We have performed a search for substellar objects as common proper motion companions to young nearby stars (including members of the Young Moving Groups AB Doradus, TW Hydrae, Tucana-Horologium and Beta Pictoris, and the Upper Scorpius young association) up to separations of 50,000 AU, using the VISTA Hemisphere Survey and 2MASS astrometric and

EMIR, the near-infrared camera and multi-object spectrograph operating in the spectral region from 0.9 to 2.5 μm, has been commissioned at the Nasmyth focus of the Gran Telescopio CANARIAS. One of the most outstanding capabilities of EMIR is its multi-object spectroscopic mode which, with the help of a robotic reconfigurable slit system, allows to

Establishing the abundance and physical properties of regolith and boulders on asteroids is crucial for understanding the formation and degradation mechanisms at work on their surfaces. Using images and thermal data from NASA's Origins, Spectral Interpretation, Resource Identification, and Security-Regolith Explorer (OSIRIS-REx) spacecraft, we show

Results on theoretical work, astronomical observations and laboratory measurements of the new form of carbon known as fullerenes and their hydrogenated forms (fulleranes) are reviewed. These molecules can be responsible for diffuse interstellar bands, for the UV bump, a prominent feature in the extinction curves observed in many lines of sight of

δ Sct are one of the most abundant pulsating stars in our Galaxy. In addition, they have moderate to fast rotations and periods of several hours. That makes them the suitable targets for studying the effects of rotation on stellar evolution. In this work, we show how to infer the mean density and the surface gravity of an A-type pulsanting star

LoTr 5 is a planetary nebula with an unusual long-period binary central star. The pair consists of a rapidly rotating G-type star and a hot star, which is responsible for the ionization of the nebula. Both components are in a wide orbit with a period of about 2700 days, one of the longest in central star of planetary nebulae. In this contribution