activity
20112024
most citedA Gaussian process framework for modelling stellar activity signals in radial velocity data

412 citations · 1.7k across the 28 of their papers we have counts for

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18 papers · 1 filter

astro-ph.EP2022★ 46 cited

The GAPS Programme with HARPS-N at TNG. XXXVII. A precise density measurement of the young ultra-short period planet TOI-1807 b

D. Nardiello, L. Malavolta, S. Desidera +38

Great strides have been made in recent years in the understanding of the mechanisms involved in the formation and evolution of planetary systems; despite this, many observational f…

astro-ph.EP2022★ 52 cited

One year of AU Mic with HARPS: I -- measuring the masses of the two transiting planets

Norbert Zicher, Oscar Barragán, Baptiste Klein +11

The system of two transiting Neptune-sized planets around the bright, young M-dwarf AU Mic provides a unique opportunity to test models of planet formation, early evolution, and st…

astro-ph.EP2021★ 100 cited

pyaneti II: A multidimensional Gaussian process approach to analysing spectroscopic time-series

Oscar Barragán, Suzanne Aigrain, Vinesh M. Rajpaul +1

The two most successful methods for exoplanet detection rely on the detection of planetary signals in photometric and radial velocity time-series. This depends on numerical techniq…

astro-ph.EP2021★ 27 cited

A HARPS-N mass for the elusive Kepler-37d: a case study in disentangling stellar activity and planetary signals

V. M. Rajpaul, L. A. Buchhave, G. Lacedelli +22

To date, only 18 exoplanets with radial velocity (RV) semi-amplitudes m/s have had their masses directly constrained. The biggest obstacle to RV detection of such exoplanets i…

astro-ph.EP2021★ 11 cited

Planet Hunters TESS III: two transiting planets around the bright G dwarf HD 152843

Nora L. Eisner, Belinda A. Nicholson, Oscar Barragán +37

We report on the discovery and validation of a two-planet system around a bright (V = 8.85 mag) early G dwarf (1.43 , 1.15 , TOI 2319) using data from NASA's…

astro-ph.EP2021★ 28 cited

The HARPS search for southern extra-solar planets XLV. Two Neptune mass planets orbiting HD 13808: a study of stellar activity modelling's impact on planet detection

E. Ahrer, D. Queloz, V. M. Rajpaul +11

We present a comprehensive analysis of 10 years of HARPS radial velocities of the K2V dwarf star HD 13808, which has previously been reported to host two unconfirmed planet candida…