Recent large-scale transit surveys conducted by space telescopes such as Kepler and TESS have revealed a vast number of exoplanets, uncovering the diversity of their population. One of the remarkable findings is the presence of a deficiency region in the period─radius distribution of short-period (<10 d) Neptune-sized planets (4─8 $R_\oplus$). This

We present a detailed X-ray spectral analysis of the active galactic nucleus (AGN) population in the Lockman-SpReSO project, a multiwavelength campaign of FIR sources in the Lockman Hole field. Using deep XMM-Newton observations cross-matched with FIR-selected galaxies, we characterize 94 AGNs based on their X-ray spectral properties. The sample is

Context. Several author have studied the giant radio source GRS0917 + 75, but its origin remains unclear. Aims. This source is unusual, because of its large size and its location outside a rich cluster of galaxies. We aim to understand and discuss the properties and nature of this source and its connection to the environment. Methods. We conducted

Context. The gas-phase mass─metallicity relation (MZR) of galaxies shows a noticeable break in slope and an increased scatter at low stellar masses, suggesting that the physical processes governing chemical enrichment differ between dwarf and high-mass systems. Dwarf galaxies, in particular, are highly susceptible to both internal and environmental

Context. The astrometric measurements provided by the Gaia space mission represent a key advancement in the search for and characterisation of exoplanets, helping in particular to solve the mass degeneracy intrinsic to the radial velocity (RV) method. The fact that a fraction of astrophysical false positives contaminates the current catalogue of

Context. JWST has revealed galaxies at z > 10 with extremely blue UV-continuum slopes approaching β UV ≲ -2.4, and low inferred dust content. At similar redshifts, JWST and ALMA reveal dusty massive systems reaching β UV ≳ -1. Aims. We explain blue monsters and red monsters at z ≳ 10 as different outcomes of supernova dust retention in clustered