Search results for "Gamma-rays: star"

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SAX J1808.4-3658, an accreting millisecond pulsar shining in gamma rays?

2016

We report the detection of a possible gamma-ray counterpart of the accreting millisecond pulsar SAX J1808.4-3658. The analysis of ~6 years of data from the Large Area Telescope on board the Fermi Gamma-ray Space Telescope (Fermi-LAT) within a region of 15deg radius around the position of the pulsar reveals a point gamma-ray source detected at a significance of ~6 sigma (Test Statistic TS = 32), with position compatible with that of SAX J1808.4-3658 within 95% Confidence Level. The energy flux in the energy range between 0.6 GeV and 10 GeV amounts to (2.1 +- 0.5) x 10-12 erg cm-2 s-1 and the spectrum is well-represented by a power-law function with photon index 2.1 +- 0.1. We searched for si…

Astrophysics::High Energy Astrophysical PhenomenaPulsar planetEnergy fluxFOS: Physical sciencesGamma-rays: starAstrophysics01 natural sciencesBinary pulsarSettore FIS/05 - Astronomia E AstrofisicaSpitzer Space TelescopePulsarMillisecond pulsar0103 physical sciences010303 astronomy & astrophysicsPhysicsHigh Energy Astrophysical Phenomena (astro-ph.HE)010308 nuclear & particles physicsAstronomyAstronomy and AstrophysicsStars: neutronStars: individual: SAX J1808.4-3658Space and Planetary ScienceOrbital motionstars; Stars: individual: SAX J1808.4-3658; Stars: neutron; Space and Planetary Science; Astronomy and Astrophysics [Gamma-rays]Astrophysics - High Energy Astrophysical PhenomenaFermi Gamma-ray Space Telescope
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