371 citations · 592 across the 17 of their papers we have counts for
4 papers · 1 filter
Transitions in magnetic behavior at the substellar boundary
E. Magaudda, B. Stelzer, R. A. Osten +3
We aim at advancing our understanding of magnetic activity and the underlying dynamo mechanism at the end of the main-sequence. To this end, we collected simultaneous X-ray and rad…
Simultaneous X-ray and optical variability of M dwarfs observed with eROSITA and TESS
W. M. Joseph, B. Stelzer, E. Magaudda +1
We study variability through simultaneous optical and X-ray observations for the first time in a statistical sample of 256 M dwarfs. Such observations are required to constrain the…
The SRG/eROSITA all-sky survey: First X-ray catalogues and data release of the western Galactic hemisphere
A. Merloni, G. Lamer, T. Liu +142
The eROSITA telescope array aboard the Spektrum Roentgen Gamma (SRG) satellite began surveying the sky in December 2019, with the aim of producing all-sky X-ray source lists and sk…
The high-energy environment of the heavy sub-Earth GJ 367 b indicates likely complete evaporation of its atmosphere
K. Poppenhaeger, L. Ketzer, N. Ilic +5
The planet GJ 367 b is a recently discovered high-density sub-Earth orbiting an M dwarf star. Its composition was modelled to be predominantly iron with a potential remainder of a…