Hostname: page-component-8448b6f56d-jr42d Total loading time: 0 Render date: 2024-04-25T02:19:14.120Z Has data issue: false hasContentIssue false
  • English
  • Français

A Deep JI Survey of the Pleiades for Freely-Floating Superplanets and Brown Dwarfs at the Deuterium Burning Limit

Published online by Cambridge University Press:  26 May 2016

M. J. Schwartz ,
E. E. Becklin  and
B. Zuckerman
M. J. Schwartz
Affiliation:
University of California Los Angeles, 8371 Mathematical Sciences Building, Los Angeles CA 90095–1562
E. E. Becklin
Affiliation:
University of California Los Angeles, 8371 Mathematical Sciences Building, Los Angeles CA 90095–1562
B. Zuckerman
Affiliation:
University of California Los Angeles, 8371 Mathematical Sciences Building, Los Angeles CA 90095–1562

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

We present preliminary results from a deep near-infrared J-band and I-band photometric survey of the Pleiades for freely-floating superplanets and brown dwarfs (BD) near the deuterium burning limit (DBL). With limiting magnitudes of J=20.5 and I=23.5, we have selected candidate Pleiads on the basis of evolutionary tracks, color-magnitudes, and I-J color lower limits (non-detections at deep I-band). Likelihoods of membership will be ultimately determined by a combination of image profile analysis, spectral energy distribution, proper motion, and low-resolution measurements of near-infrared water and/or methane absorption slopes. If confirmed, our faintest candidates are predicted to have made the transition from L to T spectral types with temperatures down to 820 K, and masses approaching 10 MJup.

Type
Part 4. Observations of Young Brown Dwarfs (age ≃ 50–200 Myr)
Information
Symposium - International Astronomical Union , Volume 211: Brown Dwarfs , 2003 , pp. 185 - 186
Copyright
Copyright © Astronomical Society of the Pacific 2001 

References

Burrows, et al., 1998, ASP Conf. Vol. 134,Google Scholar
Burrows, 2000, private communication, Nov. Google Scholar
Martín, et al., 2000, ApJ 543, 299 Google Scholar
Moraux, E., Bouvier, J., Stauffer, J., 2001, AA 367, 211 Google Scholar