Contributed Talk - Splinter Stellar

Friday, 25 September 2020, 09:56   (virtual room M)

The corona of GJ 1151 in the context of star-planet interaction

G. Foster, K. Poppenhaeger, J. D. Alvarado-Gómez, J.H.M.M. Schmitt
Leibniz Institute for Astrophysics Potsdam (AIP), Universität Potsdam,Universität Hamburg

GJ 1151 is a slow rotating M dwarf. This low mass star has been reported to display variable low-frequency radio emission, which has been interpreted as a signpost of coronal star-planet interactions with an unseen exoplanet. We reported the first X-ray detection of GJ 1151’s corona based on XMM-Newton data. Our detection found a low coronal temperature of 1.6 MK and an X-ray luminosity of LX = 5.5 × 1026 erg/s. In this talk, I will discuss how X-Ray observations of GJ 1151 are compatible with coronal assumptions used in a recently published model for a star-planet interaction origin of the observed radio signals from this star.