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Library of high and mid-resolution spectra in the CaII H & K, H{alpha}, H{beta}, NaI D{1}, D{2}, and HeI D{3} line regions of F, G, K and M field stars
D. Montes, E. L. Martin, M. J. Fernandez-Figueroa +2
In this work we present spectroscopic observations centered in the spectral lines most widely used as optical indicators of chromospheric activity (H{alpha}, H{beta}, Ca II H & K,…
Brown Dwarfs in the Pleiades Cluster Confirmed by the Lithium Test
R. Rebolo, E. L. Martin, G. Basri +2
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 evi…
H_alpha emission fluxes and lithium abundances of low mass stars in the young open cluster IC 4665
E. L. Martin, D. Montes
As part of a long term effort to understand pre-main sequence Li burning, we have obtained high resolution spectroscopic observations of 14 late type stars (G0--M1) in the young op…
Brown Dwarfs in the Pleiades Cluster: a CCD-based R,I survey
M. R. Zapatero Osorio, R. Rebolo, E. L. Martin
We have obtained deep CCD R and I mosaic imaging of 578 arcmin within 1.5 of the Pleiades' center -- reaching a completeness magnitude I=19.5 -- with the aim of fin…