@article{FosterPoppenhaegerAlvaradoGomezetal.2020,
  author    = {Foster, Mary Grace and Poppenh{\"a}ger, Katja and Alvarado-G{\´o}mez, Juli{\´a}n David and Schmitt, J{\"u}rgen},
  title     = {The corona of GJ 1151 in the context of star-planet interaction},
  series = {Monthly notices of the Royal Astronomical Society},
  volume    = {497},
  journal   = {Monthly notices of the Royal Astronomical Society},
  number    = {1},
  publisher = {Oxford Univ. Press},
  address   = {Oxford},
  issn      = {0035-8711},
  doi       = {10.1093/mnras/staa1982},
  pages     = {1015 -- 1019},
  year      = {2020},
  abstract  = {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 unseen exoplanet. Here we report the first X-ray detection of GJ 1151's corona based on the XMM-Newton data. We find that the star displays a small flare during the X-ray observation. Averaged over the observation, we detect the star with a low coronal temperature of 1.6 MK and an X-ray luminosity of L-X = 5.5 x 10(26) erg s(-1). During the quiescent time periods excluding the flare, the star remains undetected with an upper limit of L-X,L- qui <= 3.7 x 10(26) erg s(-1). This is compatible with the coronal assumptions used in a recently published model for a star-planet interaction origin of the observed radio signals from this star.},
  language  = {en}
}