As part of our comprehensive, ongoing characterization of the low-mass end of the main sequence in the Solar neighbourhood, we used the OSIRIS instrument at the 10.4 m Gran Telescopio Canarias to acquire low- and mid-resolution (R ${\approx }$300 and R ${\approx }$2500) optical spectroscopy of 53 late-M and L ultracool dwarfs. Most of these objects

We present the analysis using pyPipe3D of a sample of 208 galaxies from the CAVITY project , that includes: (i) a description of the processes performed by this pipeline, (ii) the data model adopted to store the spatially resolved properties, and (iii) a catalog comprising integrated and characteristics properties, and the slope of radial gradients

While elementary particles are the favored candidate for the elusive dark matter, primordial black holes (PBHs) have also been considered to fill that role. Gravitational microlensing is a very well-suited tool to detect and measure the abundance of compact objects in galaxies. Previous studies based on quasar microlensing exclude a significant

We present the validation of two TESS super-Earth candidates transiting the mid-M dwarfs TOI-6002 and TOI-5713 every 10.90 and 10.44 days, respectively. The first star (TOI-6002) is located 32.038 ± 0.019 pc away, with a radius of 0.2409 ‑0.0065 +0.0066 R ⊙, a mass of 0.2105 ‑0.0048 +0.0049 M ⊙, and an effective temperature of 3229 ‑57 +77 K. The

Stellar binarity and stellar oscillations are mostly seen and studied as two separate phenomena. Sometimes, one process is even complicating the analysis of the other beyond the liking of one or the other research community. However, the complete picture painted by the physical constraints provided by the combination of both processes represents a

Dating the ages and weighting the stellar populations in galaxies are essential steps when studying galaxy formation through cosmic times. Evolutionary population synthesis models with different input physics are used for this purpose. Moreover, the contribution from the thermally pulsing asymptotic giant branch (TP-AGB) stellar phase, which peaks