KELT-10b

KELT-10b is an exoplanet orbiting the G-type main-sequence star KELT-10 approximately 618 light-years away in the southern constellation Telescopium. It was discovered using the transit method, and was announced in 2016.

KELT-10b
KELT-10b compared to Jupiter
KELT-10b (white) compared to Jupiter
Discovery[1]
Discovered byKuhn et al. 2016
Discovery siteSouth African Astronomical Observatory (KELTSouth)
Discovery datearound 2016
Transit
Orbital characteristics[1]
0.0525 AU[1]
4.16±0.00 d
Inclination88.61°+0.86°
−0.74°[1]
2,457,066±0 JD[1]
Semi-amplitude80±3 m/s[1]
StarKELT-10
Physical characteristics
Mean radius
1.399+0.069
−0.049 RJ[1]
Mass0.68±0.04 MJ[1]
Mean density
0.31+0.03
−0.04 g/cm3[1] (0.01±0.00 lb/cu in)
Temperature1,377+28
−23 K[1]

    Discovery

    KELT-10b was discovered by a group of scientists at the SAAO using the KELT-South telescope. The light curves and parameters of the system were observed, and it iss predicted that due to the host's activity and evolution state along the HR Diagram, the planet is bloated. KELT-10b is part of a group of exoplanets that will be observed by the ESA mission ARIEL.[2]

    Properties

    KELT-10b has 68% the mass of Jupiter, but is about 40% larger than the Jovian planet. The planet is less dense than Jupiter due to its mass, and has an equilibrium temperature of 1,377 K. KELT-10b has a typical four-day orbit around its host at a separation about ten times greater than Mercury, but is unknown if it's orbiting on a circular or an elliptical one.[1] Observations of the planet with the Very Large Telescope resulted in the discovery of the presence of sodium in the atmosphere.[3]

    See also

    References
    1. Kuhn, Rudolf B.; Rodriguez, Joseph E.; Collins, Karen A.; Lund, Michael B.; Siverd, Robert J.; Colón, Knicole D.; Pepper, Joshua; Stassun, Keivan G.; Cargile, Phillip A.; James, David J.; Penev, Kaloyan (2016-07-01). "KELT-10b: the first transiting exoplanet from the KELT-South survey - a hot sub-Jupiter transiting a V = 10.7 early G-star". Monthly Notices of the Royal Astronomical Society. 459 (4): 4281–4298. Bibcode:2016MNRAS.459.4281K. doi:10.1093/mnras/stw880. ISSN 0035-8711.
    2. Edwards, Billy; Mugnai, Lorenzo; Tinetti, Giovanna; Pascale, Enzo; Sarkar, Subhajit (2019-06-01). "An Updated Study of Potential Targets for Ariel". The Astronomical Journal. 157 (6): 242. Bibcode:2019AJ....157..242E. doi:10.3847/1538-3881/ab1cb9. hdl:11573/1279111. ISSN 0004-6256. S2CID 152282394.
    3. McCloat, Sean; von Essen, Carolina; Fieber-Beyer, Sherry (7 September 2021). "Atmospheric Transmission Spectroscopy of Hot Jupiter KELT-10b using Synthetic Telluric Correction Software". The Astronomical Journal. 162 (4). 132. Bibcode:2021AJ....162..132M. doi:10.3847/1538-3881/ac132b.
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