Detection of objects with masses close to that of Jupiter in various astrophysical contexts will be feasible with GTC first light instruments. The mid-infrared camera, CANARICAM, will contribute to the detection and characterization of these objects orbiting around F-M stars and brown dwarfs. It will allow us to explore a domain of orbital radii

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We present Cu and Zn abundances for a sample of 30 stars spanning a metallicity range between solar and [Fe/H]=-3. LTE abundances were obtained using Kurucz model atmospheres and the near UV lines of Cu I 3273.95 and Zn I 3302.58 A observed at high spectral resolution. The trend of [Zn/Fe] vs [Fe/H] is essentially constant over the whole

We present Cu and Zn abundances for a sample of 30 stars spanning a metallicity range between solar and [Fe/H]=-3. LTE abundances were obtained using Kurucz model atmospheres and the near UV lines of Cu I 3273.95 and Zn I 3302.58 A observed at high spectral resolution. The trend of [Zn/Fe] vs [Fe/H] is essentially constant over the whole

We report our analysis of the stability of pulsation periods in the DAV star (pulsating hydrogen atmosphere white dwarf) ZZ Ceti, also called R 548. Based on observations that span 31 years, we conclude that the period 213.132605 s observed in ZZ Ceti drifts at a rate dP/dt=1.2 Gyr, comparable to the theoretical cooling timescale for the star. Our

The plans for the commissioning of the GTC are being drawn up at the GTC Project Office. The commissioning will start before first light, with the commissioning of the telescope mount and will continue until after normal science operations begin. The aim of the commissioning is to convert a series of subsystems into a single instrument that is