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Evolution of spectral parameters during a pre-eclipse dip of Her X-1 | | B. Stelzer
; J. Wilms
; R. Staubert
; D. Gruber
; R. Rothschild
; | | Date: |
7 Dec 1998 | | Subject: | astro-ph | | Affiliation: | 1,2), J. Wilms , R. Staubert , D. Gruber , R. Rothschild ( Institut fuer Astronomie und Astrophysik, Tuebingen, Astronomie, Max-Planck-Institut fuer extraterrestrische Physik, Garching, CASS, University of California at San Diego | | Abstract: | We report on a pre-eclipse dip of the X-ray binary Her X-1 observed by the Rossi X-ray Timing Explorer (RXTE) in July 1996. We present the evolution of the spectral parameters in the 3-18 keV range with a temporal resolution of 16 s and show that the varying flux of the spectrum can be interpreted solely by a time varying column density. We also find that the lightcurve is characterized by symmetric substructures with recurrence time of a few minutes that can be successfully modeled by Gaussian profiles. | | Source: | arXiv, astro-ph/9812128 | | Services: | Forum | Review | PDF | Favorites | |
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