150 citations · 509 across the 22 of their papers we have counts for
8 papers · 1 filter
K2-99 revisited: a non-inflated warm Jupiter, and a temperate giant planet on a 522-d orbit around a subgiant
A. M. S. Smith, S. N. Breton, Sz. Csizmadia +29
We report new photometric and spectroscopic observations of the K2-99 planetary system. Asteroseismic analysis of the short-cadence light curve from K2's Campaign 17 allows us to r…
No swan song for Sun-as-a-star helioseismology: performances of the Solar-SONG prototype for individual mode characterisation
S. N. Breton, P. L. Pallé, R. A. García +5
The GOLF instrument on board SoHO has been in operation for almost 25 years but aging of the instrument has now strongly affected its performance, especially in the low-frequency p…
Detections of solar-like oscillations in dwarfs and subgiants with Kepler DR25 short-cadence data
S. Mathur, R. A. García, S. N. Breton +6
During the survey phase of the Kepler mission, several thousands of stars were observed in short cadence, allowing the detection of solar-like oscillations in more than 500 main-se…
Surface rotation and photometric activity for Kepler targets. II. G and F main-sequence stars, and cool subgiant stars
A. R. G. Santos, S. N. Breton, S. Mathur +1
Dark magnetic spots crossing the stellar disc lead to quasi-periodic brightness variations, which allow us to constrain stellar surface rotation and photometric activity. The curre…
A 20-Second Cadence View of Solar-Type Stars and Their Planets with TESS: Asteroseismology of Solar Analogs and a Re-characterization of pi Men c
Daniel Huber, Timothy R. White, Travis S. Metcalfe +50
We present an analysis of the first 20-second cadence light curves obtained by the TESS space telescope during its extended mission. We find a precision improvement of 20-second da…
Asteroseismology of iota Draconis and Discovery of an Additional Long-Period Companion
Michelle L. Hill, Stephen R. Kane, Tiago L. Campante +25
Giant stars as known exoplanet hosts are relatively rare due to the potential challenges in acquiring precision radial velocities and the small predicted transit depths. However, t…
A calibration of the Rossby number from asteroseismology
E. Corsaro, A. Bonanno, S. Mathur +4
Stellar activity and rotation are tightly related in a dynamo process. Our understanding of this mechanism is mainly limited by our capability of inferring the properties of stella…
ROOSTER: a machine-learning analysis tool for Kepler stellar rotation periods
Sylvain N. Breton, Angela R. G. Santos, Lisa Bugnet +3
In order to understand stellar evolution, it is crucial to efficiently determine stellar surface rotation periods. An efficient tool to automatically determine reliable rotation pe…