activity
20062026
most citedRevisiting Proxima with ESPRESSO

118 citations · 594 across the 28 of their papers we have counts for

collaborators

29 papers

astro-ph.IM2026

Feasibility of up-the-ramp sampling under variable sky for ground-based spectrographs

Gaia Gaspar, Marcin Sawicki, Nelson Nunes +2

Many modern near-infrared instruments employ HAWAII-2RG (H2RG) detectors with integration times that can reach 300-600s. Up-the-ramp (UTR) sampling offers advantages over Fowler sa…

astro-ph.EP2026

The small transiting planet population revealed by ESPRESSO with extreme precision radial velocities

M. J. Hobson, B. Lavie, F. Bouchy +35

Small planets are extremely common in the Galaxy, including planets with masses and radii between those of Earth and Neptune. Characterizing these planets' masses requires ultra-pr…

astro-ph.CO2026

The ESPRESSO Redshift Drift Experiment III -- The Third Epoch of QSO J052915.80-435152.0

Andrea Trost, Catarina M. J. Marques, S. Cristiani +25

The Sandage-Loeb test probes cosmic expansion directly by measuring the redshift drift in quasar absorption features in a model-independent way. In this series of papers, we have l…

astro-ph.SR2025★ 4 cited

Unveiling the nature of HE 0107-5240

E. Caffau, M. Steffen, P. Molaro +27

The vast majority of the most iron-poor stars in the Galaxy exhibit a strong carbon enhancement, with C/H ratios only about two orders of magnitude below solar. This unusual chemic…

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…