Transient black hole candidates observed with INTEGRAL

Capitanio, Fiamma (2007) Transient black hole candidates observed with INTEGRAL. University of Southampton, Doctoral Thesis.

Record type: Thesis (Doctoral)

Abstract

The first part of the work is focused on two specific sources: IGR J17091-3624 and H1743-322 considered as part of a sample of 7 transient black hole candidates (BHC) observed by INTEGRAL in outburst. Both sources have been followed by INTEGRAL for the entire outburst duration on a wide energy range from 3 keV up to 250 keV. The combined spectral evolution of H1743-322 with the X-ray monitor, JEM-X, the γ-ray telescope, IBIS and the spectrometer, SPI, gives a clear vision of a black hole candidate spectral evolution from hard to soft state and then back to hard state. The set of data used for IGR J17091-3624 analysis allowed a joint fit of a RXTE/INTEGRAL spectrum in the low/hard state. Also a soft state black body emission of the source is reported for the first time.

The second part of this thesis is focused on the analysis of all the archive data of the wide field cameras (WFCs) on board BeppoSAX satellite. Previous works published are dedicated on transient sources detection, while this work, producing a mosaic of the images of all the single WFC pointing, is more optimised for fainter, persistent sources observations. Since a final catalogue of the sources detected with the wide field cameras has not been published yet, this work represent the first unbiased source list compilation produced in this way from overall WFCs data set. The mosaiking technique approach, developed for the IBIS survey, has been successfully applied, for the first time, to the BeppoSAX WFCs.

Text

1066265.pdf - Version of Record

Available under License University of Southampton Thesis Licence.

Download (3MB)