activity
20142026
most citedThree years of Sun-as-a-star radial-velocity observations on the approach to solar minimum

149 citations · 414 across the 14 of their papers we have counts for

collaborators

14 papers

astro-ph.EP2026

A decade of monitoring the HIP 41378's planetary system

S. Grouffal, A. Santerne, X. Dumusque +32

Multi-planetary systems provide key constraints on planet formation and evolution, as their architecture encodes the dynamical history of planets formed within a common protoplanet…

astro-ph.EP2025

Searching for Exoplanets Born Outside the Milky Way: VOYAGERS Survey Design

Robert Aloisi, Andrew Vanderburg, Melinda Soares-Furtado +44

Observations over the past few decades have found that planets are common around nearby stars in our Galaxy, but little is known about planets that formed outside the Milky Way. We…

astro-ph.EP2024★ 9 cited

The GAPS Programme at TNG. XXX: Characterization of the low-density gas giant HAT-P-67 b with GIARPS

D. Sicilia, G. Scandariato, G. Guilluy +28

HAT-P-67 b is one of the lowest-density gas giants known to date, making it an excellent target for atmospheric characterization through the transmission spectroscopy technique. In…

astro-ph.EP2023

Masses, Revised Radii, and a Third Planet Candidate in the "Inverted" Planetary System Around TOI-1266

Ryan Cloutier, Michael Greklek-McKeon, Serena Wurmser +40

Is the population of close-in planets orbiting M dwarfs sculpted by thermally driven escape or is it a direct outcome of the planet formation process? A number of recent empirical…

astro-ph.EP2023

HD152843 b & c: the masses and orbital periods of a sub-Neptune and a super-puff Neptune

B. A. Nicholson, S. Aigrain, N. L. Eisner +24

We present the characterisation of the two transiting planets around HD 152843 (TOI 2319, TIC 349488688) using an intensive campaign of HARPS-N radial velocities, and two sectors o…

astro-ph.EP2022★ 18 cited

The GAPS Programme at TNG: XXXVI. Measurement of the Rossiter-McLaughlin effect and revising the physical and orbital parameters of the HAT-P-15, HAT-P-17, HAT-P-21, HAT-P-26, HAT-P-29 eccentric planetary systems

L. Mancini, M. Esposito, E. Covino +34

Aim: We aim to refine the orbital and physical parameters and determine the sky-projected planet orbital obliquity of five eccentric transiting planetary systems: HAT-P-15, HAT-P-1…

astro-ph.EP2020★ 46 cited

K2-111: an old system with two planets in near-resonance

A. Mortier, M. R. Zapatero Osorio, L. Malavolta +64

This paper reports on the detailed characterisation of the K2-111 planetary system with K2, WASP, and ASAS-SN photometry as well as high-resolution spectroscopic data from HARPS-N…

astro-ph.EP2020★ 60 cited

An unusually low density ultra-short period super-Earth and three mini-Neptunes around the old star TOI-561

G. Lacedelli, L. Malavolta, L. Borsato +38

Based on HARPS-N radial velocities (RVs) and TESS photometry, we present a full characterisation of the planetary system orbiting the late G dwarf TOI-561. After the identification…

astro-ph.SR2020★ 24 cited

The spectral impact of magnetic activity on disk-integrated HARPS-N solar observations: exploring new activity indicators

A. P. G. Thompson, C. A. Watson, R. D. Haywood +21

Stellar activity is the major roadblock on the path to finding true Earth-analogue planets with the Doppler technique. Thus, identifying new indicators that better trace magnetic a…

astro-ph.SR2019★ 149 cited

Three years of Sun-as-a-star radial-velocity observations on the approach to solar minimum

A. Collier Cameron, A. Mortier, D. Phillips +33

The time-variable velocity fields of solar-type stars limit the precision of radial-velocity determinations of their planets' masses, obstructing detection of Earth twins. Since 20…

astro-ph.EP2019★ 17 cited

So close, so different: characterization of the K2-36 planetary system with HARPS-N

M. Damasso, L. Zeng, L. Malavolta +19

K2-36 is a K dwarf orbited by two small ( and ), close-in (=0.022 AU and =0.054 AU) transiti…

astro-ph.EP2019★ 50 cited

Masses and radii for the three super-Earths orbiting GJ 9827, and implications for the composition of small exoplanets

K. Rice, L. Malavolta, A. Mayo +34

Super-Earths belong to a class of planet not found in the Solar System, but which appear common in the Galaxy. Given that some super-Earths are rocky, while others retain substanti…

astro-ph.EP2018★ 16 cited

K2-263b: A 50-day period sub-Neptune with a mass measurement using HARPS-N

A. Mortier, A. S. Bonomo, V. M. Rajpaul +32

This paper reports on the validation and mass measurement of K2-263b, a sub-Neptune orbiting a quiet G9V star. Using K2 data from campaigns C5 and C16, we find this planet to have…

astro-ph.EP2014★ 25 cited

Characterization of the Kepler-101 planetary system with HARPS-N. A hot super-Neptune with an Earth-sized low-mass companion

A. S. Bonomo, A. Sozzetti, C. Lovis +32

We report on the characterization of the Kepler-101 planetary system, thanks to a combined DE-MCMC analysis of Kepler data and forty radial velocities obtained with the HARPS-N spe…