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A Deep Large Scale Survey for Intermediate Age Brown Dwarfs in the Praesepe Cluster

Published online by Cambridge University Press:  26 May 2016

R. J. Chappelle ,
D. J. Pinfield  and
I. A. Steele
R. J. Chappelle
Affiliation:
Astrophysics Research Institute, Liverpool John Moores University, Egerton Wharf, Birkenhead CH41 1LD, UK
D. J. Pinfield
Affiliation:
Astrophysics Research Institute, Liverpool John Moores University, Egerton Wharf, Birkenhead CH41 1LD, UK
I. A. Steele
Affiliation:
Astrophysics Research Institute, Liverpool John Moores University, Egerton Wharf, Birkenhead CH41 1LD, UK

Abstract

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We present a 1.4 square degree survey of the Praesepe open cluster complete to I = 21.3 and Z = 20.2. This corresponds to masses down to 0.06M⊙ and 0.075M⊙ for an assumed cluster age of 1.0 or 0.5 Gyrs respectively. Over fifty new Praesepe candidate members have been discovered with masses less than 0.25M⊙. We discuss plans to establish proper motions of identified Praesepe candidates, and to measure NIR photometry of our candidates.

Type
Part 5. Imaging Searches for Mature Ultracool Dwarfs
Information
Symposium - International Astronomical Union , Volume 211: Brown Dwarfs , 2003 , pp. 211 - 212
Copyright
Copyright © Astronomical Society of the Pacific 2001 

References

Crawford, D. L., 1969, AJ, 74, 818 Google Scholar
Hambly, N.C. et al., 1995, MNRAS, 273, 505 Google Scholar
Hodgkin, S. T. et al., 1999, MNRAS, 310, 87 CrossRefGoogle Scholar
Jones, B. F., & Stauffer, J. R. 1991, AJ, 102, 1080 Google Scholar
Magazzù, A. et al., 1998, ApJ, 497, L47 CrossRefGoogle Scholar
Pinfield, D. J. et al., 1997, MNRAS, 287, 180 CrossRefGoogle Scholar