activity
20092025
most citedChemical abundances of 1111 FGK stars from the HARPS GTO planet search program.Galactic stellar populations and planets

585 citations · 4.3k across the 74 of their papers we have counts for

collaborators

75 papers

astro-ph.EP2025

The TOI-1117 Multi-planetary System: 3 sub-Neptunes, 1 in both the Neptunian Desert and Radius Valley

Isobel S. Lockley, David J. Armstrong, Jorge Fernández Fernández +33

We present the discovery of three sub-Neptune planets around TOI-1117, a Sun-like star with mass , radius , age Gyr and ef…

astro-ph.EP2025

The NCORES Program: Precise planetary masses, null results, and insight into the planet mass distribution near the radius gap

David J. Armstrong, Ares Osborn, Remo Burn +39

NCORES was a large observing program on the ESO HARPS spectrograph, dedicated to measuring the masses of Neptune-like and smaller transiting planets discovered by the TESS satellit…

astro-ph.EP2025★ 6 cited

KOBE-1: The first planetary system from the KOBE survey. Two planets likely residing in the sub-Neptune mass regime around a late K-dwarf

O. Balsalobre-Ruza, J. Lillo-Box, A. M. Silva +35

K-dwarf stars are promising targets in the exploration of potentially habitable planets. Their properties, falling between G and M dwarfs, provide an optimal trade-off between the…

astro-ph.SR2024★ 11 cited

Ariel stellar characterisation II. Chemical abundances of carbon, nitrogen, and oxygen for 181 planet-host FGK dwarf stars

R. da Silva, C. Danielski, E. Delgado Mena +12

One of the ultimate goals of the ESA Ariel space mission is to shed light on the formation pathways and evolution of planetary systems in the Solar neighbourhood. Such an endeavour…

astro-ph.SR2024★ 7 cited

The enigma of Li-rich giants and its relation with temporal variations observed in radial velocity and stellar activity signals

Inês Rolo, Elisa Delgado Mena, Maria Tsantaki +1

Despite the large number of studies focused on the characterisation of Li-rich stars and understanding the mechanisms leading to such enrichment, their origin remains a mystery. Ma…

astro-ph.EP2024★ 4 cited

A low-mass sub-Neptune planet transiting the bright active star HD 73344

S. Sulis, I. J. M. Crossfield, A. Santerne +33

Context. Planets with radii of between 2-4 RE closely orbiting solar-type stars are of significant importance for studying the transition from rocky to giant planets. Aims. Our goa…