activity
20182026
most citedCharacteristics of flares on giant stars

15 citations · 32 across the 7 of their papers we have counts for

collaborators

8 papers

astro-ph.SR2026

TESS flares and chromospheric variability in the Pleiades, the Hyades, and Praesepe

A. Görgei, K. Vida, B. Seli +5

Magnetic activity is a result of the interaction between rotation and dynamo processes in cool stars with outer convection zones. Since open cluster members share a common age, dis…

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★ 2 cited

Four decades of photometry of XX Trianguli, `the most spotted star' in the sky

Zs. Kővári, K. G. Strassmeier, K. Oláh +3

Over the past 40 years the brightness variations of XX Tri, a single line RS CVn type binary system with a synchronized K-giant primary, has exceeded one magnitude in the V band. A…

astro-ph.SR2025★ 3 cited

Starspots on eclipsing giant stars I.: The sample and eclipse mapping examples

K. Oláh, B. Seli, A. Haris +12

Spotted stars in eclipsing binary systems allow us to gather significant information about the stellar surface inhomogeneities that is otherwise impossible from only photometric da…

astro-ph.SR2024

Magnetic activity under tidal influences in the 2+2~hierarchical quadruple system V815 Herculis

Zs. Kővári, K. G. Strassmeier, L. Kriskovics +5

Tidal forces in close binaries and multiple systems that contain magnetically active component are supposed to influence the operation of magnetic dynamo. Through synchronization t…

astro-ph.SR2022★ 15 cited

Characteristics of flares on giant stars

Katalin Oláh, Bálint Seli, Zsolt Kővári +2

Although late-type dwarfs and giant stars are substantially different, their flares are thought to originate in similar physical processes and differ only by a scale factor in the…

astro-ph.SR2018★ 10 cited

Eclipsing Spotted Giant Star With K2 and Historical Photometry

K. Oláh, S. Rappaport, T. Borkovits +15

Context. Stars can maintain their observable magnetic activity from the PMS to the tip of the red giant branch. However, the number of known active giants is much lower than active…