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Astronomy and Astrophysics 400 (2003) 951-956
Limits on Galactic Dark Matter with 5 Years of EROS SMC Data
C. Afonso1, 2, J.N. Albert3, J. Andersen, R. Ansari3, E. Aubourg2, P. Bareyre1, 2, J.P. Beaulieu4, G. Blanc2, X. Charlot2, F. Couchot3, C. Coutures2, R. Ferlet4, P. Fouque5, J.F. Glicenstein2, B. Goldman1, A. Gould2, D. Graff, M. Gros2, J. Haissinski3, C. Hamadache2, J. De Kat2, T. Lasserre2, L. LeGuillou2, E. Lesquoy2, 4, C. Loup4, C. Magneville2, J.B. Marquette4, E. Maurice, A. Maury, A. Milsztajn2, M. Moniez3, N. Palanque-Delabrouille2, O. Perdereau3, L. prevot6, Y.R. Rahal3, J. Rich2, M. Spiro2, P. Tisserand2, A. Vidal-Madjar4, L. Vigroux2, S. Zylberajch2
For the EROS collaboration(s)

Five years of EROS data towards the Small Magellanic Cloud have been searched for gravitational microlensing events, using a new, more accurate method to assess the impact of stellar blending on the efficiency. Four long-duration candidates have been found which, if they are microlensing events, hint at a non-halo population of lenses. Combined with results from other EROS observation programs, this analysis yields strong limits on the amount of Galactic dark matter made of compact objects. Less than 25% of a standard halo can be composed of objects with a mass between 2 10^-7 Msol and 1 Msol at the 95% C.L.
1:  PCC - Physique Corpusculaire et Cosmologie - Collège de France
2:  DAPNIA - Département d'Astrophysique, de physique des Particules, de physique Nucléaire et de l'Instrumentation Associée
3:  LAL - Laboratoire de l'Accélérateur Linéaire
4:  IAP - Institut d'Astrophysique de Paris
5:  LESIA - Laboratoire d'études spatiales et d'instrumentation en astrophysique
6:  LAM - Laboratoire d'Astrophysique de Marseille
Physics/Astrophysics/Cosmology and Extra-Galactic Astrophysics

Sciences of the Universe/Astrophysics
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