activity
20162026
most citedStarspot signature on the light curve: Learning about the latitudinal distribution of spots

39 citations · 83 across the 12 of their papers we have counts for

collaborators

13 papers

astro-ph.SR2026

Hints of enhanced magnetic activity after the intermediate rotation period gap as traced by the chromospheric Ca ii infrared triplet

Diego Godoy-Rivera, Savita Mathur, Tyler Richey-Yowell +5

For low-mass stars (M < 1.4 Msun), the connection between stellar rotation and magnetic activity governs stellar spin-down, shapes the environments of their exoplanets, and provide…

astro-ph.SR2025★ 5 cited

Influence of the magnetic activity cycle on mean density and acoustic radius inversions

Jérôme Bétrisey, Daniel R. Reese, Sylvain N. Breton +4

Asteroseismic modelling is crucial for upcoming missions like PLATO, CubeSpec, and Roman. Despite significant progress, discrepancies between observations and theoretical predictio…

astro-ph.SR2025★ 9 cited

Signature of spin-down stalling in stellar magnetic activity. The case of the open cluster NGC 6811

Ângela R. G. Santos, Diego Godoy-Rivera, Savita Mathur +3

Stellar rotation and magnetic activity have a complex evolution that reveals multiple regimes. One of the related transitions that is seen in the rotation distribution for main-seq…

astro-ph.SR2025★ 1 cited

Magnetic activity evolution of solar-like stars: II. -Ro evolution of Kepler main-sequence targets

Savita Mathur, Angela R. G. Santos, Zachary R. Claytor +16

There is now a large sample of stars observed by the Kepler satellite with measured rotation periods and photometric activity index . We use this data, in conjunction w…

astro-ph.SR2024★ 4 cited

The impact of rotation on the stochastic excitation of stellar acoustic modes in solar-like pulsators

Leïla Bessila, Adrien Deckx van Ruys, Valentin Buriasco +4

Recent observational results from asteroseismic studies show that an important fraction of solar-like stars do not present detectable stochastically excited acoustic oscillations.…

astro-ph.SR2024

Impact of uniform rotation on the stochastic excitation of acoustic modes in solar-like oscillators

Leïla Bessila, Adrien Deckx Van Ruys, Valentin Buriasco +4

We evaluate the impact of the rotation on the stochastic excitation of acoustic (p) modes in solar-like pulsators. First, we derive the forced wave equation taking rotation into ac…

astro-ph.EP2024★ 3 cited

TOI-2458 b: A mini-Neptune consistent with in situ hot Jupiter formation

Ján Šubjak, Davide Gandolfi, Elisa Goffo +33

We report on the discovery and spectroscopic confirmation of TOI-2458 b, a transiting mini-Neptune around an F-type star leaving the main-sequence with a mass of $M_\star=1.05 \pm…

astro-ph.IM2024★ 13 cited

The PLATO Mission

Heike Rauer, Conny Aerts, Juan Cabrera +842

PLATO (PLAnetary Transits and Oscillations of stars) is ESA's M3 mission designed to detect and characterise extrasolar planets and perform asteroseismic monitoring of a large numb…

astro-ph.SR2023★ 5 cited

In search of gravity mode signatures in main sequence solar-type stars observed by Kepler

Sylvain N. Breton, Hachem Dhouib, Rafael A. García +7

Gravity modes (g modes), mixed gravito-acoustic modes (mixed modes), and gravito-inertial modes (gi modes) possess unmatched properties as probes for stars with radiative interiors…

astro-ph.SR2019★ 2 cited

Determining surface rotation periods of solar-like stars observed by the Kepler mission using machine learning techniques

S. N. Breton, L. Bugnet, A. R. G. Santos +4

For a solar-like star, the surface rotation evolves with time, allowing in principle to estimate the age of a star from its surface rotation period. Here we are interested in measu…

astro-ph.SR2017★ 2 cited

FliPer: Checking the reliability of global seismic parameters from automatic pipelines

L. Bugnet, R. A. Garcia, G. R. Davies +2

Our understanding of stars through asteroseismic data analysis is limited by our ability to take advantage of the huge amount of observed stars provided by space missions such as C…

astro-ph.SR2016

Learning about the latitudinal distribution of starspots through the periodogram analysis of photometric data

A. R. G. Santos, M. S. Cunha, P. P. Avelino +2

Starspots are cooler and darker than the stellar surface. Therefore, the emitted flux of a star changes when spots are visible on its surface. The presence of spots together with t…

astro-ph.SR2016★ 39 cited

Starspot signature on the light curve: Learning about the latitudinal distribution of spots

A. R. G. Santos, M. S. Cunha, P. P. Avelino +2

Quasi-periodic modulations of the stellar light curve may result from dark spots crossing the visible stellar disc. Due to differential rotation, spots at different latitudes gener…