K2-29 b/WASP-152 b: AN ALIGNED AND INFLATED HOT JUPITER IN A YOUNG VISUAL BINARY
SANTOS, N. C.
Centro de Astrofísica da Universidade do Porto [CAUP]
Departamento de Física e Astronomia [Porto] [DFA/FCUP]
< Reduce
Centro de Astrofísica da Universidade do Porto [CAUP]
Departamento de Física e Astronomia [Porto] [DFA/FCUP]
Language
en
Article de revue
This item was published in
The Astrophysical Journal. 2016-06, vol. 824, n° 1
American Astronomical Society
English Abstract
In the present paper we report the discovery of a new hot Jupiter, K2-29 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 3.25 days, a mass ...Read more >
In the present paper we report the discovery of a new hot Jupiter, K2-29 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 3.25 days, a mass of 0.73 +/- 0.04M(sic), and a radius of 1.19 +/- 0.02 R(sic). 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 similar to 450 Myr. The observation of the Rossiter-McLaughlin effect shows that the planet is aligned with respect to the stellar spin. Given the deep transit (20 mmag), 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 both stars are relatively bright.Read less <