activity
20192026
most citedThe quest for stellar coronal mass ejections in late-type stars: I. Investigating Balmer-line asymmetries of single stars in Virtual Observatory data

112 citations · 487 across the 37 of their papers we have counts for

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astro-ph.SR2026

Stellar flares with Ariel: detection prospects and impacts on exoplanet spectroscopy

K. Vida, B. Seli, B. Edwards

Stellar flares are important tracers of magnetic activity and can significantly influence the characterization of exoplanet host stars by introducing time-dependent astrophysical v…

astro-ph.SR2026

The FU Ori outburst of PR Ori B

Carlos Contreras Pena, Zsofia Nagy, Gregory Herczeg +42

We report the discovery of a nearby FU Ori-type outburst (FUor), PR Ori B, in the L1641 cluster of the Orion star-forming region. The high-amplitude variability was first identifie…

astro-ph.SR2026

Interferometric Images of the Starspot Evolution of Andromedae

Rachael M. Roettenbacher, John D. Monnier, Heidi Korhonen +21

The evolution of starspots of the giant primaries of RS CVn systems is typically detected indirectly with photometric and spectroscopic monitoring. These observations suggest slowl…

astro-ph.SR2026

Sub-second cadence structure of optical flares on AD Leo

B. Schmercz, B. Seli, K. Vida +4

Stellar flares are sudden brightenings caused by magnetic reconnection and are frequently observed on late-type stars. High-cadence photometry of flares provides valuable insights…

astro-ph.SR2025★ 2 cited

Magnetic activity on the young Sun: a case study of EK Draconis

A. Görgei, L. Kriskovics, K. Vida +8

Context. Young, solar analogue stars provide key insights into the early stages of stellar evolution, particularly in terms of magnetic activity and rotation. Their rapid rotation,…

astro-ph.SR2025★ 6 cited

Time-resolved protoplanetary disk physics in DQ Tau with JWST

Á. Kóspál, P. Ábrahám, V. V. Akimkin +17

Accretion variability is ubiquitous in YSOs. While large outbursts may strongly affect the disk, the effects of moderate bursts are less understood. We aim to study the physical re…