Extinction over the Canarian observatories: the limited influence of Saharan dust
We present a study of the atmospheric extinction over the observatories of the Canary Islands, based mainly on photometric measurements of the V-band extinction...
Extracting rotation rates on 27-d TESS-like light curves downgrading Kepler data
Evolution of surface magnetic features in the star, such as stellar spots or faculae, can leave a signature in the lightcurves. These features allow us to study...
Extragalactic Radio Astronomy from an Armchair: Continuum Spectral Shapes of 150 Faint Sources
We have used all available radio-source surveys to construct the continuum spectra for sources in an area of 5 by 10 degrees near the North Ecliptic Pole (NEP)...
EMIR is a wide-field, near-IR spectrograph currently under development for the Nasmyth focus of the Spanish 10.4m GTC at Canary Islands. EMIR will provide...
The advent of large 8-10m telescopes heralds a new age in stellar astronomy. It is now possible to carry out detailed spectroscopic observations at high...
Extrasolar Giant Planets in the Sigma Orionis Open Cluster: a Progress Report
We report on our ongoing efforts to probe for extrasolar giant planets in the Sigma Orionis open cluster. With an age of about 3 Myr, a distance of about 440 pc...