3 more
semanticscholar   +1 more source

Binary pulsar constraints on massless scalar–tensor theories using Bayesian statistics [PDF]

open access: yesClassical and quantum gravity, 2019
Binary pulsars provide some of the tightest current constraints on modified theories of gravity and these constraints will only get tighter as radio astronomers continue timing these systems.
David Anderson, P. Freire, N. Yunes
semanticscholar   +1 more source

Unusually Bright Single Pulses from the Binary Pulsar B1744–24A: A Case of Strong Lensing? [PDF]

open access: yesAstrophysical Journal, 2018
We present a study of unusually bright single pulses (BSPs) from a millisecond pulsar in an ablating binary system, B1744−24A, based on several multiorbit observations with the Green Bank Telescope.
A. Bilous, S. Ransom, P. Demorest
semanticscholar   +1 more source

On the detectability of eccentric binary pulsars [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2013
By generalizing earlier work of Johnston & Kulkarni, we present a detailed description of the reduction in the signal-to-noise ratio for observations of binary pulsars. We present analytical expressions, and provide software, to calculate the sensitivity reduction for orbits of arbitrary eccentricity.
Manjari Bagchi   +4 more
openaire   +3 more sources

RELATIVISTIC MEASUREMENTS FROM TIMING THE BINARY PULSAR PSR B1913+16 [PDF]

open access: yes, 2016
We present relativistic analyses of 9257 measurements of times-of-arrival from the first binary pulsar, PSR B1913+16, acquired over the last 35 years.
J. Weisberg, Yuping Huang
semanticscholar   +1 more source

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