60 citations · 197 across the 8 of their papers we have counts for
6 papers
The corona of GJ 1151 in the context of star-planet interaction
G. Foster, K. Poppenhaeger, J. D. Alvarado-Gómez +1
The low-mass star GJ 1151 has been reported to display variable low-frequency radio emission, which has been interpreted as a signpost of coronal star-planet interactions with an u…
X-ray irradiation and evaporation of the four young planets around V1298 Tau
K. Poppenhaeger, L. Ketzer, M. Mallonn
Planets around young stars are thought to undergo atmospheric evaporation due to the high magnetic activity of the host stars. Here we report on X-ray observations of V1298 Tau, a…
Validation of a Temperate Fourth Planet in the K2-133 Multi-planet System
R. Wells, K. Poppenhaeger, C. A. Watson
We present follow-up observations of the K2-133 multi-planet system. Previously, we announced that K2-133 contained three super-Earths orbiting an M1.5V host star - with tentative…
Transit Visibility Zones of the Solar System Planets
R. Wells, K. Poppenhaeger, C. A. Watson +1
The detection of thousands of extrasolar planets by the transit method naturally raises the question of whether potential extrasolar observers could detect the transits of the Sola…
The high-energy environment in the super-earth system CoRoT-7
K. Poppenhaeger, S. Czesla, S. Schröter +3
High-energy irradiation of exoplanets has been identified to be a key influence on the stability of these planets' atmospheres. So far, irradiation-driven mass-loss has been observ…
A correlation between host star activity and planet mass for close-in extrasolar planets?
K. Poppenhaeger, J. H. M. M. Schmitt
The activity levels of stars are influenced by several stellar properties, such as stellar rotation, spectral type and the presence of stellar companions. In analogy to binaries, p…