An Eccentric Massive Jupiter Orbiting a Subgiant on a 9.5-day Period Discovered in the Transiting Exoplanet Survey Satellite Full Frame Images

Rodriguez, Joseph E.; Quinn, Samuel N.; Huang, Chelsea X.; Vanderburg, Andrew; Penev, K.; Brahm, R.; Jordán, Andrés; Ikwut-Ukwa, Mma; Tsirulik, Shelly; Latham, David W.; Stassun, Keivan G.; Shporer, Avi; Ziegler, Carl; Matthews, Elisabeth C.; Eastman, Jason D.; Gaudi, B. Scott; Collins, Karen A.; Guerrero, Natalia; Relles, Howard M.; Barclay, Thomas; Batalha, Natalie M.; Berlind, P.; Bieryla, Allyson; Bouma, Luke G.; Boyd, Patricia T.; Burt, Jennifer; Calkins, M.; Christiansen, Jessie L.; Ciardi, David R.; Colón, Knicole D.; Conti, Dennis M.; Crossfield, Ian J. M.; Daylan, Tansu; Dittmann, Jason; Dragomir, Diana; Dynes, Scott; Espinoza, N.; Esquerdo, Gilbert A.; Essack, Zahra; Soto, Aylin Garciá; Glidden, Ana; Günther, Maximilian N.; Henning, Thomas; Jenkins, Jon M.; Kielkopf, John F.; Krishnamurthy, Akshata; Law, Nicholas M.; Levine, Alan M.; Lewin, Pablo; Mann, Andrew; Morgan, E.; Morris, Robert; Oelkers, Ryan J.; Paegert, Martin; Pepper, Joshua; Quintana, Elisa V.; Ricker, G.; Rowden, Pamela; Seager, Sara; Sarkis, P.; Schlieder, Joshua E.; Sha, Lizhou; Tokovinin, Andreï; Torres, Guillermo; Vanderspek, R.; Villanueva, Steven; Villaseñor, J.; Winn, Joshua N.; Wohler, Bill; Wong, Ian; Yahalomi, Daniel A.; Yu, Li; Zhan, Zhuchang; Zhou, George

doi:10.3847/1538-3881/ab11d9

Cited by 52 publications

(34 citation statements)

References 69 publications

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“…The stellar brightness of HD118203 combined with the eccentric nature of the orbit presents an important opportunity to study the atmospheres of exoplanets under tidal stress from the host star. HD118203 b joins TOI-172b (Rodriguez et al 2019) and HD2685b (Jones et al 2019) as TESS-detected giant planets in eccentric orbits close to their host stars. In Section 2 we describe the details of TESS observations and photometry, as well as ground-based observations that contribute to the analysis.…”

Section: Introductionmentioning

confidence: 88%

TESS Reveals HD 118203 b to be a Transiting Planet

Pepper

Kane

Rodriguez

et al. 2020

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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., but was not previously known to transit. Transiting Exoplanet Survey Satellite (TESS) photometry has revealed that this planet transits its host star. Nine planetary transits were observed by TESS, allowing us to measure the radius of the planet to be-+ R 1.136 J 0.028 0.029 , and to calculate the planet mass to be-+ M 2.166 J 0.079 0.074 6.134985 0.000030 0.000029 days and an eccentricity of 0.314±0.017, the planet occupies a transitional regime between circularized hot Jupiters and more dynamically active planets at longer orbital periods. The host star is among the 10 brightest known to have transiting giant planets, providing opportunities for both planetary atmospheric and asteroseismic studies.

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Section: Introductionmentioning

confidence: 88%

TESS Reveals HD 118203 b to be a Transiting Planet

Pepper

Kane

Rodriguez

et al. 2020

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“…We do note, though, that more than half of the TESS stars brighter than 10th magnitude are evolved. Eventually, this will be a rich hunting ground (e.g., Huber et al 2019;Rodriguez et al 2019). Figure 15 shows the color-magnitude diagram (CMD) of the 120,000 stars brighter than T mag =10 that were observed by TESS.…”

Section: Main-sequence Samplementioning

confidence: 99%

Two New HATNet Hot Jupiters around A Stars and the First Glimpse at the Occurrence Rate of Hot Jupiters from TESS^∗

