Galactic Bulge microlensing optical depth from EROS-2

  title={Galactic Bulge microlensing optical depth from EROS-2},
  author={C. Hamadache and L. Guillou and P. Tisserand and C. Afonso and J. N. Albert and J. Andersen and R. Ansari and {\'E}. Aubourg and P. Bareyre and J. Beaulieu and X. Charlot and C. Coutures and R. Ferlet and P. Fouqu'e and J. Glicenstein and B. Goldman and A. Gould and D. Graff and M. Gros and J. Haissinski and J. D. Kat and {\'E}. Lesquoy and C. Loup and C. Magneville and J. B. Marquette and E. Maurice and A. Maury and A. Milsztajn and M. Moniez and N. Palanque-Delabrouille and O. Perdereau and Y. Rahal and J. Rich and M. Spiro and A. Vidal-Madjar and L. Vigroux and S. Zylberajch},
  journal={Astronomy and Astrophysics},
  • C. Hamadache, L. Guillou, +34 authors S. Zylberajch
  • Published 2006
  • Physics
  • Astronomy and Astrophysics
  • We present a new EROS-2 measurement of the microlensing optical depth toward the Galactic Bulge. Light curves of $5.6\times 10^{6}$ clump-giant stars distributed over $66 \deg^2$ of the Bulge were monitored during seven Bulge seasons. 120 events were found with apparent amplifications greater than 1.6 and Einstein radius crossing times in the range $5 {\rm d} 
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