Search results for " pulsars individual IGR J17480-2446"

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The spin and orbit of the newly discovered pulsar IGR J17480-2446

2011

We present an analysis of the spin and orbital properties of the newly discovered accreting pulsar IGR J17480-2446, located in the globular cluster Terzan 5. Considering the pulses detected by the Rossi X-ray Timing Explorer at a period of 90.539645(2) ms, we derive a solution for the 21.27454(8) hr binary system. The binary mass function is estimated to be 0.021275(5) Msun, indicating a companion star with a mass larger than 0.4 Msun. The X-ray pulsar spins up while accreting at a rate of between 1.2 and 1.7E-12 Hz/s, in agreement with the accretion of disc matter angular momentum given the observed luminosity. We also report the detection of pulsations at the spin period of the source dur…

High Energy Astrophysical Phenomena (astro-ph.HE)Physicseducation.field_of_studyAngular momentumAstrophysics::High Energy Astrophysical PhenomenaPopulationFOS: Physical sciencesAstronomy and AstrophysicsAstrophysics::Cosmology and Extragalactic AstrophysicsRadiusAstrophysicsstars neutron stars rotation X-rays binaries pulsars individual IGR J17480-2446Accretion (astrophysics)LuminosityNeutron starSettore FIS/05 - Astronomia E AstrofisicaPulsarSpace and Planetary ScienceGlobular clusterAstrophysics::Solar and Stellar AstrophysicsAstrophysics::Earth and Planetary AstrophysicsAstrophysics - High Energy Astrophysical PhenomenaeducationAstrophysics::Galaxy Astrophysics
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