A Warm Jupiter Transiting an M Dwarf: A TESS Single-transit Event Confirmed with the Habitable-zone Planet Finder

Cañas, Caleb I.; Stefánsson, Guðmundur; Kanodia, Shubham; Mahadevan, Suvrath; Cochran, William D.; Endl, Michael; Robertson, Paul; Bender, Chad F.; Ninan, Joe P.; Beard, Corey; Lubin, Jack; Gupta, Arvind F.; Everett, Mark E.; Monson, Andrew; Wilson, R.; Lewis, Hannah M.; Brewer, M.; Majewski, Steven R.; Hebb, Leslie; Dawson, Rebekah I.; Diddams, Scott A.; Ford, Eric B.; Fredrick, Connor; Halverson, Samuel; Hearty, Fred; Lin, Andrea S. J.; Metcalf, Andrew J.; Rajagopal, Jayadev; Ramsey, Lawrence W.; Roy, Arpita; Schwab, Christian; Terrien, Ryan C.; Wright, Jason T.

doi:10.3847/1538-3881/abac67

Cited by 30 publications

(36 citation statements)

References 126 publications

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“…To date, PHT has statistically confirmed one planet, TOI-813 (Eisner et al 2020b): a Saturn-sized planet on an 84-d orbit around a subgiant host star. Other PHT identified planets listed in this paper are being followed up by other teams of astronomers, such as TOI-1899 (TIC 172370679) which was recently confirmed to be a warm Jupiter transiting an M-dwarf (Cañas et al 2020). The remaining candidates outlined in this paper require further follow-up observations to confirm their planetary nature.…”

Section: O N C L U S I O Nmentioning

confidence: 79%

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Planet Hunters TESS II: findings from the first two years of TESS

Eisner

Barragán

Lintott

et al. 2020

Monthly Notices of the Royal Astronomical Society

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We present the results from the first two years of the Planet Hunters TESS (PHT) citizen science project, which identifies planet candidates in the TESS (Transiting Exoplanet Survey Satellite) data by engaging members of the general public. Over 22 000 citizen scientists from around the world visually inspected the first 26 sectors of TESS data in order to help identify transit-like signals. We use a clustering algorithm to combine these classifications into a ranked list of events for each sector, the top 500 of which are then visually vetted by the science team. We assess the detection efficiency of this methodology by comparing our results to the list of TESS Objects of Interest (TOIs) and show that we recover 85 per cent of the TOIs with radii greater than 4 R⊕ and 51 per cent of those with radii between 3 and 4 R⊕. Additionally, we present our 90 most promising planet candidates that had not previously been identified by other teams, 73 of which exhibit only a single-transit event in the TESS light curve, and outline our efforts to follow these candidates up using ground-based observatories. Finally, we present noteworthy stellar systems that were identified through the Planet Hunters TESS project.

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Section: O N C L U S I O Nmentioning

confidence: 79%

“…This candidate was independently discovered and verified using a BLS algorithm used to search for transiting planets around M dwarfs. The candidate is now the confirmed planet TOI 1899 b (Cañas et al 2020).…”

Section: Tic 172370679mentioning

confidence: 92%

Planet Hunters TESS II: findings from the first two years of TESS

Eisner

Barragán

Lintott

et al. 2020

Monthly Notices of the Royal Astronomical Society

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“…However, larger planets have been discovered, including Jupiter-sized planets transiting M dwarfs (e.g. Cañas et al 2020), meaning that we are undeniably un-derestimating the giant planet yield from TESS. The occurrence rates of these planets were low or missing from Kepler (e.g.…”

Section: Caveatsmentioning

confidence: 99%

Predicting the Exoplanet Yield of the TESS Prime and Extended Missions Through Years 1-7

