Teide 1 is a brown dwarf located around 430 light years away in the Pleiades. It was the first brown dwarf to be confirmed. Its surface temperature is 2,600 ± 150 K, [6] which is about half that of the Sun.

Jul 1, 1996 · We present 10 m Keck spectra of the two Pleiades brown dwarfs Teide 1 and Calar 3 showing a clear detection of the 670.8 nm Li resonance line. In Teide 1, we have also obtained evidence for the presence of the subordinate line at 812.6 nm.

Results of the numerical simulation of spectra of the Pleiades brown dwarfs Calar 3 and Teide 1 are discussed. Synthetical spectra were computed for several model atmospheres from a grid of Allard and Hauschildt (1995).

In this paper we use the 620 930 nm spectra of Teide 1 and Calar 3 observed with effective resolution 0.3 nm by Rebolo et al. (1995) and Mart ́ınet al. (1996) at the 4.2 m William Herschel telescope (La Palma, Spain) and the 3.5 m Calar Alto telescope (Almeria, Spain).

Jan 1, 2013 · We reported the discovery of Teide Pleiades 1 (hereafter Teide 1) and claimed its brown dwarf nature on the basis of the photometric, spectroscopic and astrometric/radial velocity information that we had obtained using several telescopes in the Canary Islands (Spain).

This illustration shows the sizes and surface temperatures of brown dwarfs Teide 1, Gliese 229B, and WISE1828 in relation to the Sun, a red dwarf star (Gliese 229A), and Jupiter. (credit: modification of work by MPIA/V. Joergens)

Results of the numerical simulation of spectra of the Pleiades brown dwarfs Calar 3 and Teide 1 are discussed. Synthetical spectra were computed for several model atmospheres from a grid of Allard and Hauschildt (1995).

An offset has been added to the spectrum of Teide 1 for clarity. This spectrum confirmed the discovery of the coldest quasi-stellar object known in the Universe, the brown dwarf Teide 1.

The optical spectrum of Teide 1 (upper trace) and of the M9 dwarf LHS 2065 (lower trace). The flux scale of both spectra is normalized to unity at 825 nm. An offset has been added to the spectrum of Teide 1 for clarity. This spectrum confirmed the discovery of the coldest quasi-stellar object known in the Universe, the brown dwarf Teide 1.

We present Keck Observatory 10 m telescope spectra of the two Pleiades brown dwarfs, Teide 1 and Calar 3, showing a clear detection of the Li 670.8 nm resonance line.