HIP 41378 f
| Discovery | |
|---|---|
| Discovery date | June 2016 |
| Transit | |
| Orbital characteristics | |
| 1.37±0.02 au | |
| 542.07975±0.00014 | |
| Star | HIP 41378[1] |
| Physical characteristics | |
| 9.2 ± 0.1 R🜨 | |
| Mass | 12 ± 3 ME |
Mean density | 0.09 ± 0.02 g cm−3 |
| Temperature | Teq: 294 K (21 °C; 70 °F) |
HIP 41378 f (also known as EPIC 211311380 f) is an exoplanet orbiting around the F-type star HIP 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]
See also
[edit]- Lists of exoplanets
- GJ 1132 b, rocky exoplanet with a confirmed atmosphere.
- Mu Arae c, in the constellation Ara
- Planetary system
References
[edit]- ^ "HIP 41378 f CONFIRMED PLANET OVERVIEW PAGE". NASA Exoplanet Archive. Retrieved 2016-07-08.
- ^ Akinsanmi, B.; Santos, N. C.; Faria, J. P.; Oshagh, M.; Barros, S. C. C.; Santerne, A.; Charnoz, S. (2020-03-01). "Can planetary rings explain the extremely low density of HIP 41378 𝑓?". Astronomy & Astrophysics. 635: L8. arXiv:2002.11422. doi:10.1051/0004-6361/202037618. ISSN 0004-6361.
- ^ 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, S2CID 245837282
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