Observational evidence for a changing tilt of the accretion disk with respect to the orbital plane in Her X-1 over its 35 day cycle

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dc.creatorKlochkov, D.
dc.creatorShakura, N.
dc.creatorPostnov, K.
dc.creatorStaubert, R.
dc.creatorWilms, J.
dc.creatorKetsaris, N.
dc.date2006-09-11
dc.date2007-11-12
dc.date.accessioned2026-07-07T08:41:55Z
dc.date.available2026-07-07T08:41:55Z
dc.descriptionAnalysis and interpretation of the Her X-1 X-ray light curve obtained with the ASM onbord RXTE over the period 1996 February to 2004 September is presented. We report that the features found previously in the averaged X-ray lightcurve are confirmed by the new RXTE/ASM data. In particular, anomalous dips and post-eclipse recoveries in two successive orbits in the short-on state are found to be prominent and stable details of the light curve. We argue that a change of the tilt of the accretion disk over the 35-day period is necessary to account for these features and show that our numerical model can explain such a behavior of the disk and reproduce the observed details of the light curve.
dc.description9 pages, 8 figures, accepted for publication in PAZH
dc.identifierhttps://arxiv.org/abs/astro-ph/0609276
dc.identifierhttp://arxiv.org/abs/astro-ph/0609276
dc.identifier2006, Astronomy Letters, Volume 32, Issue 12, pp.804-815
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/141828
dc.subjectAstrophysics
dc.titleObservational evidence for a changing tilt of the accretion disk with respect to the orbital plane in Her X-1 over its 35 day cycle
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