Astronomy and Astrophysics – Astrophysics
Scientific paper
Aug 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009a%26a...503..639t&link_type=abstract
Astronomy and Astrophysics, Volume 503, Issue 2, 2009, pp.639-650
Astronomy and Astrophysics
Astrophysics
7
Stars: Low-Mass, Brown Dwarfs, Stars: Fundamental Parameters, Infrared: Stars
Scientific paper
We present complete near-infrared (0.85-2.45 μm), low-resolution (R ~ 100) spectra of a sample of 54 disk M-, L-, and T-dwarfs with reliable optical or near infrared spectral-type classification from the literature. The observations were obtained with a prism-based optical element, the Amici device, which provides a complete spectrum of the source on the detector. Our observations indicate that low-resolution near-infrared spectroscopy can be used to determine the spectral classification of late-type field dwarfs in a fast but accurate way. We derive a set of near-infrared spectral indices that are useful to the classification of field dwarfs not seriously affected by reddening. Finally, we show that the comparison of Amici spectra with model atmospheres allows us to obtain a reliable estimate of the dwarf effective temperatures.
All the spectra presented in this paper are only available in electronic form at the CDS via anonymous ftp to cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/503/639
No associations
LandOfFree
A low-resolution near-infrared spectral library of M-, L-, and T-dwarfs does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with A low-resolution near-infrared spectral library of M-, L-, and T-dwarfs, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A low-resolution near-infrared spectral library of M-, L-, and T-dwarfs will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1312538