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Spectroscopy of planetary mass brown dwarfs in Orion

Abstract:

We report the results of near infrared spectroscopy of 11 luminosity-selected candidate planetary mass objects (PMOs) in the Trapezium Cluster with Gemini South/Gemini Near-Infrared Spectrograph and Gemini North/Near-Infrared Imager. Six have spectral types ≥M9, in agreement with expectations for PMOs. Two have slightly earlier types, and three are much earlier types which are probably field stars. Four of the six sources with types ≥M9 have pseudo-continuum profiles which confirm them as low...

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Publication status:
Published

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Institution:
University of Oxford
Division:
MPLS
Department:
Physics
Sub department:
Astrophysics
Role:
Author
Journal:
Monthly Notices of the Royal Astronomical Society
Volume:
373
Issue:
1
Pages:
L60-L64
Publication date:
2006-11-21
DOI:
EISSN:
1745-3933
ISSN:
0035-8711
Source identifiers:
23486
Language:
English
Keywords:
Pubs id:
pubs:23486
UUID:
uuid:78e931ff-9050-4b02-a852-cd4f348787ba
Local pid:
pubs:23486
Deposit date:
2012-12-19

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