Very fast X-ray spectral variability in Cygnus X-1: origin of the hard- and soft-state emission components
The way in which the X-ray photon index, ?, varies as a function of count rate is a strong diagnostic of the emission processes and emission geometry around accreting compact objects. Here we present the results from a study using a new, and simple, method designed to improve sensitivity to the meas...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
2013-09-01.
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| Subjects: | |
| Online Access: | Get fulltext |