The Substellar IMF of the Taurus Cloud

New young brown dwarfs in the Taurus SFR
  • Jean-Louis Monin
  • Sylvain Guieu
  • Catherine Dougados
  • Eduardo L. Martín
  • Eugene Magnier
Conference paper
Part of the Astrophysics and Space Science Library book series (ASSL, volume 327)

Abstract

Recent studies have found a deficit of substellar objects in the Taurus cloud (Briceño et al. 1998; Luhman 2000). If confirmed, the higher low-mass cutoff in Taurus could have strong implications on IMF and substellar formation models. However, these previous studies have sampled the highest density regions of the Taurus cloud, and if brown dwarfs are ejected during their formation (Reipurth & Clarke 2001), a significant fraction of the substellar content of the cloud may have been missed. In order to enlarge the Taurus study, we have performed an optical (I,z) large photometric survey using the CFH12K camera on the Canada-France-Hawaii Telescope (CFHT). In this poster, we present new substellar candidates obtained from our (I,z) survey and further FORS1/VLT and LRIS/Keck spectroscopic analysis. We then compare our results with previous studies of Briceño et al. (2002) and Luhman et al. (2003).

Keywords

Prep 

References

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Copyright information

© Springer 2005

Authors and Affiliations

  • Jean-Louis Monin
    • 1
    • 2
  • Sylvain Guieu
    • 1
  • Catherine Dougados
    • 1
  • Eduardo L. Martín
    • 3
  • Eugene Magnier
    • 4
  1. 1.Laboratoire d’Astrophysique de GrenobleFrance
  2. 2.Institut Universitaire de FranceFrance
  3. 3.Instituto de Astrofisica de Canarias, Institute
  4. 4.Canada-France-Hawaii Telescope CorporationKamuelaUSA

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