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astro-ph2005
NAHUAL: A cool spectrograph for planets of ultra-cool objects
E. W. Guenther, E. L. Martin, D. Barrado y Navascues +1
We present the status of an ongoing study to built a a high resolution near infrared Echelle spectrograph (NAHUAL) for the 10.4-m-Gran Telescopio Canarias (GTC) which will be espec…
astro-ph2005
Direct detection of exo-planets: GQ Lupi
Ralph Neuhaeuser, Eike Guenther, Peter Hauschildt
We present a comparison of our VLT/NACO K-band spectrum of the GQ Lupi companion with the new GAIA-dusty model atmosphere grid for T=2000 and 2900 K and log g from 0 to 4. Then, we…