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A Large, Deep Survey of the Taurus Dark Clouds

  • S. L. Osborne (a1), R. F. Jameson (a1), P. D. Dobbie (a1) and E. L. Martín (a2)

Abstract

Preliminary results from a deep R, I and Z band survey of ~ 6 square degrees of the Taurus Dark Cloud region are presented. 186 potential brown dwarfs have been unearthed, with seven having follow-up spectroscopic data. The spectra reveal three mid/late-type M dwarfs, of which two show weak Hα emission. If these objects are members of the TDC region, theoretical models suggest masses in the range 10 – 20 MJ.

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References

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Baraffe, I., Chabrier, G., Allard, F., & Hauschildt, P.H. 2002, A&A, 382, 563
Burrows, A., et al. 1997, ApJ, 491, 856
Martín, E.L., Rebolo, R., & Zapatero Osorio, M.R. 1996, ApJ, 469, 706
Martín, E.L., et al. 2001, ApJ, 561, L195
Palla, F., & Stahler, S.W. 2000, ApJ, 540, 255

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