0000000000537698

AUTHOR

David R. Ballantyne

showing 2 related works from this author

A self-consistent approach to the hard and soft states of 4U 1705-44

2010

We analyzed two XMM-Newton observations of the bright atoll source 4U 1705-44, which can be considered a prototype of the class of the persistent NS LMXBs showing both hard and soft states. The first observation was performed when the source was in a hard low flux state, the second during a soft, high-flux state. Both the spectra show broad iron emission lines. We fit the spectra using a two-component model, together with a reflection model specifically suited to the case of a neutron star, where the incident spectrum has a blackbody shape. In the soft state, the reflection model, convolved with a relativistic smearing component, consistently describes the broad features present in the spec…

PhysicsHigh Energy Astrophysical Phenomena (astro-ph.HE)Astrophysics::High Energy Astrophysical PhenomenaFOS: Physical sciencesAstronomy and AstrophysicsAstrophysicsAstrophysicsSpectral lineBoundary layerNeutron starSettore FIS/05 - Astronomia E AstrofisicaSoft stateSpace and Planetary ScienceIonizationThermalBlack-body radiationEmission spectrumAstrophysics - High Energy Astrophysical Phenomena
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Observatory science with eXTP

2019

Disponible preprint en: arXiv:1812.04023v1 [astro-ph.HE] [v1] Mon, 10 Dec 2018 19:00:52 UTC (4,376 KB)

cataclysmic binariesAstronomyFIELD CAMERAS OBSERVATIONSspace research instruments nuclear astrophysics flare stars accretion and accretion disks mass loss and stellar winds cataclysmic binaries X-ray binaries supernova remnants active galactic nuclei X-ray bursts gamma-ray bursts gravitational wavesGeneral Physics and Astronomygamma-ray burstspace research instrument01 natural sciencesGamma ray burstsObservatoryAccretion and accretion disksAstrophysics::Solar and Stellar Astrophysics010303 astronomy & astrophysicsgravitational waveaccretion and accretion diskPhysicsHigh Energy Astrophysical Phenomena (astro-ph.HE)supernova remnants[SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph][SDU.ASTR.HE]Sciences of the Universe [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE]flare starsgamma-ray burstsAstrophysics::Instrumentation and Methods for Astrophysicsaccretion and accretion disks; active galactic nuclei; cataclysmic binaries; flare stars; gamma-ray bursts; gravitational waves; mass loss and stellar winds; nuclear astrophysics; space research instruments; supernova remnants; X-ray binaries; X-ray bursts; Physics and Astronomy (all)Space research instrumentsX ray burstSupernovaX-ray binariesgravitational wavesaccretion and accretion disksQUIETHigh massX-ray binarieMass loss and stellar windsNuclear astrophysicsGamma-ray burstsspace research instrumentsAstrophysics - High Energy Astrophysical PhenomenaPULSAR-WIND NEBULAEFAST RADIO-BURSTSAstrofísica nuclearActive galactic nucleusTIDAL DISRUPTIONSupernova remnantsAstrophysics::High Energy Astrophysical Phenomenanuclear astrophysicsPolarimetryFOS: Physical sciencesAstrophysics::Cosmology and Extragalactic AstrophysicsACCRETING NEUTRON-STARSaccretion and accretion disks; active galactic nuclei; cataclysmic binaries; flare stars; gamma-ray bursts; gravitational waves; mass loss and stellar winds; nuclear astrophysics; space research instruments; supernova remnants; X-ray binaries; X-ray burstsGravitational wavesPhysics and Astronomy (all)cataclysmic binarieSettore FIS/05 - Astronomia e AstrofisicaSUPERMASSIVE BLACK-HOLES0103 physical sciences010306 general physicsX-ray burstAstrophysics::Galaxy AstrophysicsCataclysmic binariesActive galactic nucleiflare starAstronomyWhite dwarfFlare starsStarssupernova remnantQB460-466 Astrophysics[SDU]Sciences of the Universe [physics]mass loss and stellar wind:Física::Astronomia i astrofísica [Àrees temàtiques de la UPC]active galactic nucleiX-RAYX-ray burstsSupernova remmantsmass loss and stellar windsX ray binaries[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]SEYFERT 1 GALAXYnuclear astrophysic
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