1989•Publications of the Astronomical Society of JapanRequires access

Energy spectra and pulse profiles of Hercules X-1 at pre-eclipse dips.

Naoko Ushimaru, Yuzuru Tawara, K. Koyama, S. Hayakawa, T. Kii, F. Nagase, T. Ohashi, K. Makishima

Abstract

Les spectres d'energie et les profils d'impulsion du pulsar binaire RX Her X-1, d'apres les observations du satellite Tenma, sont analyses pour deux minimums de pre-clipse consecutifs. Les differences entre les deux minimums sont etudiees, et pourraient provenir d'un changement violent dans le gaz circumstellaire irradie par les rayons X

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Key concepts: Physics, Eclipse, Astrophysics, Spectral line, Astronomy