289 citations · 2k across the 88 of their papers we have counts for
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A possible misaligned orbit for the young planet AU Mic c
H. Yu, Z. Garai, M. Cretignier +98
The AU Microscopii planetary system is only 24 Myr old, and its geometry may provide clues about the early dynamical history of planetary systems. Here, we present the first measur…
Stellar flare morphology with TESS across the main sequence
Bálint Seli, Krisztián Vida, Katalin Oláh +5
Stellar flares are abundant in space photometric light curves. As they are now available in large enough numbers, the statistical study of their overall temporal morphology is time…
Gaia20bdk -- a new FUor in Sh 2-301 Star Forming Region
M. Siwak, Á. Kóspál, P. Ábrahám +28
Context. We analyse multi-colour photometric and spectroscopic observations of a Young Stellar Object Gaia20bdk. Aims. We aim to investigate the exact nature of the eruptive phenom…
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…
Ejecta masses in Type Ia Supernovae -- Implications for the Progenitor and the Explosion Scenario
Zsófia Bora, Réka Könyves-Tóth, József Vinkó +35
The progenitor system(s) as well as the explosion mechanism(s) of thermonuclear (Type Ia) supernovae are long-standing issues in astrophysics. Here we present ejecta masses and oth…
Stellar flares, superflares and coronal mass ejections -- entering the Big data era
Krisztián Vida, Zsolt Kővári, Martin Leitzinger +6
Flares, sometimes accompanied by coronal mass ejections (CMEs), are the result of sudden changes in the magnetic field of stars with high energy release through magnetic reconnecti…
Searching for stellar CMEs in the Praesepe and Pleiades clusters
K. Vida, B. Seli, R. M. Roettenbacher +4
On the Sun, the energetic, erupting phenomena of flares and coronal mass ejections (CMEs) often occur together. While space-based photometry has revealed frequent white-light flare…
NEOWISE-R Caught the Luminous SN 2023ixf in Messier 101
Schuyler D. Van Dyk, Tamas Szalai, Roc M. Cutri +16
The reactivated Near-Earth Object Wide-field Infrared Survey Explorer (NEOWISE-R) serendipitously caught the Type II supernova SN 2023ixf in Messier 101 on the rise, starting day 3…
CHEOPS in-flight performance: A comprehensive look at the first 3.5 years of operations
A. Fortier, A. E. Simon, C. Broeg +128
CHEOPS is a space telescope specifically designed to monitor transiting exoplanets orbiting bright stars. In September 2023, CHEOPS completed its nominal mission and remains in exc…
Atmospheric parameters and abundances of cool red giant stars
Z. Dencs, A. Derekas, T. Mitnyan +10
Understanding the atmospheric parameters of stars on the top of the RGB is essential to reveal the chemical composition of the Milky Way, as they can be used to probe the farthest…
Detailed cool star flare morphology with CHEOPS and TESS
G. Bruno, I. Pagano, G. Scandariato +79
Context. White-light stellar flares are proxies for some of the most energetic types of flares, but their triggering mechanism is still poorly understood. As they are associated wi…
The Enigma of Gaia18cjb: a Rare Hybrid of FUor and EXor?
Eleonora Fiorellino, Peter Abraham, Agnes Kospal +28
Context. Gaia18cjb is one of the Gaia-alerted eruptive young star candidates which has been experiencing a slow and strong brightening during the last 13 years, similar to some FU…
Detecting coronal mass ejections with machine learning methods
K. Vida, B. Seli, T. Szklenár +3
Flares on the Sun are often associated with ejected plasma: these events are known as coronal mass ejections (CMEs). These events, although are studied in detail on the Sun, have o…
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…