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32 papers · 2 filters
TOI 564 b and TOI 905 b: Grazing and Fully Transiting Hot Jupiters Discovered by TESS
Allen B. Davis, Songhu Wang, Matias Jones +46
We report the discovery and confirmation of two new hot Jupiters discovered by the Transiting Exoplanet Survey Satellite (TESS): TOI 564 b and TOI 905 b. The transits of these two…
KELT-25b and KELT-26b: A Hot Jupiter and a Substellar Companion Transiting Young A-stars Observed by TESS
Romy Rodríguez Martínez, B. Scott Gaudi, Joseph E. Rodriguez +89
We present the discoveries of KELT-25b (TIC 65412605, TOI-626.01) and KELT-26b (TIC 160708862, TOI-1337.01), two transiting companions orbiting relatively bright, early A-stars. Th…
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…
TESS Reveals HD 118203 b to be a Transiting Planet
Joshua Pepper, Stephen R. Kane, Joseph E. Rodriguez +30
The exoplanet HD 118203 b, orbiting a bright (V = 8.05) host star, was discovered using the radial velocity method by da Silva et al. (2006), but was not previously known to transi…
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…
TOI-222: a single-transit TESS candidate revealed to be a 34-day eclipsing binary with CORALIE, EulerCam and NGTS
Monika Lendl, François Bouchy, Samuel Gill +58
We report the period, eccentricity, and mass determination for the TESS single-transit event candidate TOI-222, which displayed a single 3000 ppm transit in the TESS two-minute cad…
Evidence for H Dissociation and Recombination Heat Transport in the Atmosphere of KELT-9b
Megan Mansfield, Jacob L. Bean, Kevin B. Stevenson +19
Phase curve observations provide an opportunity to study the full energy budgets of exoplanets by quantifying the amount of heat redistributed from their daysides to their nightsid…
Planet Hunters TESS I: TOI 813, a subgiant hosting a transiting Saturn-sized planet on an 84-day orbit
N. L. Eisner, O. Barragán, S. Aigrain +47
We report on the discovery and validation of TOI 813b (TIC 55525572 b), a transiting exoplanet identified by citizen scientists in data from NASA's Transiting Exoplanet Survey Sate…
Absence of a thick atmosphere on the terrestrial exoplanet LHS 3844b
Laura Kreidberg, Daniel D. B. Koll, Caroline Morley +16
Most known terrestrial planets orbit small stars with radii less than 60% that of the Sun. Theoretical models predict that these planets are more vulnerable to atmospheric loss tha…
Two new HATNet hot Jupiters around A stars, and the first glimpse at the occurrence rate of hot Jupiters from TESS
G. Zhou, C. X. Huang, G. Á. Bakos +68
Wide field surveys for transiting planets are well suited to searching diverse stellar populations, enabling a better understanding of the link between the properties of planets an…
OGLE-2018-BLG-1011L\lowercase{b,c}: Microlensing Planetary System with Two Giant Planets Orbiting a Low-mass Star
Cheongho Han, David P. Bennett, Andrzej Udalski +70
We report a multiplanetary system found from the analysis of microlensing event OGLE-2018-BLG-1011, for which the light curve exhibits a double-bump anomaly around the peak. We fin…
TOI-150b and TOI-163b: two transiting hot Jupiters, one eccentric and one inflated, revealed by TESS near and at the edge of the JWST CVZ
Diana Kossakowski, Néstor Espinoza, Rafael Brahm +51
We present the discovery of TYC9191-519-1b (TOI-150b, TIC 271893367) and HD271181b (TOI-163b, TIC 179317684), two hot Jupiters initially detected using 30-minute cadence Transiting…
The Degree of Alignment Between Circumbinary Disks and Their Binary Hosts
Ian Czekala, Eugene Chiang, Sean M. Andrews +5
All four circumbinary (CB) protoplanetary disks orbiting short-period ( day) double-lined spectroscopic binaries (SB2s)---a group that includes UZ Tau E, for which we prese…
KELT-24b: A 5M Planet on a 5.6 day Well-Aligned Orbit around the Young V=8.3 F-star HD 93148
Joseph E. Rodriguez, Jason D. Eastman, George Zhou +76
We present the discovery of KELT-24 b, a massive hot Jupiter orbiting a bright (V=8.3 mag, K=7.2 mag) young F-star with a period of 5.6 days. The host star, KELT-24 (HD 93148), has…
Parallax of OGLE-2018-BLG-0596: A Low-mass-ratio Planet around an M-dwarf
Youn Kil Jung, Andrew Gould, Andrzej Udalski +63
We report the discovery of a microlensing planet OGLE-2018-BLG-0596Lb, with preferred planet-host mass ratio . The planetary signal, which is chara…
TESS Spots a Compact System of Super-Earths around the Naked-Eye Star HR 858
Andrew Vanderburg, Chelsea X. Huang, Joseph E. Rodriguez +48
Transiting Exoplanet Survey Satellite (TESS) observations have revealed a compact multi-planet system around the sixth-magnitude star HR 858 (TIC 178155732, TOI 396), located 32 pa…
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…
Extreme Debris Disk Variability -- Exploring the Diverse Outcomes of Large Asteroid Impacts During the Era of Terrestrial Planet Formation
Kate Y. L. Su, Alan P. Jackson, Andras Gaspar +14
The most dramatic phases of terrestrial planet formation are thought to be oligarchic and chaotic growth, on timescales of up to 100-200 Myr, when violent impacts occur between lar…
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…
TESS Habitable Zone Star Catalog
L. Kaltenegger, J. Pepper, K. Stassun +1
We present the Transiting Exoplanet Survey Satellite (TESS) Habitable Zone Stars Catalog, a list of 1822 nearby stars with a TESS magnitude brighter than T = 12 and reliable distan…
The L 98-59 System: Three Transiting, Terrestrial-Sized Planets Orbiting a Nearby M-dwarf
Veselin B. Kostov, Joshua E. Schlieder, Thomas Barclay +112
We report the Transiting Exoplanet Survey Satellite (TESS) discovery of three terrestrial-sized planets transiting L 98-59 (TOI-175, TIC 307210830) -- a bright M dwarf at a distanc…
A super-Earth and two sub-Neptunes transiting the nearby and quiet M dwarf TOI-270
Maximilian N. Günther, Francisco J. Pozuelos, Jason A. Dittmann +57
We report the Transiting Exoplanet Survey Satellite discovery of three small planets transiting one of the nearest and brightest M dwarf hosts to date, TOI-270 (TIC 259377017; K-ma…
The Transiting Multi-planet System HD15337: Two Nearly Equal-mass Planets Straddling the Radius Gap
Davide Gandolfi, Luca Fossati, John H. Livingston +53
We report the discovery of a super-Earth and a sub-Neptune transiting the star HD 15337 (TOI-402, TIC 120896927), a bright (V=9) K1 dwarf observed by the Transiting Exoplanet Surve…
WASP-4b Arrived Early for the TESS Mission
L. G. Bouma, J. N. Winn, C. Baxter +21
The Transiting Exoplanet Survey Satellite (TESS) recently observed 18 transits of the hot Jupiter WASP-4b. The sequence of transits occurred 81.6 11.7 seconds earlier than ha…