GJ 3090 b: one of the most favourable mini-Neptune for atmospheric characterisation
We report the detection of GJ 3090 b (TOI-177.01), a mini-Neptune on a 2.9-day orbit transiting a bright (K = 7.3 mag) M2 dwarf located at 22 pc. The planet was...
GLACE survey: OSIRIS/GTC multi-object spectroscopy of the rich galaxy cluster ZwCl 0024.0+1652 at z∼0.4: III. The mass–SFR relation and the quenching of cluster galaxies
Context. Galaxy clusters are among the largest and densest structures in the Universe. Their high density generally increases the suppression of star formation...
Glancing through the debris disk: Photometric analysis of DE Boo with CHEOPS
Aims: DE Boo is a unique system, with an edge-on view through the debris disk around the star. The disk, which is analogous to the Kuiper belt in the Solar...
Glancing Views of the Earth: From a Lunar Eclipse to an Exoplanetary Transit
It has been posited that lunar eclipse observations may help predict the in-transit signature of Earth-like extrasolar planets. However, a comparative analysis...
Gliese 49: activity evolution and detection of a super-Earth. A HADES and CARMENES collaboration
Context. Small planets around low-mass stars often show orbital periods in a range that corresponds to the temperate zones of their host stars which are...
Global analysis of the TRAPPIST Ultra-Cool Dwarf Transit Survey
We conducted a global analysis of the TRAPPIST Ultra-Cool Dwarf Transit Survey - a prototype of the SPECULOOS transit search conducted with the TRAPPIST-South...
Context. The Hayabusa2 spacecraft launched by Japan Aerospace Exploration Agency has been conducting observations of the asteroid (162173) Ryugu since June 2018...
Going back to basics: accelerating exoplanet transit modelling using Taylor-series expansion of the orbital motion
A significant fraction of an exoplanet transit model evaluation time is spent calculating projected distances between the planet and its host star. This is a...