Results 41 to 50 of about 777,035 (267)
Radio Timing and Optical Photometry of the Black Widow System PSR J1953+1846A in the Globular Cluster M71 [PDF]
, 2015 We report on the determination of the astrometric, spin and orbital parameters for PSR J1953+1846A, a "black widow" binary millisecond pulsar in the globular cluster M71.
Cadelano, M. +9 more
core +10 more sources
Detection of cyclotron resonance scattering feature in high-mass X-ray binary pulsar SMC X-2 [PDF]
, 2016 We report broad-band spectral properties of the high-mass X-ray binary pulsar SMC X-2 by using three simultaneous Nuclear Spectroscopy Telescope Array and Swift/XRT observations during its 2015 outburst.
G. K. Jaisawal, S. Naik
semanticscholar +1 more source
Binary and Other Recycled Pulsars [PDF]
Symposium - International Astronomical Union, 1992 Binary pulsars and others with weak fields and rapid rotation now number several dozen and appear to have been spun up by close binary mass transfer. Some are lineal descendents of X-ray binaries; others may result from accretion-induced collapse of binary white dwarfs or from captures, exchanges, and collisions in clusters. Seven accurate neutron star
openaire +3 more sources
Exploring the Extra Component in the Gamma-ray Emission of the New Redback Candidate 3FGL J2039.6-5618 [PDF]
Journal of Astronomy and Space Sciences, 2016 A redback system is a binary system composed of a pulsar and a main sequence star. The inverse Compton (IC) scattering between the stellar soft photons and the relativistic pulsar wind will generate orbital-modulating GeV photons.
Cho-Wing Ng +2 more
doaj +1 more source
Suzaku view of the Be/X-ray binary pulsar GX 304-1 during Type I X-ray outbursts [PDF]
, 2016 We report the timing and spectral properties of Be/X-ray binary pulsar GX 304-1 by using two Suzaku observations during its 2010 August and 2012 January X-ray outbursts.
G. K. Jaisawal +2 more
semanticscholar +1 more source
Searching for pulsars in close circular binary systems [PDF]
Astronomy & Astrophysics, 2002 We present a detailed mathematical analysis of the Fourier response of binary pulsar signals whose frequencies are modulated by circular orbital motion. The fluctuation power spectrum of such signals is found to be _orb-periodic over a compact frequency range, where _orb denotes orbital frequency.
S. Jouteux +4 more
openalex +6 more sources
Tests of gravitational symmetries with pulsar binary J1713+0747 [PDF]
Monthly notices of the Royal Astronomical Society, 2018 Symmetries play a fundamental role in modern theories of gravity. The strong equivalence principle (SEP) constitutes a collection of gravitational symmetries which are all implemented by general relativity.
Weiwei Zhu +74 more
semanticscholar +1 more source
Vainshtein mechanism in binary pulsars
Physical Review D, 2013 minor revisions to match published version in ...
Andrew J. Tolley +2 more
openaire +4 more sources
Application of the Ghosh & Lamb relation to the spin-up/down behavior in the X-ray binary pulsar 4U 1626−67 [PDF]
, 2016 We analyzed continuous MAXI/GSC data of the X-ray binary pulsar 4U 1626-67 from 2009 October to 2013 September, and determined the pulse period and the pulse-period derivative for every 60-d interval by the epoch folding method.
T. Takagi +4 more
semanticscholar +1 more source
Symposium - International Astronomical Union, 1981 There are now three radio frequency pulsars known to be in binary systems: PSRs 1913+16, 0820+02, and 0655+64. The first of these, discovered in 1974, moves in a tight, highly eccentric orbit with a period of approximately 7h 45m. Its companion has not yet been identified with certainty, but must be a compact object of mass comparable to that of the ...
openaire +1 more source