activity
20192025
most citedThe SOPHIE search for northern extrasolar planets. XVI. HD 158259: A compact planetary system in a near-3:2 mean motion resonance chain

51 citations · 187 across the 18 of their papers we have counts for

collaborators
Showing 2025Show all

7 papers · 1 filter

astro-ph.EP2025

ExoClock Project IV: A homogeneous catalogue of 620 updated exoplanet ephemerides

A. Kokori, A. Tsiaras, G. Pantelidou +323

The ExoClock project is an open platform aiming to monitor exoplanets by integrating observations from space and ground based telescopes. This study presents an updated catalogue o…

astro-ph.EP2025★ 3 cited

TOI-2322: two transiting rocky planets close to the stellar rotation period and its first harmonic

M. J. Hobson, A. Suárez Mascareño, C. Lovis +42

Context. Active regions on the stellar surface can induce quasi-periodic radial velocity (RV) variations that can mimic planets and mask true planetary signals. These spurious sign…

astro-ph.EP2025★ 9 cited

A systematic bias in template-based RV extraction algorithms

André M. Silva, N. C. Santos, J. P. Faria +30

In this paper we identify and explore a previously unidentified, multi meter-per-second, systematic correlation between time and RVs inferred through TM and LBL methods. We evaluat…

astro-ph.EP2025★ 4 cited

The ESPRESSO transmission spectrum of HD189733b : Extracting the planetary sodium and lithium signatures amid stellar contamination

D. Mounzer, W. Dethier, C. Lovis +20

While transmission spectroscopy has allowed us to detect many atomic and molecular species in exoplanet atmospheres, the improvement in resolution and signal-to-noise ratio enabled…

astro-ph.EP2025

Exploring the Neptunian Desert: Insights from a Homogeneous Planetary Sample

Lauren Doyle, David J. Armstrong, Lorena Acuña +26

In this paper, we present a homogeneous analysis of close-in Neptune planets. To do this, we compile a sample of TESS-observed planets using a ranking criterion which takes into ac…

astro-ph.EP2025★ 6 cited

Two neighbours of the ultra-short-period Earth-sized planet K2-157 b in the warm Neptunian savanna

A. Castro-González, F. Bouchy, A. C. M. Correia +30

The formation and evolution of ultra-short-period (USP) planets is poorly understood. However, it is widely thought that these planets migrated inwards through interactions with ou…

astro-ph.EP2025

TOI-512: Super-Earth transiting a K-type star discovered by TESS and ESPRESSO

J. Rodrigues, S. C. Barros, N. C. Santos +38

One of the goals of the ESPRESSO guaranteed time observations (GTOs) at the ESO 8.2m telescope is to follow up on candidate planets from transit surveys such as the TESS mission. H…