LARS GRYGOSCH'S MASTER'S THESIS PROJECT ON BLACK HOLES

Isolated Black Holes - Prospects for Detection with eROSITA
The German/Russian satellite eROSITA will be launched ultimo 2017. Within 250 pc from our Sun, as many as 35000 isolated black holes (BHs) may be present. These isolated BHs may accreted gas from the interstellar medium (molecular gas clouds), possibly making them detectable with the eROSITA all-sky survey. The aims of this project are to: estimated the local number density of isolated BHs, perform Monte Carlo simulations of their X-ray emission and highlight the prospects for detection using eROSITA.
Bibliography:
   - The closest black holes, Fender et al. 2013, MNRAS 430, 1538
   - eROSITA Science Book: Mapping the Structure of the Energetic Universe,
     Merloni et al. (2012), astro-ph arXiv:1209.3114


NEW MASTER'S THESIS PROJECT ON BLACK HOLES

Formation of Black Hole Binaries (Soft X-ray Transients)
There are about 25 black holes detected in our Galaxy. These black holes are, so far, only found in binaries and mainly with a low-mass companion star. The black holes are detected from the X-rays emitted by the in-falling gas when the black holes virtually consume their companion star in a close orbit binary system. In this project, we will model the formation of these black hole systems (also know as soft X-ray transients) via exotic binary evolution involving mass transfer, common envelope evolution and the dynamical effects of supernova explosions.
Bibliography:
   - On the formation and evolution of black-hole binaries,
     Podsiadlowski et al. (2003), MNRAS 341, 385

Contact:
Prof. Dr. Thomas Tauris      tauris (at) astro.uni-bonn.de

Site:
Bonn, Argelander Institute for Astronomy, University of Bonn
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