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L and T dwarfs in Gaia/SIM

Published online by Cambridge University Press:  01 October 2007

R. L. Smart ,
B. Bucciarelli ,
M. G. Lattanzi  and
H. R. A. Jones
R. L. Smart
Affiliation:
Istituto Nazionale di Astrofisica (INAF), Osservatorio Astronomico di Torino, Strada Osservatorio 20, I-10025 Pino Torinese, Italy emails: smart/bucc/lattanzi@to.astro.it
B. Bucciarelli
Affiliation:
Istituto Nazionale di Astrofisica (INAF), Osservatorio Astronomico di Torino, Strada Osservatorio 20, I-10025 Pino Torinese, Italy emails: smart/bucc/lattanzi@to.astro.it
M. G. Lattanzi
Affiliation:
Istituto Nazionale di Astrofisica (INAF), Osservatorio Astronomico di Torino, Strada Osservatorio 20, I-10025 Pino Torinese, Italy emails: smart/bucc/lattanzi@to.astro.it
H. R. A. Jones
Affiliation:
Centre for Astrophysics Research, University of Hertfordshire College Lane, Hatfield AL10 9AB, UK email: H.R.A.Jones@herts.ac.uk
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Abstract

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We discuss the role of distances for understanding brown dwarfs and estimate the contribution expected by Gaia. We show that Gaia will only observe 25% of L and T dwarfs within 50pc which, at a conservative estimate, amounts to less than 400 objects. We discuss how Gaia results will nevertheless aid the ground-based programs providing reliable, bias free constraints for the calculation of parallaxes in an absolute system. We list the current ground-based programs underway and the possibilities for future all sky survey programs.

Keywords

stars: low-massbrown dwarfsstars: distances
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 3 , Symposium S248: A Giant Step: from Milli- to Micro-arcsecond Astrometry , October 2007 , pp. 429 - 432
Copyright
Copyright © International Astronomical Union 2008

References

Becklin, E. E. & Zuckerman, B. 1988, Nature, 336, 656CrossRefGoogle Scholar
Harris, H. C., Canzian, B., Dahn, C. C., et al. 2005, in: Seidelmann, P. K. & Monet, A. K. B., (eds.) Astrometry in the Age of the Next Generation of Large Telescopes, Astronomical Society of the Pacific Conference Series, Vol. 338, p. 122Google Scholar
Hawley, S. L., Covey, K. R., Knapp, G. R., et al. 2002, AJ, 123, 3409CrossRefGoogle Scholar
Kirkpatrick, J. D. 2005, ARAA, 43, 195CrossRefGoogle Scholar
Metchev, S., Kirkpatrick, J. D., Berriman, G. B., & Looper, D. 2007, ArXiv e-printsGoogle Scholar