出版社:SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要:The pulse-phase resolved spectroscopy at different luminosities using for the study of the matter distribution in X-ray pulsars requires a new generation of instruments with high timing and spectroscopic capabilities. Based on the current results of the analysis of the emission from transient X-ray pulsars (e.g., V0332+53) obtained with the RXTE observatory we demonstrated a strong variability of the source spectral parameters with the pulse phase. We also showed that properties of the fluorescent iron line emission (particularly a variability of its equivalent width on the time scale of the pulse period) can be used to investigate the spatial distribution and physical conditions of the matter around the compact object.