KELT-23Ab: A Hot Jupiter Transiting a Near-solar Twin Close to the TESS and JWST Continuous Viewing Zones

@article{Johns2019KELT23AbAH,
  title={KELT-23Ab: A Hot Jupiter Transiting a Near-solar Twin Close to the TESS and JWST Continuous Viewing Zones},
  author={Daniel Johns and Phillip A. Reed and Joseph E. Rodriguez and Joshua A. Pepper and Keivan G. Stassun and Kaloyan Penev and B. Scott Gaudi and Jonathan Labadie-Bartz and Benjamin J. Fulton and Samuel N. Quinn and Jason D. Eastman and David R. Ciardi and Lea A. Hirsch and Daniel J. Stevens and Catherine P. Stevens and T. Oberst and David H. Cohen and Eric L. N. Jensen and Paul B Benni and Steven Villanueva and Gabriel Murawski and Allyson Bieryla and David W. Latham and Siegfried Vanaverbeke and Franky Dubois and Steve Rau and Ludwig Logie and R. M. Rauenzahn and Robert A. Wittenmyer and Roberto Zambelli and Daniel Bayliss and Thomas G. Beatty and Karen A. Collins and Knicole D. Col{\'o}n and Ivan A. Curtis and Phil Evans and Joao Gregorio and David J. James and Darren Lee Depoy and Marshall C. Johnson and Michael D. Joner and David H. Kasper and Somayeh Khakpash and John F. Kielkopf and Rudolf B. Kuhn and Michael B. Lund and Mark Manner and Jennifer L. Marshall and Kim K. McLeod and Matthew T. Penny and Howard M. Relles and Robert J. Siverd and Denise Catherine Stephens and Christopher Stockdale and T. G. Tan and Mark H. Trueblood and Patricia Trueblood and Xinyu Yao},
  journal={The Astronomical Journal},
  year={2019},
  volume={158}
}
We announce the discovery of KELT-23Ab, a hot Jupiter transiting the relatively bright (V = 10.3) star BD+66 911 (TYC 4187-996-1), and characterize the system using follow-up photometry and spectroscopy. A global fit to the system yields host-star properties of K, , , , (cgs), and . KELT-23Ab is a hot Jupiter with a mass of , radius of , and density of g cm−3. Intense insolation flux from the star has likely caused KELT-23Ab to become inflated. The time of inferior conjunction is and the… 

TESS Transit Timing of Hundreds of Hot Jupiters

We provide a database of transit times and updated ephemerides for 382 planets based on data from the NASA Transiting Exoplanet Survey Satellite (TESS) and previously reported transit times, which

Search for (sub)stellar Companions of Exoplanet Hosts by Exploring the Second ESA-Gaia Data Release

We present the latest results of an ongoing multiplicity survey of exoplanet hosts, which was initiated at the Astrophysical Institute and University Observatory Jena, using data from the second data

On a Possible Solution to the Tidal Realignment Problem for Hot Jupiters

TLDR
The model implies that hot Jupiters orbiting cool stars are probably not in immediate danger of being devoured by their host stars while they are on the main sequence, and a testable prediction of the model is that hot Jupiter hosts with orbital periods shorter than 2–3 days should have obliquities much smaller than 1°.

Visible-light Phase Curves from the Second Year of the TESS Primary Mission

We carried out a systematic study of full-orbit phase curves for known transiting systems in the northern ecliptic sky that were observed during Year 2 of the TESS primary mission. We applied the

Eating Planets for Lunch and Dinner: Signatures of Planet Consumption by Evolving Stars

Exoplanets have been observed around stars at all stages of stellar evolution, in many cases orbiting in configurations that will eventually lead to the planets being engulfed or consumed by their

References

SHOWING 1-10 OF 107 REFERENCES

KELT-22Ab: A Massive, Short-Period Hot Jupiter Transiting a Near-solar Twin

We present the discovery of KELT-22Ab, a hot Jupiter from the KELT-South survey. KELT-22Ab transits the moderately bright (V ∼ 11.1) Sun-like G2V star TYC 7518-468-1. The planet has an orbital period

KELT-1b: A STRONGLY IRRADIATED, HIGHLY INFLATED, SHORT PERIOD, 27 JUPITER-MASS COMPANION TRANSITING A MID-F STAR

We present the discovery of KELT-1b, the first transiting low-mass companion from the wide-field Kilodegree Extremely Little Telescope-North (KELT-North) transit survey. A joint analysis of the

KELT-18b: Puffy Planet, Hot Host, Probably Perturbed

We report the discovery of KELT-18b, a transiting hot Jupiter in a 2.87-day orbit around the bright (V = 10.1), hot, F4V star BD+60 1538 (TYC 3865-1173-1). We present follow-up photometry,

An orbital period of 0.94 days for the hot-Jupiter planet WASP-18b

TLDR
Either WASP-18 is in a rare, exceptionally short-lived state, or the tidal dissipation in this system (and possibly other hot-Jupiter systems) must be much weaker than in the Solar System.

TrES-1: The Transiting Planet of a Bright K0 V Star

We report the detection of a transiting Jupiter-sized planet orbiting a relatively bright (V = 11.79) K0 V star. We detected the transit light-curve signature in the course of the TrES multisite

KELT-7b: A HOT JUPITER TRANSITING A BRIGHT V = 8.54 RAPIDLY ROTATING F-STAR

We report the discovery of KELT-7b, a transiting hot Jupiter with a mass of 1.28 ± 0.18 ?> MJ, radius of 1.533 − 0.047 + 0.046 ?> RJ, and an orbital period of 2.7347749 ± 0.0000039 ?> days. The

Statistical Characterization of Hot Jupiter Atmospheres Using Spitzer’s Secondary Eclipses

We report 78 secondary eclipse depths for a sample of 36 transiting hot Jupiters observed at 3.6 and 4.5 μm using the Spitzer Space Telescope. Our eclipse results for 27 of these planets are new, and

Qatar-1b: A hot Jupiter orbiting a metal-rich K dwarf star

TLDR
The discovery and initial characterization of Qatar-1b, a hot Jupiter-orbiting metal-rich K dwarf star, the first planet discovered by the Qatar Exoplanet Survey is reported and the rate of astrophysical and other false positives found during the spectroscopic reconnaissance of the initial batch of candidates is examined.

KELT-8b: A HIGHLY INFLATED TRANSITING HOT JUPITER AND A NEW TECHNIQUE FOR EXTRACTING HIGH-PRECISION RADIAL VELOCITIES FROM NOISY SPECTRA

We announce the discovery of a highly inflated transiting hot Jupiter by the KELT-North survey. A global analysis including constraints from isochrones indicates that the V = 10.8 host star (HD

A Transiting “51 Peg-like” Planet

Doppler measurements from Keck exhibit a sinusoidal periodicity in the velocities of the G0 dwarf HD 209458, having a semiamplitude of 81 m s-1 and a period of 3.5239 days, which is indicative of a
...