SCYON Abstract

Received on September 6 2002

The Lower Mass Function of Young Open Clusters

Authors	J. Bouvier¹, E. Moraux¹, J.R. Stauffer², D. Barrado y Navascués³ & J.-C. Cuillandre⁴
Affiliation	¹ Laboratoire d'Astrophysique, Observatoire de Grenoble, B.P.53, 38041 Grenoble Cedex 9, France ² SIRTF Science Center, California Institute of Technology, Pasadena, CA 91125, USA ³ LAEFF-INTA, Apdo. 50727, Madrid, Spain ⁴ Canada-France-Hawaii Telescope Corp., Kamuela, HI 96743, USA
To appear in	Proceedings of IAU 211 "Brown Dwarfs", E.L. Martin ed.
Contact	jbouvier@obs.ujf-grenoble.fr
URL
Links	Pleiades / NGC 2516 / Blanco 1 / NGC 2168 / Alpha Per

Abstract

We report new estimates for the lower mass function of 5 young open clusters spanning an age range from 80 to 150 Myr. In all studied clusters, the mass function across the stellar/substellar boundary (~ 0.072 M_sun) and up to 0.4 M_sun is consistent with a power-law with an exponent alpha ~ -0.5 ± 0.1$, i.e., dN/dM ~ M^-0.5.