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Future direct imaging space telescopes, such as NASA's Habitable Worlds Observatory (HWO), will be the first capable of both detecting and characterizing terrestrial exoplanets in the habitable zones (HZ) of nearby Sun-like stars. Since…

Earth and Planetary Astrophysics · Physics 2025-05-28 Austin Ware , Patrick Young

The catalog of stellar evolution tracks discussed in our previous work is meant to help characterize exoplanet host-stars of interest for follow-up observations with future missions like JWST. However, the utility of the catalog has been…

Earth and Planetary Astrophysics · Physics 2020-01-29 Amanda R. Truitt , Patrick A. Young , Sara I. Walker , Alexander Spacek

(Shortened) We have used the measured properties of the stars in the 79 exoplanetary systems with one or more planets that have been observed in transit, to estimate each system's present habitability. The measured stellar properties have…

Earth and Planetary Astrophysics · Physics 2015-05-19 Barrie W Jones , P Nick Sleep

A habitable zone of a star is defined as a range of orbits within which a rocky planet can support liquid water on its surface. The most intriguing question driving the search for habitable planets is whether they host life. But is the age…

Earth and Planetary Astrophysics · Physics 2016-03-24 M. Safonova , J. Murthy , Yu. A. Shchekinov

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 distances from Gaia DR2, around which the NASA's TESS mission can…

Earth and Planetary Astrophysics · Physics 2019-03-28 L. Kaltenegger , J. Pepper , K. Stassun , R. Oelkers

Dozens of habitable zone, approximately earth-sized exoplanets are known today. An emerging frontier of exoplanet studies is identifying which of these habitable zone, small planets are actually habitable (have all necessary conditions for…

With more and more exoplanets being detected, it is paid closer attention to whether there are lives outside solar system. We try to obtain habitable zones and the probability distribution of terrestrial planets in habitable zones around…

Solar and Stellar Astrophysics · Physics 2010-03-09 Jianpo Guo , Fenghui Zhang , Xuefei Chen , Zhanwen Han

Seven Earth-sized planets, TRAPPIST-1 system, were discovered in February 2017. Three of these planets are in the habitable zone (HZ) of their star, making them potentially habitable planets a mere 40 light years away. Discovery of the…

Earth and Planetary Astrophysics · Physics 2017-12-05 Snehanshu Saha , Suryoday Basak , Kakoli Bora , Margarita Safonova , Surbhi Agrawal , Poulami Sarkar , Jayant Murthy

The investigation of exoplanetary habitability is integral to advancing our knowledge of extraterrestrial life potential and detailing the environmental conditions of distant worlds. In this analysis, we explore the properties of exoplanets…

Earth and Planetary Astrophysics · Physics 2024-08-20 Jonathan H. Jiang , Philip E. Rosen , Christina X. Liu , Qianzhuang Wen , Yanbei Chen

In the search for life in the cosmos, NASA's Transiting Exoplanet Survey Satellite (TESS) mission has already monitored about 74% of the sky for transiting extrasolar planets, including potentially habitable worlds. However, TESS only…

Earth and Planetary Astrophysics · Physics 2021-05-05 L. Kaltenegger , J. Pepper , P. M. Christodoulou , K. Stassun , S. Quinn , C. Burke

With continued improvement in telescope sensitivity and observational techniques, the search for rocky planets in stellar habitable zones is entering an exciting era. With so many exoplanetary systems available for follow-up observations to…

Earth and Planetary Astrophysics · Physics 2017-06-20 Matthew T. Agnew , Sarah T. Maddison , Elodie Thilliez , Jonathan Horner

A planet's history dictates its current potential to host habitable conditions and life. The concept of the Continuously Habitable Zone (CHZ) has been used to define the region around a star most likely to host planets with long-term…

Earth and Planetary Astrophysics · Physics 2023-02-22 Noah W. Tuchow , Jason T. Wright

Exoplanet habitability is traditionally assessed by comparing a planet's semi-major axis to the location of its host star's "habitable zone," the shell around a star for which Earth-like planets can possess liquid surface water. The Kepler…

Earth and Planetary Astrophysics · Physics 2015-10-01 Rory Barnes , Victoria S. Meadows , Nicole Evans

Earth will become uninhabitable within 2-3 Gyr as a result of the moving boundaries of the habitable zone caused by the increasing luminosity of the Sun. Predictions about the future of habitable conditions on Earth include a decline in…

Earth and Planetary Astrophysics · Physics 2015-06-03 J. T. O'Malley-James , J. S. Greaves , J. A. Raven , C. S. Cockell

Several concepts have been brought forward to determine where terrestrial planets are likely to remain habitable in multi-stellar environments. Isophote-based habitable zones, for instance, rely on insolation geometry to predict…

Earth and Planetary Astrophysics · Physics 2020-09-07 Siegfried Eggl , Nikolaos Georgakarakos , Elke Pilat-Lohinger

Future space telescopes may be able to directly image $\sim$10 - 100 planets with sizes and orbits consistent with habitable surface conditions ("exo-Earth candidates" or EECs), but observers will face difficulty in distinguishing these…

Earth and Planetary Astrophysics · Physics 2020-02-27 Alex Bixel , Dániel Apai

Terrestrial planets in the habitable zone around nearby stars are of great interest and provide a good sample for further characteristics of their habitability. In this paper, we collect a nearby star catalog within 20 pc according to the…

Earth and Planetary Astrophysics · Physics 2023-10-24 Qiaoyang Hao , Shenwei Zhou , Huigen Liu

Radial velocity surveys are now able to detect terrestrial planets at habitable distance from M-type stars. Recently, two planets with minimum masses below 10 Earth masses were reported in a triple system around the M-type star Gliese 581.…

Astrophysics · Physics 2008-02-18 Franck Selsis , J. F. Kasting , B. Levrard , J. Paillet , I. Ribas , X. Delfosse

The conditions that a planet must fulfill to be habitable are not precisely known. However, it is comparatively easier to define conditions under which a planet is very likely not habitable. Finding such conditions is important as it can…

Earth and Planetary Astrophysics · Physics 2015-06-17 Yann Alibert

Exoplanet detection in the past decade by efforts including NASA's Kepler and TESS missions has discovered many worlds that differ substantially from planets in our own Solar System, including more than 150 exoplanets orbiting binary or…

Earth and Planetary Astrophysics · Physics 2022-05-03 Zhihui Kong , Jonathan H. Jiang , Remo Burn , Kristen A. Fahy , Zonghong Zhu
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