activity
20102024
most citedGround-based detection of an extended helium atmosphere in the Saturn-mass exoplanet WASP-69b

275 citations · 586 across the 9 of their papers we have counts for

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Showing astro-ph.SRShow all

6 papers · 1 filter

astro-ph.SR2024

A long-duration superflare on the K giant HD 251108

Hans Moritz Günther, Dheeraj Pasham, Alexander Binks +10

Many giant stars are magnetically active, which causes rotational variability, chromospheric emission lines, and X-ray emission. Large outbursts in these emission features can set…

astro-ph.SR2021★ 27 cited

The eROSITA Final Equatorial-Depth Survey (eFEDS). The stellar counterparts of eROSITA sources identified by machine learning and Bayesian algorithms

P. C. Schneider, S. Freund, S. Czesla +3

Stars are ubiquitous X-ray emitters and will be a substantial fraction of the X-ray sources detected in the on-going all-sky survey performed by the eROSITA instrument aboard the S…

astro-ph.SR2017★ 22 cited

The stellar content of the XMM-Newton slew survey

S. Freund, J. Robrade, C. Schneider +1

We present a detailed analysis of the stellar content of the current version of the XMM-Newton slew survey (XMMSL2). Since stars emit only a small fraction of their total luminosit…

astro-ph.SR2017★ 11 cited

Coronal X-ray emission and planetary irradiation in HD 209458

S. Czesla, M. Salz, P. C. Schneider +2

HD 209458 is one of the benchmark objects in the study of hot Jupiter atmospheres and their evaporation through planetary winds. The expansion of the planetary atmosphere is though…

astro-ph.SR2014★ 4 cited

A multiwavelength study of the hierarchical triple HD 181068: A test bed for studying star-planet-interaction?

S. Czesla, K. F. Huber, P. C. Schneider +1

HD 181068 is the only compact, triply eclipsing, hierarchical triple system containing a giant star known to date. With its central, highly-active G-type giant orbited by a close p…

astro-ph.SR2010★ 16 cited

X-raying the AU Microscopii debris disk

P. C. Schneider, J. H. M. M. Schmitt

AU Mic is a young, nearby X-ray active M-dwarf with an edge-on debris disk. Debris disk are the successors of the gaseous disks usually surrounding pre-main sequence stars which fo…