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

Completed research project

Title / Titel Microlensing and initial mass function of the Galactic bulge
PDF Abstract (PDF, 14 KB)
Summary / Zusammenfassung Microlensing and initial mass function of the Galactic bulge
The paper addressing the problem of the shape of the initial mass function of the Galactic bulge using the microlensing observations towards the Galactic center by the MACHO, EROS and OGLE collaborations has appeared. In particular, we considered the duration distribution of the microlensing events. Assuming a power law for the initial mass function we studied the slope, as given by the power law index, both in the brown dwarf and in the main sequence ranges. Moreover, we compared the observed and theoretical, based on Bulge modeling, optical depth pro les, which turn out to be in quite good agreement.
Publications / Publikationen Calchi Novati S., De Luca F., Jetzer Ph., Mancini L. and Scarpetta G., 2008, Mi-
crolensing constraints on the Galactic bulge initial mass function, Astron. & Astro-
phys. 480, 723.
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