Results 21 to 30 of about 1,325 (160)

Tests of General Relativity from Timing the Double Pulsar [PDF]

Science, 2006
The double pulsar system PSR J0737-3039A/B is unique in that both neutron stars are detectable as radio pulsars. They are also known to have much higher mean orbital velocities and accelerations than those of other binary pulsars. The system is therefore a good candidate for testing Einstein's theory of general relativity and alternative ...
Kramer M, Stairs IH, Manchester RN, McLaughlin MA, Lyne AG, Ferdman RD, Burgay M, Lorimer DR, Possenti A, D'AMICO, NICOLO', Sarkissian JM, Hobbs GB, Reynolds JE, Freire PCC, Camilo F.   +14 more
openaire   +4 more sources

Planets around pulsars: formation and evolution [PDF]

, 2007
The existence of planetary systems around pulsars, in particular PSR 1257+12 and PSR 1620-26, is not completely comprehensible within the standard picture that considers pulsars as a consequence of supernova explosions.
FACCHINI A, DE PAOLIS, Francesco, NUCITA, Achille   +2 more
core   +1 more source

A Bayesian method for pulsar template generation [PDF]

Monthly Notices of the Royal Astronomical Society, 2015
Extracting Times of Arrival from pulsar radio signals depends on the knowledge of the pulsars pulse profile and how this template is generated. We examine pulsar template generation with Bayesian methods. We will contrast the classical generation mechanism of averaging intensity profiles with a new approach based on Bayesian inference. We introduce the
Imgrund, M., Champion, D., Kramer, M., Lesch, H.   +3 more
openaire   +3 more sources

Gravity Tests with Radio Pulsars [PDF]

, 2020
The discovery of the first binary pulsar in 1974 has opened up a completely new field of experimental gravity. In numerous important ways, pulsars have taken precision gravity tests quantitatively and qualitatively beyond the weak-field slow-motion ...
Michael Kramer, Norbert Wex, Wex, N., Kramer, M.   +3 more
core   +1 more source

A search for submillisecond pulsars [PDF]

, 2001
We have conducted a search of 19 southern Galactic globular clusters for submillisecond pulsars at 660 MHz with the Parkes 64 m radio telescope. To minimize dispersion smearing we used the CPSR baseband recorder, which samples the 20 MHz observing band ...
Matthew Bailes (18925756), Willem van Straten (18943699), R. T. Edwards (7631291)   +2 more
core   +1 more source

Are radio pulsars strange stars ? [PDF]

, 2001
A remarkably precise observational relation for pulse core component widths of radio pulsars is used to derive stringent limits on pulsar radii, strongly indicating that pulsars are strange stars rather than neutron stars.
R. C. Kapoor, Kapoor, R.C., Shukre, C.S., C. S. Shukre   +3 more
core   +1 more source

Probing the composition of sub-millisecond rotating compact stars by r-modes instability [PDF]

, 2012
We investigate the implications of the r-modes instability on the composition of a compact star rotating at a sub-millisecond period. In particular, the only viable astrophysical scenario for such an object, wich might present inside the Low Mass X-ray ...
Giuseppe Pagliara, Drago, Alessandro, Alessandro Drago, Pagliara, Giuseppe   +3 more
core   +1 more source

Testing Gravity with Pulsars in the SKA Era [PDF]

, 2015
The Square Kilometre Array (SKA) will use pulsars to enable precise measurements of strong gravity effects in pulsar systems, which yield tests of gravitational theories that cannot be carried out anywhere else.
Michael Kramer, Ransom, S., Possenti, A, Janssen, G, Freire, P, Deller, A, Stappers, B., Laemmerzahl, C, Paulo Freire, Antoniadis, J., Claus Laemmerzahl, Scott Ransom, Deller, A., Willem van Straten, Ransom, S, Hessels, J, Janssen, G., Kunz, J., Hessels, J., Lijing Shao, Gemma Janssen, Kramer, M., Kunz, J, Stairs, I., Stappers, B; id_orcid, POSSENTI, ANDREA, Possenti, A., van Straten, W, Ben Stappers, Jutta Kunz, Freire, P., Kramer, M, Perlick, V, Perlick, V., van Straten, W., Volker Perlick, Shao, L, Ingrid Stairs, Antoniadis, J, John Antoniadis, Stairs, I, Laemmerzahl, C., Shao, L., Andrea Possenti, Adam Deller, Jason Hessels   +45 more
core   +5 more sources

30 glitches in slow pulsars [PDF]

, 2006
We have analyzed 5.5 years of timing observations of 7 "slowly" rotating radio pulsars, made with the Westerbork Synthesis Radio Telescope. We present improved timing solutions and 30, mostly small, new glitches.
Stappers, B. W.; id_orcid, Stappers, B.W., B. W. Stappers, Janssen, G. H., G. H. Janssen, Janssen, G.H.   +5 more
core   +1 more source

Generation of pulsar radio emission [PDF]

International Astronomical Union Colloquium, 2000
Abstract The generation of radio emission from plasma waves excited by two-stream instability in pulsar magnetospheres is considered. Induced scattering transforms the excited longitudinal waves into waves that escape freely in the form of transverse electromagnetic waves.
openaire   +1 more source