L-type ultra-cool dwarfs are known to have a dusty atmosphere. Surface heterogeneities, due to cloud patterns or rotationally-induced oblateness, would result...
Linear quadratic Gaussian predictive control for the Gran Telescopio Canarias AO system: design issues and first bench results
The Gran Telescopio Canarias (GTC) will be soon equipped with an Adaptive Optics (AO) system. The GTCAO system is currently at the Instituto de Astrofisica de...
Estimates of the spectral linewidths of low degree (Q=0 and Q=1) 5 min p-modes obtained from Doppler shift observations in 1984, 1986, and 1987 are reported...
Linking stellar populations and kinematics in nuclear discs of nearby galaxies of the MUSE TIMER project
We use IFS data of four galaxies from the TIMER survey to explore the kinematics measured in different spectral regions that are sensitive to distinct stellar...
Links Between the Dynamical Evolution and the Surface Color of the Centaurs
We find remarkable differences when we compare the fraction of objects that penetrate below these typical heliocentric distances for the Red and the Gray group...
Liquid crystal optical retarders for IMaX to fly with SUNRISE
The Instituto de Astrofísica de Canarias (IAC), Spain, together with the Spanish company Tecdis Displays Ibérica, S.A., are developing voltage tunable optical...