The mass function and mass segregation in NGC 2516

Details The mass function and mass segregation in NGC 2516 The mass function and mass segregation in NGC 2516

Oct 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003csss...12..793j&link_type=abstract

The Future of Cool-Star Astrophysics: 12th Cambridge Workshop on Cool Stars, Stellar Systems, and the Sun (2001 July 30 - August

Astronomy and Astrophysics

Astrophysics

1

Open Clusters, Mass Function, Mass Segregation, Low-Mass Stars

Scientific paper

We present the results of a 0.86 square degree BVIc survey of the open cluster NGC 2516, which has an age of 150 Myr and may have a much lower metallicity than the similarly-aged Pleiades. We select 1254 low mass ( 0.20.6, in good agreement with the Pleiades. The mass function is slightly model and metallicity dependent, but consistent with a Salpeter-like law ( dN/d log M ∝ M-α) with α = +1.6±0.2 for 0.70.3M&sun; inside our survey is 1000M&sun;. Correcting for mass segregation and binarity increases this to ˜1400M&sun;, about twice that of the Pleiades.

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