Zhou

Huang

Bakos

et al. 2019

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115

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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 and their parent stars. We report the discovery of HAT-P-69 b (TOI 625.01) and HAT-P-70 b (TOI 624.01), two new hot Jupiters around A stars from the Hungarian-made Automated Telescope Network (HATNet) survey that have also been observed by the Transiting Exoplanet Survey Satellite. HAT-P-69 b has a mass of-+ 3.58 0.58 0.58 M Jup and a radius of-+ 1.676 0.033 0.051 R Jup and resides in a prograde 4.79 day orbit. HAT-P-70 b has a radius of-+ 1.87 0.10 0.15 R Jup and a mass constraint of s <6.78 3 ()M Jup and resides in a retrograde 2.74 day orbit. We use the confirmation of these planets around relatively massive stars as an opportunity to explore the occurrence rate of hot Jupiters as a function of stellar mass. We define a sample of 47,126 main-sequence stars brighter than T mag =10 that yields 31 giant planet candidates, including 18 confirmed planets, 3 candidates, and 10 false positives. We find a net hot Jupiter occurrence rate of 0.41±0.10% within this sample, consistent with the rate measured by Kepler for FGK stars. When divided into stellar mass bins, we find the occurrence rate to be 0.71±0.31% for G stars, 0.43±0.15% for F stars, and 0.26±0.11% for A stars. Thus, at this point, we cannot discern any statistically significant trend in the occurrence of hot Jupiters with stellar mass.

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“…It will also overlap with the CVZs of the James Webb Space Telescope (JWST), providing key targets for detailed characterization. In about a hundred days of observations, TESS has already identified more than a hundred planet candidates, provided key observations to confirm several new planets, and provided new data on known transiting systems (Dragomir et al 2019;Gandolfi et al 2018;Huang et al 2018a;Nielsen et al 2019;Shporer et al 2019;Vanderspek et al 2019;Wang et al 2019;Quinn et al 2019;Rodriguez et al 2019).…”

Section: Introductionmentioning

confidence: 99%

The L 98-59 System: Three Transiting, Terrestrial-size Planets Orbiting a Nearby M Dwarf

Kostov

Schlieder

Barclay

et al. 2019

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We report the Transiting Exoplanet Survey Satellite (TESS) discovery of three terrestrial-size planets transiting L 98-59 (TOI-175, TIC 307210830)-a bright M dwarf at a distance of 10.6 pc. Using the Gaia-measured distance and broadband photometry, we find that the host star is an M3 dwarf. Combined with the TESS transits from three sectors, the corresponding stellar parameters yield planet radii ranging from 0.8 R ⊕ to 1.6 R ⊕. All three planets have short orbital periods, ranging from 2.25 to 7.45 days with the outer pair just wide of a 2:1 period resonance. Diagnostic tests produced by the TESS Data Validation Report and the vetting package DAVE rule out common false-positive sources. These analyses, along with dedicated follow-up and the multiplicity of the system, lend confidence that the observed signals are caused by planets transiting L 98-59 and are not associated with other sources in the field. The L 98-59 system is interesting for a number of reasons: the host star is bright (V= 11.7 mag, K=7.1 mag) and the planets are prime targets for further follow-up observations including precision radial-velocity mass measurements and future transit spectroscopy with the James Webb Space Telescope; the near-resonant configuration makes the system a laboratory to study planetary system dynamical evolution; and three planets of relatively similar size in the same system present an opportunity to study terrestrial planets where other variables (age, metallicity, etc.) can be held constant. L 98-59 will be observed in four more TESS sectors, which will provide a wealth of information on the three currently known planets and have the potential to reveal additional planets in the system.

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An Eccentric Massive Jupiter Orbiting a Subgiant on a 9.5-day Period Discovered in the Transiting Exoplanet Survey Satellite Full Frame Images

Cited by 52 publications

References 69 publications

TESS Reveals HD 118203 b to be a Transiting Planet

TESS Reveals HD 118203 b to be a Transiting Planet

Two New HATNet Hot Jupiters around A Stars and the First Glimpse at the Occurrence Rate of Hot Jupiters from TESS^∗

The L 98-59 System: Three Transiting, Terrestrial-size Planets Orbiting a Nearby M Dwarf

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An Eccentric Massive Jupiter Orbiting a Subgiant on a 9.5-day Period Discovered in the Transiting Exoplanet Survey Satellite Full Frame Images

Cited by 52 publications

References 69 publications

TESS Reveals HD 118203 b to be a Transiting Planet

TESS Reveals HD 118203 b to be a Transiting Planet

Two New HATNet Hot Jupiters around A Stars and the First Glimpse at the Occurrence Rate of Hot Jupiters from TESS∗

The L 98-59 System: Three Transiting, Terrestrial-size Planets Orbiting a Nearby M Dwarf

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Two New HATNet Hot Jupiters around A Stars and the First Glimpse at the Occurrence Rate of Hot Jupiters from TESS^∗