activity
20172026
most citedA Kepler Study of Starspot Lifetimes with Respect to Light Curve Amplitude and Spectral Type

164 citations · 582 across the 18 of their papers we have counts for

collaborators

30 papers

astro-ph.EP2026

Gas-depleted planet formation occurred in the four-planet system around the red dwarf LHS 1903

Thomas G. Wilson, Anna M. Simpson, Andrew Collier Cameron +173

Small exoplanet radii show two populations, referred to as super-Earths and sub-Neptunes, separated by a gap known as the radius valley. This may be produced by the removal of atmo…

astro-ph.EP20242 cited

Confronting compositional confusion through the characterisation of the sub-Neptune orbiting HD 77946

L. Palethorpe, A. Anna John, A. Mortier +29

We report on the detailed characterization of the HD 77946 planetary system. HD 77946 is an F5 ( = 1.17 M, = 1.31 R) star, which hosts a transiting p…

astro-ph.SR2023

The magnetically quiet solar surface dominates HARPS-N solar RVs during low activity

Ben S. Lakeland, Tim Naylor, Raphaëlle Haywood +15

Using images from the Helioseismic and Magnetic Imager aboard the \textit{Solar Dynamics Observatory} (SDO/HMI), we extract the radial-velocity (RV) signal arising from the suppres…

astro-ph.SR2022

Leveraging space-based data from the nearest Solar-type star to better understand stellar activity signatures in radial velocity data

Tamar Ervin, Samuel Halverson, Abigail Burrows +8

Stellar variability is a key obstacle in reaching the sensitivity required to recover Earth-like exoplanetary signals using the radial velocity (RV) detection method. To explore ac…

astro-ph.EP202242 cited

Investigating the architecture and internal structure of the TOI-561 system planets with CHEOPS, HARPS-N and TESS

G. Lacedelli, T. G. Wilson, L. Malavolta +115

We present a precise characterization of the TOI-561 planetary system obtained by combining previously published data with TESS and CHEOPS photometry, and a new set of HARPS-N…

astro-ph.SR20213 cited

Radial velocity precision of ESPRESSO through the analysis of the solar twin HIP 11915

Yuri Netto, Diego Lorenzo-Oliveira, Jorge Meléndez +4

Different stellar phenomena affect radial velocities (RVs), causing variations large enough to make it difficult to identify planet signals from the stellar variability. RV variati…