HIP 41378 f (also known as EPIC 211311380 f) is an
exoplanet orbiting around the
F-typestarHIP 41378. It is the outermost planet of its system. It has an anomalously large radius (9.2
R🜨) for a planet of its size and temperature, therefore the radius may actually be that of an optically thick ring system.[2] It is located within the
optimistic habitable zone of its parent star.[3] No atmospheric signatures were found as in 2022, further reinforcing the hypothesis of opaque circumplanetary rings.[4]
^Santerne, A.; Malavolta, L.; Kosiarek, M. R.; Dai, F.; Dressing, C. D.; Dumusque, X.; Hara, N. C.; Lopez, T. A.; Mortier, A.; Vanderburg, A.; Adibekyan, V.; Armstrong, D. J.; Barrado, D.; Barros, S. C. C.; Bayliss, D.; Berardo, D.; Boisse, I.; Bonomo, A. S.; Bouchy, F.; Brown, D. J. A.; Buchhave, L. A.; Butler, R. P.; Collier Cameron, A.; Cosentino, R.; Crane, J. D.; Crossfield, I. J. M.; Damasso, M.; Deleuil, M. R.; Delgado Mena, E.; et al. (2019). "An extremely low-density and temperate giant exoplanet".
arXiv:1911.07355 [
astro-ph.EP].
^Alam, Munazza K.; Kirk, James; Dressing, Courtney D.; López-Morales, Mercedes; Ohno, Kazumasa; Gao, Peter; Akinsanmi, Babatunde; Santerne, Alexandre; Grouffal, Salomé; Adibekyan, Vardan; Barros, Susana C. C.; Buchhave, Lars A.; Crossfield, Ian J. M.; Dai, Fei; Deleuil, Magali; Giacalone, Steven; Lillo-Box, Jorge; Marley, Mark; Mayo, Andrew W.; Mortier, Annelies; Santos, Nuno C.; Sousa, Sérgio G.; Turtelboom, Emma V.; Wheatley, Peter J.; Vanderburg, Andrew M. (2022), "The First Near-infrared Transmission Spectrum of HIP 41378 f, A Low-mass Temperate Jovian World in a Multiplanet System", The Astrophysical Journal Letters, 927 (1): L5,
arXiv:2201.02686,
Bibcode:
2022ApJ...927L...5A,
doi:10.3847/2041-8213/ac559d,
S2CID245837282