We present a comprehensive analysis of the Hubble Space Telescope observations of the atmosphere of WASP-121 b, an ultra-hot Jupiter. After reducing the transit, eclipse, and phase-curve observations with a uniform methodology and addressing the biases from instrument systematics, sophisticated atmospheric retrievals are used to extract robust

El crecimiento de las galaxias masivas está estrictamente relacionado con la acreción de materia en su centro, donde residen los Agujeros Negros Supermasivos (SMBH). Los Núcleos Activos de Galaxias (AGN) exhiben caminos evolutivos in- terdependientes con sus galaxias anfitrionas a través de un intercambio continuo de energía y materia mediante

Hasta ahora, la única formar de monitorizar de manera consistente el hemisferio del Sol no visible (farside de aquí en adelante) desde la Tierra es el uso de métodos heliosísmicos. Estos métodos interpretan las oscilaciones del hemisferio visible (nearside de aquí en adelante) para inferir la actividad del farside, que es de gran importancia en las

Fullerenes have been observed in several astronomical objects since the discovery of C 60 in the mid-infrared (mid-IR) spectrum of the planetary nebula (PN) Tc 1. It has been suggested that the carriers of the broad unidentified infrared (UIR) plateau features, such as the 9-13 μm emission feature (12 μm hereafter), may be related to the formation

The mergers of binary compact objects such as neutron stars and black holes are of central interest to several areas of astrophysics, including as the progenitors of gamma-ray bursts (GRBs) 1, sources of high-frequency gravitational waves (GWs) 2 and likely production sites for heavy-element nucleosynthesis by means of rapid neutron capture (the r

Detections of transiting planets from the upcoming PLATO mission are expected to face significant contamination from contaminating eclipsing binaries, resulting in false positives. To counter this, a ground-based programme to acquire time-critical photometry is pursued. Its principal aim is to obtain time-series observations of the planet candidate