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Journal Articles Astronomy and Astrophysics - A&A Year : 2006

Galactic bulge microlensing optical depth from eros-2

J. Andersen
  • Function : Author
P. Fouqué
  • Function : Author
A. Gould
  • Function : Author
D. Graff
  • Function : Author
E. Maurice
  • Function : Author
A. Maury
  • Function : Author

Abstract

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}

Dates and versions

in2p3-00080147 , version 1 (23-09-2006)

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C. Hamadache, L. Le Guillou, P. Tisserand, C. Afonso, J.N. Albert, et al.. Galactic bulge microlensing optical depth from eros-2. Astronomy and Astrophysics - A&A, 2006, 454, pp.185-199. ⟨10.1051/0004-6361:20064893⟩. ⟨in2p3-00080147⟩
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