Kunimoto,

Winn,

Ricker

et al. 2022

Preprint

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The Transiting Exoplanet Survey Satellite (TESS) has discovered ∼5000 planets and planet candidates after three and a half years of observations. With a planned second Extended Mission spanning Years 5 -7 on the horizon, now is the time to revise predictions of the TESS exoplanet yield. We present simulations of the number of detectable planets around 9.4 million AFGKM stars in the TESS Input Catalog Candidate Target List v8.01 through seven years of the TESS mission. Our simulations take advantage of improved models for the photometric performance and temporal window functions. The detection model was also improved by relying on the results of inject-and-recovery testing by the Kepler team. We estimate 4719 ± 334 planets around these stars should be detectable with data from the Prime Mission alone (Years 1 -2), and another 3707 ± 209 planets should be detectable by the end of the current Extended Mission (Years 3 -4). Based on a proposed pointing scenario for a second Extended Mission (Years 5 -7), we predict TESS should find a further 4093 ± 180 planets, bringing the total TESS yield to 12519 ± 678 planets. We provide our predicted yields as functions of host star spectral type, planet radius, orbital period, follow-up feasibility, and location relative to the habitable zone. We also compare our predictions to the actual Prime Mission yield, finding good agreement.

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“…Over the last two decades, more than a thousand transiting giant planets (defined as 𝑀 𝑝 > 0.3 𝑀 𝐽 ) have been discovered thanks to successful ground-based surveys, including HATNet (Bakos et al 2004), SuperWASP (Pollacco et al 2006), KELT (Pepper et al 2007(Pepper et al , 2012 and NGTS (Chazelas et al 2012;Wheatley et al 2018) as well as space transit missions like CoRoT (Baglin et al 2006), Kepler (Borucki et al 2010) and K2 (Howell et al 2014). However, even though M dwarfs are the most abundant stellar population in our Milky Way (Henry et al 2006), only five giant planets have been confirmed to transit them: Kepler-45b (Johnson et al 2012), HATS-6b (Hartman et al 2015), NGTS-1b (Bayliss et al 2018), HATS-71b (Bakos et al 2020) and TOI-1899b (Cañas et al 2020). The deficiency of such systems is thought to be caused by the failed growth of a massive core to start runaway accretion before the gaseous protoplanetary disk dissipates due to the low surface density (Laughlin et al 2004;Ida & Lin 2005;Kennedy & Kenyon 2008;Liu & Ji 2020).…”

Section: Introductionmentioning

confidence: 99%

TOI-530b: A giant planet transiting an M dwarf detected by TESS

Gan,

Lin,

Wang

et al. 2021

Preprint

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We report the discovery of TOI-530b, a transiting giant planet around an M0.5V dwarf, delivered by the Transiting Exoplanet Survey Satellite (TESS). The host star is located at a distance of 147.7 ± 0.6 pc with a radius of 𝑅 * = 0.54 ± 0.03 𝑅 and a mass of 𝑀 * = 0.53 ± 0.02 𝑀 . We verify the planetary nature of the transit signals by combining ground-based multi-wavelength photometry, high resolution spectroscopy from SPIRou as well as high-angular-resolution imaging. With 𝑉 = 15.4 mag, TOI-530b is orbiting one of the faintest stars accessible by ground-based spectroscopy. Our model reveals that TOI-530b has a radius of 0.83 ± 0.05 𝑅 𝐽 and a mass of 0.4 ± 0.1 𝑀 𝐽 on a 6.39-d orbit. TOI-530b is the sixth transiting giant planet hosted by an M-type star, which is predicted to be infrequent according to core accretion theory, making it a valuable object to further study the formation and migration history of similar planets. We discuss the potential formation channel of such systems.

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A Warm Jupiter Transiting an M Dwarf: A TESS Single-transit Event Confirmed with the Habitable-zone Planet Finder

Cited by 30 publications

References 126 publications

Planet Hunters TESS II: findings from the first two years of TESS

Planet Hunters TESS II: findings from the first two years of TESS

Predicting the Exoplanet Yield of the TESS Prime and Extended Missions Through Years 1-7

TOI-530b: A giant planet transiting an M dwarf detected by TESS

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