학술논문
EPIC211089792 b: an aligned and inflated hot jupiter in a young visual binary
Document Type
Working Paper
Author
Santerne, A.; Hébrard, G.; Lillo-Box, J.; Armstrong, D. J.; Barros, S. C. C.; Demangeon, O.; Barrado, D.; Debackere, A.; Deleuil, M.; Mena, E. Delgado; Montalto, M.; Pollacco, D.; Osborn, H. P.; Sousa, S. G.; Abe, L.; Adibekyan, V.; Almenara, J. -M.; André, P.; Arlic, G.; Barthe, G.; Bendjoya, P.; Behrend, R.; Boisse, I.; Bouchy, F.; Boussier, H.; Bretton, M.; Brown, D. J. A.; Carry, B.; Cailleau, A.; Conseil, E.; Courcol, B.; Dauchet, B.; Dalouzy, J. -C.; Deldem, M.; Dubreuil, P.; Fehrenbach, J. -M.; Ferratfiat, S.; Girelli, R.; Gregorio, J.; Jaecques, S.; Kugel, F.; Kirk, J.; Labrevoir, O.; Lachurié, J. -C.; Lam, K. W. F.; Guen, P. Le; Martinez, P.; Maurin, L.; McCormac, J.; Pioppa, J-B.; Quadri, U.; Rajpurohit, A.; Rey, J.; Rivet, J. -P.; Roy, R.; Santos, N. C.; Signoret, F.; Strabla, L.; Suarez, O.; Toublanc, D.; Tsantaki, M.; Wilson, P. A.; Bachschmidt, M.; Colas, F.; Gerteis, O.; Louis, P.; Mario, J. -C.; Marlot, C.; Montier, J.; Perroud, V.; Pic, V.; Romeuf, D.; Ubaud, S.; Verilhac, D.
Source
2016, ApJ, 825, 55
Subject
Language
Abstract
In the present paper we report the discovery of a new hot Jupiter, EPIC211089792 b, first detected by the Super-WASP observatory and then by the K2 space mission during its campaign 4. The planet has a period of 3.25d, a mass of 0.73 +/- 0.04 Mjup, and a radius of 1.19 +/- 0.02 Rjup. The host star is a relatively bright (V=12.5) G7 dwarf with a nearby K5V companion. Based on stellar rotation and the abundance of Lithium, we find that the system might be as young as about 450 Myr. The observation of the Rossiter-McLaughlin effect shows the planet is aligned with respect to the stellar spin. Given the deep transit (20mmag), the magnitude of the star and the presence of a nearby stellar companion, the planet is a good target for both space- and ground-based transmission spectroscopy, in particular in the near-infrared where the both stars are relatively bright.
Comment: Submitted to ApJ
Comment: Submitted to ApJ