Journal
ASTRONOMICAL JOURNAL
Volume 160, Issue 4, Pages -Publisher
IOP Publishing Ltd
DOI: 10.3847/1538-3881/abac0c
Keywords
-
Categories
Funding
- NASA Explorer Program
- European Southern Observatory under ESO programs [0103.C-0874, 0103.C-0449(A)]
- NASA Office of Space Science [NNX13AC07G]
- MIT's Kavli Institute
- Swiss National Science Foundation [200020_172746]
- European Research Council (ERC) under the European Union's Horizon 2020 research and innovation program (project FOUR ACES) [724427]
- NASA through Hubble Fellowship by the Space Telescope Science Institute [HST-HF2-51399.001]
- NASA [NAS5-26555]
- Branco-Weiss Fellowship
- European Research Council (ERC) under the European Union's Horizon 2020 research and innovation program [851555]
- National Science Foundation Graduate Research Fellowship Program [DGE-1746045]
Ask authors/readers for more resources
We report the detection of a transiting hot Neptune exoplanet orbiting TOI-824 (SCR J1448-5735), a nearby (d.=.64 pc) K4V star, using data from the Transiting Exoplanet Survey Satellite. The newly discovered planet has a radius R-p = 2.93 +/- 0.20 R-circle plus and an orbital period of 1.393 days. Radial velocity measurements using the Planet Finder Spectrograph and the High Accuracy Radial velocity Planet Searcher spectrograph confirm the existence of the planet, and we estimate its mass to be 18.47 +/- 1.84 M-circle plus. The planet's mean density is rho(p) = 4.03(0.78)(+0.98) g cm(-3), making it more than twice as dense as Neptune. TOI-824 b's high equilibrium temperature makes the planet likely to have a cloud-free atmosphere, and thus it is an excellent candidate for follow-up atmospheric studies. The detectability of TOI-824 b's atmosphere from both ground and space is promising and could lead to the detailed characterization of the most irradiated small planet at the edge of the hot Neptune desert that has retained its atmosphere to date.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available