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Preprint 02i/02

Pulse Phase Resolved Spectroscopy of Her X-1

P. Risse (1), I. Kreykenbohm (1), M. Kuster (1), J. Wilms (1), R. Staubert (1), W. A. Heindl (2), W. Coburn (3)

(1) Institut für Astronomie und Astrophysik, Astronomie, Universität Tübingen, Sand 1, D-72076 Tübingen, Germany
(2) Center for Astrophysics and Space Sciences, University of California, San Diego, La Jolla, CA 92093, USA
(3) Space Sciences Laboratory, University of California, Berkeley, Berkeley, CA, 94702-7450, U.S.A.}

in: New Visions of the X-ray Universe in the XMM-Newton and Chandra Era, eds. F. Jansen & TBD, ESA SP-488, 2002

Abstract.

We present preliminary results of a RXTE observation taken shortly after the end of the anomalous low-state (ALS) of Her X-1 in 2000 December.

The observation consists of 48 different individual pointings 1 ks and 8 ks long. Pulse phase resolved spectra from HEXTE are presented with special attention to the parameters of the cyclotron line at different pulse phases.

Key words: X-rays: stars - stars: individual: Her X-1

Paper (80k gzip'ed Postscript including figures)

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