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Browsing by Author "Kara, E."
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Accretion Disk Wind of Hercules X-1 during the Short High State
Kosec, P.; Kara, E.; Fabian, A. C.; Pinto, C.; Psaradaki, I.; Rogantini, D.; Staubert, R.; Walton, D. J. (2023-12-05)Hercules X-1 is a nearly edge-on X-ray binary with a warped, precessing accretion disk, which manifests through a 35-day cycle of alternating High and Low flux states. This disk precession introduces a changing line of ... -
Constraining the Number Density of the Accretion Disk Wind in Hercules X-1 Using its Ionization Response to X-ray Pulsations
Kosec, P.; Rogantini, D.; Kara, E.; Canizares, C. R.; Fabian, A. C.; Pinto, C.; Psaradaki, I.; Staubert, R.; Walton, D. J. (2024-08-22)X-ray binaries are known to launch powerful accretion disk winds that can have significant impact on the binary systems and their surroundings. To quantify the impact and determine the launching mechanisms of these outflows, ... -
The Long Stare at Hercules X-1. I. Emission Lines from the Outer Disk, the Magnetosphere Boundary, and the Accretion Curtain
Kosec, P.; Kara, E.; Fabian, A. C.; Fürst, F.; Pinto, C.; Psaradaki, I.; Reynolds, C. S.; Rogantini, D.; Walton, D. J.; Ballhausen, R.; Canizares, C.; Dyda, S.; Staubert, R.; Wilms, J. (2022-09-14)Hercules X-1 is a nearly edge-on accreting X-ray pulsar with a warped accretion disk, precessing with a period of about 35 days. The disk precession allows for unique and changing sightlines toward the X-ray source. To ...