Brown dwarf candidates in Praesepe

Details Brown dwarf candidates in Praesepe Brown dwarf candidates in Praesepe

May 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997mnras.287..180p&link_type=abstract

Monthly Notices of the Royal Astronomical Society, Volume 287, Issue 1, pp. 180-188.

Astronomy and Astrophysics

Astronomy

28

Stars: Low-Mass, Brown Dwarfs, Stars: Luminosity Function, Mass Function, Open Clusters And Associations: Individual: Praesepe, Dark Matter

Scientific paper

We present a deep R-, I- and Z-band photometric survey of the open cluster Praesepe. 26 new photometric candidates have been found with I>17.8, extending Praesepe's main sequence down to I=21.5. 19 of the new members are brown dwarf candidates, and two could be binary brown dwarfs. Praesepe's mass function is derived, and found to be rising into the brown dwarf range with alpha>=1.5.

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