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

Kunimoto, Michelle; Winn, Joshua N.; Ricker, George R.; Vanderspek, Roland

doi:10.48550/arxiv.2202.03656

Cited by 4 publications

(4 citation statements)

References 38 publications

(118 reference statements)

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“…Finally, the significance of the above occurrence rate of aqua planets with temperate climates may be realised by comparison with the number of HZ-NEMPs possibly detected by ongoing and future survey missions such as TESS and PLATO. TESS is estimated to detect ∼10 HZ-NEMPs around early M dwarfs of 0.3-0.5 M [26], and PLATO will detect ∼100 HZ-NEMPs [27]. Multiplying the number of possible detections by the predicted occurrence rate, our model predicts that 5-10 aqua planets with temperate climates will be discovered in the 2020s, whereas the previous model predicting the occurrence rate of < 0.01% [6] suggests that the discovery is hopeless.…”

Section: Discussionmentioning

confidence: 70%

Predicted diversity in water content of terrestrial exoplanets orbiting M dwarfs

Kimura

Ikoma

2022

Nat Astron

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Exoplanet surveys around M dwarfs have detected a growing number of exoplanets with Earth-like insolation. It is expected that some of those planets are rocky planets with the potential for temperate climates favourable to surface liquid water. However, various models predict that terrestrial planets orbiting in the classical habitable zone around M dwarfs have no water or too much water, suggesting that habitable planets around M dwarfs might be rare. Here we present the results of an updated planetary population synthesis model, which includes the effects of water enrichment in the primordial atmosphere, caused by the oxidation of atmospheric hydrogen by rocky materials from incoming planetesimals and from the magma ocean. We find that this water production in the primordial atmosphere is found to significantly impact the occurrence of terrestrial rocky aqua planets, yielding ones with diverse water content. We estimate that 5-10% of the planets with a size < 1.3R ⊕ orbiting early-to-mid M dwarfs have appropriate amounts of seawater for habitability. Such an occurrence rate would be high enough to detect potentially habitable planets by ongoing and nearfuture M-dwarf planet survey missions.

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Section: Discussionmentioning

confidence: 70%

Predicted diversity in water content of terrestrial exoplanets orbiting M dwarfs

Kimura

Ikoma

2022

Nat Astron

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“…The goal of TESS is to detect small planets in orbit around bright stars ranging from M-dwarfs to F-dwarfs [84]. The TESS mission has already detected over 5,000 planets and planet candidates and may detect over 12,000 planets during its extended seven year mission duration [85].…”

Section: Current Ongoing Recent and Past Missionsmentioning

confidence: 99%

Searching for technosignatures in exoplanetary systems with current and future missions

et al. 2022

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Section: Current Ongoing Recent and Past Missionsmentioning

confidence: 99%

Searching for technosignatures in exoplanetary systems with current and future missions

Haqq-Misra,

Schwieterman,

Socas-Navarro

et al. 2022

Preprint

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Technosignatures refer to observational manifestations of technology that could be detected through astronomical means. Most previous searches for technosignatures have focused on searches for radio signals, but many current and future observing facilities could also constrain the prevalence of some non-radio technosignatures. This search could thus benefit from broader participation by the astronomical community, as contributions to technosignature science can also take the form of negative results that provide statistically meaningful quantitative upper limits on the presence of a signal. This paper provides a synthesis of the recommendations of the 2020 TechnoClimes workshop, which was an online event intended to develop a research agenda to prioritize and guide future theoretical and observational studies technosignatures. The paper provides a high-level overview of the use of current and future missions to detect exoplanetary technosignatures at ultraviolet, optical, or infrared wavelengths, which specifically focuses on the detectability of atmospheric technosignatures, artificial surface modifications, optical beacons, space engineering and megastructures, and interstellar flight. This overview does not derive any new quantitative detection limits but is intended to provide additional science justification for the use of current and planned observing facilities as well as to inspire astronomers conducting such observations to consider the relevance of their ongoing observations to technosignature science. This synthesis also identifies possible technology gaps with the ability of current and planned missions to search for technosignatures, which suggests the need to consider technosignature science cases in the design of future mission concepts.

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

Cited by 4 publications

References 38 publications

Predicted diversity in water content of terrestrial exoplanets orbiting M dwarfs

Predicted diversity in water content of terrestrial exoplanets orbiting M dwarfs

Searching for technosignatures in exoplanetary systems with current and future missions

Searching for technosignatures in exoplanetary systems with current and future missions

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