activity
20202026
most citedAn unusually low density ultra-short period super-Earth and three mini-Neptunes around the old star TOI-561

60 citations · 177 across the 35 of their papers we have counts for

collaborators
Showing 2026Show all

13 papers · 1 filter

astro-ph.EP2026

The GAPS Programme at TNG. LXXX. Characterisation of the 400 Myr old multi-planet system K2-233

V. Fardella, S. Benatti, R. Spinelli +27

Understanding exoplanet physical properties is crucial for characterising their atmospheres and internal composition. Precise planetary masses are essential for constraining bulk d…

astro-ph.EP2026

The GAPS programme at TNG LXXIX. New mass constraints for the infant planets in the V1298 Tau system through a long-term radial velocity monitoring with HARPS-N

M. Damasso, P. Leonardi, L. Borsato +26

We aim to constrain the dynamical masses of the four confirmed transiting planets orbiting the infant ( Myr) star V1298,Tau (orbital periods 24.1 d, 8.2…

astro-ph.EP2026

The GAPS programme at TNG: LXXVI. TOI-1533: a compact system hosting a super-Neptune-mass pair with disparate radii

G. Mantovan, V. Nascimbeni, S. Desidera +49

The present-day architecture of planetary systems contains information about their formation and migration histories. The origin of hot Jupiters (HJs, P 10 d, $R_{\rm p}…

astro-ph.EP2026

The GAPS Programme with HARPS-N at TNG LXXVII. Occurrence rates of small close-in planets in the presence of cold Jupiters

A. Ruggieri, S. Desidera, M. Pinamonti +18

Context. The architecture of our Solar System, with inner small planets (ISPs) and outer giants, may or may not be common. Understanding whether a correlation exists between ISPs a…

astro-ph.EP2026

The GAPS programme at TNG LXXV. Validating and confirming Gaia substellar astrometric candidates with HARPS-N

D. Barbato, M. Pinamonti, A. Sozzetti +22

The astrometric measurements provided by the Gaia space mission represent a key advancement in the search and characterization of exoplanets, helping in particular to solve the mas…

astro-ph.EP2026

The 35-Myr old infant planet TOI-837 b has a mildly misaligned orbit

G. Mantovan, L. Malavolta, F. Marzari +6

The measurement of the spin-orbit obliquity, that is, the angle between the orbital axis of a planet and the stellar spin axis, provides crucial insights into how planets form and…

astro-ph.EP2026

The SPHERE infrared survey for exoplanets (SHINE) V. Full sample characterization

V. Squicciarini, S. Desidera, G. Chauvin +109

Unbiased surveys of large stellar samples are the prime means through which the prevalence of exoplanets can be derived, and crucial constraints to planet formation models can be s…

astro-ph.EP2026

The PLATO field selection process III. Selection of the Prime Sample for the LOPS2 field

V. Nascimbeni, G. Piotto, V. Granata +30

The PLanetary Transits and Oscillations of stars (PLATO) mission will begin its four-year nominal mission in early 2027 by monitoring its Long-duration Observation Phase field at S…

astro-ph.EP2026

TOI-159 b: an eccentric hot-Jupiter planet around a young, pulsating Doradus star

G. Mantovan, A. Llancaqueo Albornoz, A. Psaridi +16

Fast-rotating hot stars are challenging targets for exoplanet searches due to rotational broadening and stellar variability. Moreover, hot stars often exhibit pulsations, an additi…

astro-ph.EP2026★ 2 cited

A tidally detached super Neptune on a strongly misaligned retrograde orbit

G. Mantovan, L. Malavolta, A. F. Lanza +18

The obliquity between a planet's orbital axis and its host star's spin axis provides crucial insights into planetary formation and migration. Planets with scaled semi-major axes ($…

astro-ph.EP2026★ 1 cited

The multi-planet system TOI-5624: Four transiting sub-Neptunes with an outer companion revealed by transit-timing variations

A. Bonfanti, D. Gandolfi, P. Leonardi +96

Following the 2022 alert of a TESS object of interest transiting TOI-5624 (a G7 V star 100 pc away), a CHEOPS campaign in 2023 detected four planetary signals at $P_b\approx3…

astro-ph.EP2026

The GAPS Programme at TNG. LXXIII. Confirmation of the hot sub-Neptune TOI-4602 b (HD 25295 b), a key target for future atmospheric characterization

C. Di Maio, S. Benatti, D. Locci +25

Precise mass and radius measurements of small, transitional exoplanets, such as super-Earths and sub-Neptunes, are essential to constrain their bulk density and formation history,…

astro-ph.EP2026★ 2 cited

The GAPS programme at TNG LXX. HD 128717 B/Gaia-6 B: a long-period eccentric low-mass brown dwarf from astrometry and radial velocities

M. Pinamonti, A. Sozzetti, D. Barbato +24

The transition regime between giant planets (GPs) and brown dwarfs (BDs) is still an open subject of study in exoplanetary science. A complete understanding of the population of lo…