355 citations · 7.9k across the 267 of their papers we have counts for
17 papers · 1 filter
TOI-132 b: A short-period planet in the Neptune desert transiting a G-type star
Matías R. Díaz, James S. Jenkins, Davide Gandolfi +45
The Neptune desert is a feature seen in the radius-mass-period plane, whereby a notable dearth of short period, Neptune-like planets is found. Here we report the {\it TESS} discove…
MuSCAT2 multicolour validation of TESS candidates: an ultra-short-period substellar object around an M dwarf
H. Parviainen, E. Palle, M. R. Zapatero-Osorio +37
We report the discovery of TOI 263.01 (TIC 120916706), a transiting substellar object (R = 0.87 RJup) orbiting a faint M3.5~V dwarf (V=18.97) on a 0.56~d orbit. We set out to deter…
Kojima-1Lb Is a Mildly Cold Neptune around the Brightest Microlensing Host Star
A. Fukui, D. Suzuki, N. Koshimoto +56
We report the analysis of additional multiband photometry and spectroscopy and new adaptive optics (AO) imaging of the nearby planetary microlensing event TCP J05074264+2447555 (Ko…
Radial velocity confirmation of K2-100b: a young, highly irradiated, and low density transiting hot Neptune
O. Barragán, S. Aigrain, D. Kubyshkina +37
We present a detailed analysis of HARPS-N radial velocity observations of K2-100, a young and active star in the Praesepe cluster, which hosts a transiting planet with a period of…
Optical phase curve of the ultra-hot Jupiter WASP-121b
V. Bourrier, D. Kitzmann, T. Kuntzer +28
We present the analysis of TESS optical photometry of WASP-121b, which reveal the phase curve of this transiting ultra-hot Jupiter. Its hotspot is located at the substellar point,…
TOI-503: The first known brown dwarf-Am star binary from the TESS mission
Ján Šubjak, Rishikesh Sharma, Theron W. Carmichael +76
We report the discovery of an intermediate-mass transiting brown dwarf, TOI-503b, from the TESS mission. TOI-503b is the first brown dwarf discovered by TESS and orbits a metallic-…
It takes two planets in resonance to tango around K2-146
Kristine W. F. Lam, Judith Korth, Kento Masuda +51
K2-146 is a cool, 0.358 M_sun dwarf that was found to host a mini-Neptune with a 2.67-days period. The planet exhibited strong transit timing variations (TTVs) of greater than 30 m…
Three Red Suns in the Sky: A Transiting, Terrestrial Planet in a Triple M Dwarf System at 6.9 Parsecs
Jennifer G. Winters, Amber A. Medina, Jonathan M. Irwin +40
We present the discovery from TESS data of LTT 1445Ab. At a distance of 6.9 parsecs, it is the second nearest transiting exoplanet system found to date, and the closest one known f…
Multicolour photometry for exoplanet candidate validation
Hannu Parviainen, Brandon Tingley, Hans. J. Deeg +17
Context. The TESS and PLATO missions are expected to find vast numbers of new transiting planet candidates. However, only a fraction of these candidates will be legitimate planets,…
Greening of the Brown Dwarf Desert. EPIC 212036875 b -- a 51 M object in a 5 day orbit around an F7 V star
Carina M. Persson, Szilárd Csizmadia, Alexander J. Mustill +55
Our aim is to investigate the nature and formation of brown dwarfs by adding a new well-characterised object to the small sample of less than 20 transiting brown dwarfs. One brown…
MASCARA-3b: A hot Jupiter transiting a bright F7 star in an aligned orbit
M. Hjorth, S. Albrecht, G. J. J. Talens +12
We report the discovery of MASCARA-3b, a hot Jupiter orbiting its bright (V = 8.33) late F-type host every days in an almost circular orbit ($e = 0.050^{+0.020…
Characterization of the L 98-59 multi-planetary system with HARPS: two confirmed terrestrial planets and a mass upper limit on the third
R. Cloutier, N. Astudillo-Defru, X. Bonfils +33
L 98-59 (TIC 307210830, TOI-175) is a nearby M3 dwarf around which TESS revealed three terrestrial-sized transiting planets (0.80, 1.35, 1.57 Earth radii) in a compact configuratio…
Proxima Centauri b is not a transiting exoplanet
James S. Jenkins, Joseph Harrington, Ryan C. Challener +19
We report Spitzer Space Telescope observations during predicted transits of the exoplanet Proxima Centauri b. As the nearest terrestrial habitable-zone planet we will ever discover…
TOI-216b and TOI-216c: Two warm, large exoplanets in or slightly wide of the 2:1 orbital resonance
Rebekah I. Dawson, Chelsea X. Huang, Jack J. Lissauer +32
Warm, large exoplanets with 10-100 day orbital periods pose a major challenge to our understanding of how planetary systems form and evolve. Although high eccentricity tidal migrat…
Planetary system around the nearby M dwarf GJ 357 including a transiting, hot, Earth-sized planet optimal for atmospheric characterization
R. Luque, E. Pallé, D. Kossakowski +73
We report the detection of a transiting Earth-size planet around GJ 357, a nearby M2.5V star, using data from the Transiting Exoplanet Survey Satellite (TESS). GJ 357 b (TOI-562.01…
Qatar Exoplanet Survey: Qatar-8b, 9b and 10b --- A Hot Saturn and Two Hot Jupiters
Khalid Alsubai, Zlatan I. Tsvetanov, Stylianos Pyrzas +27
In this paper we present three new extrasolar planets from the Qatar Exoplanet Survey (QES). Qatar-8b is a hot Saturn, with Mpl = 0.37 Mjup and Rpl = 1.3 Rjup, orbiting a solar-lik…
Near-resonance in a system of sub-Neptunes from TESS
Samuel N. Quinn, Juliette C. Becker, Joseph E. Rodriguez +78
We report the Transiting Exoplanet Survey Satellite () detection of a multi-planet system orbiting the K0 dwarf TOI 125. We find evidence for up to five planets, wit…