Growing evidence in recent years suggests a systematic variation of the stellar initial mass function (IMF), being top-heavy for starburst galaxies and possibly bottom-heavy for massive ellipticals. Galaxy chemical evolution simulations adopting an invariant canonical IMF face difficulty in simultaneously reproducing the metallicity and α

The role of gas accretion in galaxy evolution is still a matter of debate. The presence of inflows of metal-poor gas that trigger star formation bursts of low metallicity has been proposed as an explanation for the local anticorrelation between star formation rate (SFR) and gas-phase metallicity (Z g ) found in the literature. In the present study

Saturn's atmosphere is characterised by a thick yellow haze that envelopes its entire surface. What causes this haze to be yellow, however, remains unknown. We argue in this talk that the yellow haze colour could be a result of two or more colour production processes.

We present preliminary results of a photometric program aimed to study the rotational properties of the population of Mars-crosser asteroids by means of CCD photometry. We use a set of small robotic telescopes located in the Teide Observatory (Tenerife, Spain) and the Isaac Aznar Observatory (Alcublas, Spain). A total of 54 Mars Crossers were

Aims: One of the main scientific drivers for ESPRESSO, Échelle SPectrograph, is the detection and characterization of Earth-class exoplanets. With this goal in mind, the ESPRESSO guaranteed time observations (GTO) Catalog identifies the best target stars for a blind search for the radial velocity (RV) signals caused by Earth-class exoplanets

We present a self-consistent Bayesian formalism to sample the primordial density fields compatible with a set of dark matter density tracers after a cosmic evolution observed in redshift space. Previous works on density reconstruction did not self-consistently consider redshift space distortions or included an additional iterative distortion