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De Luca

Fakultäten » Mathematisch-naturwissenschaftliche Fakultät » Physik-Institut » Prof. Dr. Philippe Jetzer » De Luca

Completed research project

Title / Titel Analytic Kerr black hole lensing for equatorial observers in the strong deflection limit
PDF Abstract (PDF, 14 KB)
Summary / Zusammenfassung In this paper we present an analytical treatment of gravitational lensing by Kerr black holes in the limit of very large deflection angles, restricting to observers in the equatorial plane. We accomplish our objective starting from the Schwarzschild black hole and adding corrections up to second order in the black hole spin. This is sufficient to provide a full description of all caustics and the inversion of lens mapping for sources near them. On the basis of these formulae we argue that relativistic images of low mass x-ray binaries around Sgr A* are very likely to be seen by future x-ray interferometry missions.
Publications / Publikationen Physical Review D, vol. 72, Issue 8, id. 083003
Project leadership and contacts /
Projektleitung und Kontakte
Fabiana De Luca (Project Leader)  
Prof Dr. Philippe Jetzer  
Funding source(s) /
Unterstützt durch
Universität Zürich (position pursuing an academic career), Others
 
Duration of Project / Projektdauer Oct 2004 to Oct 2005