Variability and Spectra of Two Neutron Stars in 47 Tucanae

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dc.creatorHeinke, C. O.
dc.creatorGrindlay, J. E.
dc.creatorLloyd, D. A.
dc.creatorEdmonds, P. D.
dc.date2001-12-06
dc.date.accessioned2026-07-07T02:01:42Z
dc.date.available2026-07-07T02:01:42Z
dc.descriptionWe report spectral and variability analysis of two quiescent low mass x-ray binaries (previously identified with ROSAT HRI as X5 and X7) in the globular cluster 47 Tuc, from a Chandra ACIS-I observation. X5 demonstrates sharp eclipses with an 8.666+-0.008 hr period, as well as dips showing an increased N_H column. Their thermal spectra are well-modelled by unmagnetized hydrogen atmospheres of hot neutron stars, most likely heated by transient accretion, with little to no hard power law component.
dc.description4 pages, 2 figures, to appear in "Neutron Stars in Supernova Remnants" (ASP Conference Proceedings), eds P. O. Slane and B. M. Gaensler
dc.identifierhttps://arxiv.org/abs/astro-ph/0112127
dc.identifierhttp://arxiv.org/abs/astro-ph/0112127
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/3847
dc.subjectAstrophysics
dc.titleVariability and Spectra of Two Neutron Stars in 47 Tucanae
dc.typetext

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