0000000000856578

AUTHOR

B. Mück

showing 2 related works from this author

Broadband observations of the X-ray burster 4U1705-44 with Beppo SAX

2016

4U 1705-44 is one of the most-studied type I X-ray burster and Atoll sources. This source represents a perfect candidate to test different models proposed to self-consistently track the physical changes occurring between different spectral states because it shows clear spectral state transitions. The broadband coverage, the sensitivity and energy resolution of the BeppoSAX satellite offers the opportunity to disentangle the components that form the total X-ray spectrum and to study their changes according to the spectral state. Using two BeppoSAX observations carried out in August and October 2000, respectively, for a total effective exposure time of about 100 ks, we study the spectral evol…

X-ray bursterAstrophysics::High Energy Astrophysical PhenomenaFOS: Physical sciencesContext (language use)AstrophysicsX-rays: general01 natural sciencesSpectral lineAccretion accretion diskStars: individual: 4U 1705-44Settore FIS/05 - Astronomia E Astrofisica0103 physical sciencesBlack-body radiationX-rays: star010303 astronomy & astrophysicsLine (formation)High Energy Astrophysical Phenomena (astro-ph.HE)PhysicsAccretion (meteorology)010308 nuclear & particles physicsAstronomy and AstrophysicsAstronomy and AstrophysicX-rays: binarieStars: neutronNeutron starSpace and Planetary ScienceReflection (physics)individual: 4U 1705-44; Stars: neutron; X-rays: binaries; X-rays: general; X-rays: stars; Astronomy and Astrophysics; Space and Planetary Science [Accretion accretion disks; Stars]Astrophysics - High Energy Astrophysical Phenomena
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A relativistic iron emission line from the neutron star low-mass X-ray binary GX 3+1

2012

We present the results of a spectroscopic study of the Fe K{\alpha} emission of the persistent neutron-star atoll low-mass X-ray binary and type I X-ray burster GX 3+1 with the EPIC-PN on board XMM-Newton. The source shows a flux modulation over several years and we observed it during its fainter phase, which corresponds to an X-ray luminosity of Lx~10^37 ergs/s. When fitted with a two-component model, the X-ray spectrum shows broad residuals at \sim6-7 keV that can be ascribed to an iron K{\alpha} fluorescence line. In addition, lower energy features are observed at \sim3.3 keV, \sim3.9 keV and might originate from Ar XVIII and Ca XIX. The broad iron line feature is well fitted with a rela…

PhysicsHigh Energy Astrophysical Phenomena (astro-ph.HE)010308 nuclear & particles physicsAstrophysics::High Energy Astrophysical Phenomenaidentification line: profiles X-rays: individuals: GX 3+1 X-rays: binaries stars: neutron [line]X-ray binaryFOS: Physical sciencesAstronomy and AstrophysicsAstrophysicsRadiusAstrophysics::Cosmology and Extragalactic AstrophysicsType (model theory)01 natural sciencesLuminosityNeutron starSettore FIS/05 - Astronomia E Astrofisicaline: identification line: profiles X-rays: individuals: GX 3+1 X-rays: binaries stars: neutronSpace and Planetary Science0103 physical sciencesEmission spectrumAstrophysics - High Energy Astrophysical PhenomenaLow Mass010303 astronomy & astrophysicsAstrophysics::Galaxy AstrophysicsLine (formation)
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