One of the best tracers of massive stars is the rate of supernovae in galaxies. Studies of the supernova rate in galaxies are though severely affected by the...
Measuring vector magnetic fields in solar prominences
We present spectropolarimetric observations in the He I 1083.0 nm multiplet of a quiescent, hedgerow solar prominence. The data were taken with the Tenerife...
Mechanical design of ELMER instrument for GTC telescope
ELMER is an optical instrument for the GTC designed to observe between 370 and 1000 nm. The observing modes for the instrument at Day One shall be: imaging...
Mechanics of LIRIS (long-slit intermediate-resolution infrared spectrograph) at first commissioning
LIRIS is a near-infrared intermediate resolution spectrograph with added capabilities for multi-slit, imaging, coronography, and polarimetry, developed by the...
Medium-term Variability in Emission from the Orion Nebula
Measuring the surface brightness changes in HST images in Hα and [O III]5007 Å taken with a time interval of 6.84 yr, we show how to detect separately the...
MEGARA (Multi-Espectrógrafo en GTC de Alta Resolución para Astronomía) is the future intermediate-resolution optical Integral-Field Unit (IFU) and Multi-Object...
MEGARA, the new intermediate-resolution optical IFU and MOS for GTC: getting ready for the telescope
MEGARA (Multi-Espectrógrafo en GTC de Alta Resolución para Astronomía) is an optical Integral-Field Unit (IFU) and Multi-Object Spectrograph (MOS) designed for...
MEGARA, the Next Generation Optical MOS and IFU for GTC
MEGARA (Multi-Espectrógrafo en GTC de Alta Resolución para Astronomía) is the new optical spectrograph for the 10.4 m Gran Telescopio CANARIAS (GTC). Once...