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