On the magnetic nature of quiet-Sun chromospheric grains
CaII Kgrains, i.e., intermittent, short-lived (about 1 minute), periodic (2-4 minutes), pointlike chromospheric brightenings, are considered to be the...
On the origin of stars with and without planets. Tc trends and clues to Galactic evolution.
We explore a sample of 148 solar-like stars to search for a possible correlation between the slopes of the abundance trends versus condensation temperature...
On the Probable Existence of an Abrupt Magnetization in the Upper Chromosphere of the Quiet Sun.
A long-standing issue in solar astrophysics concerns the strength and structure variations with height of the magnetic field in the chromosphere of the quiet...
Optical Photometric GTC/OSIRIS Observations of the Young Massive Association Cygnus OB2.
In order to fully understand the gravitational collapse of molecular clouds, the star formation process, and the evolution of circumstellar disks, these...
Orbital and Physical Properties of the sigma Ori Aa, Ab, B Triple System.
We provide a complete characterization of the astrophysical properties of the σ Ori Aa, Ab, B hierarchical triple system and an improved set of orbital...
Origin of stellar prolate rotation in a cosmologically simulated faint dwarf
In the current cosmological model, galaxies are formed in a hierarchical way, by merging with each other. These mergers can lead to kinematic anomalies that can...
El telescopio MAGIC detecta la emisión de rayos gamma de mayor energía conocida hasta la fecha en el púlsar del Cangrejo. El telescopio de rayos gamma MAGIC ha...
Se descubren en el espacio interestelar moléculas clave para la formación de estructuras básicas de la vida. Se ha logrado identificar una de las moléculas de...