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Jetzer

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

Completed research project

Title / Titel Microlensing towards Globular clusters
PDF Abstract (PDF, 14 KB)
Summary / Zusammenfassung We analysed the large set of microlensing events detected so far towards the Galactic
center with the purpose of investigating whether some of the dark lenses are located in
Galactic globular clusters. We found that in four cases some events might indeed be
due to lenses located in the globular clusters themselves. We got a rough estimate for
the average lens mass of the subset of events being highly aligned with Galactic globular
cluster centers and found that, under reasonable assumptions, the de
ectors might most
probably be either brown dwarfs, M-stars or stellar remnants.
Publications / Publikationen De Luca F. and Jetzer Ph., 2008, Galactic globular cluster contribution to microlens-
ing events?, Int. J. Mod. Phys. D 17, 2305.
Project leadership and contacts /
Projektleitung und Kontakte
Prof Philippe Jetzer (Project Leader)  
Dr Fabiana de Luca  
Funding source(s) /
Unterstützt durch
Universität Zürich (position pursuing an academic career), SNF (Personen- und Projektförderung), Others
 
Duration of Project / Projektdauer Jan 2008 to Dec 2008