Astrochemical models are important tools to interpret observations of molecular and atomic species in different environments. However, these models are time...
Astrochemical models are important tools to interpret observations of molecular and atomic species in different environments. However, these models are time...
A fast version of the k-means classification algorithm for astronomical applications
Context. K-means is a clustering algorithm that has been used to classify large datasets in astronomical databases. It is an unsupervised method, able to cope...
A fast, very-high-energy γ-ray flare from BL Lacertae during a period of multi-wavelength activity in June 2015
The mechanisms producing fast variability of the γ-ray emission in active galactic nuclei (AGNs) are under debate. The MAGIC telescopes detected a fast, very...
A feasibility study on the photometric detection of quiescent black hole X-ray binaries
We investigate the feasibility of detecting quiescent black hole X-ray binaries using optical photometric techniques. To test this, we employ a combination of r...
A feather on the hat: tracing the giant stellar stream around the Sombrero galaxy
Recent evidence of extremely metal-rich stars found in the Sombrero galaxy (M104) halo suggests that this galaxy has undergone a recent major merger with a...
A few StePS forward in unveiling the complexity of galaxy evolution: light-weighted stellar ages of intermediate-redshift galaxies with WEAVE
Context. The upcoming new generation of optical spectrographs on four-meter-class telescopes, with their huge multiplexing capabilities, excellent spectral...
A first catalogue of automatically selected ultraviolet-excess sources from the UVEX survey
We present the first catalogue of point-source ultraviolet (UV)-excess sources selected from the UV-Excess Survey of the Northern Galactic Plane (UVEX). UVEX...