activity
20082024
most citedStellar Flares from the First Tess Data Release: Exploring a New Sample of M-dwarfs

339 citations · 1k across the 37 of their papers we have counts for

collaborators

37 papers

astro-ph.SR2024

A star under multiple influences. Magnetic activity in V815 Her, a compact 2+2 hierarchical system

Zs. Kovari, K. G. Strassmeier, L. Kriskovics +7

We are conducting a comprehensive investigation of V815 Her using photometric and spectroscopic data to understand the origin of the activity and what influences it in the short an…

astro-ph.SR2020★ 21 cited

Complex Modulation of Rapidly Rotating Young M Dwarfs: Adding Pieces to the Puzzle

Maximilian N. Günther, David A. Berardo, Elsa Ducrot +37

New sets of young M dwarfs with complex, sharp-peaked, and strictly periodic photometric modulations have recently been discovered with Kepler/K2 (scallop shells) and TESS (complex…

astro-ph.SR2020★ 24 cited

Superflares on the late-type giant KIC 2852961 -- Scaling effect behind flaring at different energy levels

Zs. Kővári, K. Oláh, M. N. Günther +7

The most powerful superflares reaching 10erg bolometric energy are from giant stars. The mechanism behind flaring is supposed to be the magnetic reconnection, which is close…

astro-ph.SR2019

Cycle times of early M dwarf stars: mean field models versus observations

Manfred Küker, Günther Rüdiger, Katalin Oláh +1

Observations of early-type M stars suggest that there are two characteristic cycle times, one of order one year for fast rotators ( day) and another of order four…

astro-ph.SR2019★ 14 cited

Magnetic activity of the young solar analogue V1358 Ori

L. Kriskovics, Zs. Kővári, K. Vida +3

Young, fast rotating single stars can show dramatically different magnetic signatures and levels of magnetic activity as compared with the Sun. While losing angular momentum due to…

astro-ph.SR2019★ 9 cited

Surface magnetic activity of the fast-rotating G5-giant IN Comae, central star of the faint planetary nebula LoTr 5

Zs. Kővári, K. G. Strassmeier, K. Oláh +8

On the AGB, low to intermediate mass stars blow away their outer envelopes, forming planetary nebulae. Interaction between the planetary nebula and its central progenitor is poorly…