Habitability Models for Planetary Sciences

Méndez, Abel; Rivera-Valentín, E. G.; Schulze‐Makuch, Dirk; Filiberto, J.; Ramirez, Ramses M.; Wood, Tana E.; Dávila, Alfonso F.; Ceballos, Kevin Ortiz; Jusino-Maldonado, Marcos; Nery, Guillermo; Heller, René; Byrne, P. K.; Malaska, Michael J.; Nathan, Erica; Simões, Marta Filipa; Antunes, André; Martínez‐Frías, Jesús; Carone, L.; Izenberg, N. R.; Atri, Dimitra; Chitty, Humberto Itic Carvajal; Nowajewski-Barra, Priscilla; Rivera-Hernández, Frances; Brown, Corine Meredith; Lynch, Kennda; Catling, David C.; Zuluaga, Jorge I.; Salazar, Juan Francisco; Chen, Howard; González, Grizelle; Jagadeesh, Madhu Kashyap; Barnes, Rory; Cockell, Charles S.; Haqq-Misra, Jacob

doi:10.48550/arxiv.2007.05491

Cited by 3 publications

(3 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For a carbon based life form to emerge, the formation of a habitable zone is directly related to the distance of the planet to its respective star. Distance is directly related to average surface temperature, which entails looking for H 2 O in liquid form (Kasting et al, 1993;Franck et al, 2002;Méndez et al, 2020).…”

Section: Borders Of Life and Astrobiologymentioning

confidence: 99%

The Astrobiological Significance of Caves on Earth and on Mars

Çolak

Güngör

2022

International Journal of Environment and Geoinformatics

View full text Add to dashboard Cite

Caves are geologic entities that can be frequently found around the globe. Cave-like features have been documented on Mars by satellite imagery and special detection devices. On Earth Subterranean habitats like caves might host microbial growth because of their relatively stable physicochemical conditions and mineral rich content. Moreover, caves have also been isolated from UV radiation and other present environmental conditions which actually make them ideal for searching for unique microbial life. Mars is an arid planet with thin atmosphere and quite weak magnetosphere. Therefore Mars as it is known is uninhabitable. Research shows that Mars might have been a wet planet in the past, having streams of running water. Earth like subterranean cavities on Mars might provide protection from these environmental hazards. This makes Earth caves important astrobiological sites as Mars analogues for the investigation of the possibility of life on Mars. Researching caves both on Earth and Mars will provide us insight into extreme life conditions and important astrobiological questions. In this review, we are suggesting that geobiological significance of Earth caves plays an important role in searching for life on Mars and defining Mars analogues on Earth.

show abstract

Section: Borders Of Life and Astrobiologymentioning

confidence: 99%

The Astrobiological Significance of Caves on Earth and on Mars

Çolak

Güngör

2022

International Journal of Environment and Geoinformatics

View full text Add to dashboard Cite

show abstract

“…For truly terrestrial worlds such as TRAPPIST-1 e and f, simulated detections suggest spectral features of of CO 2 , CH 4 , and N 2 O features at the 4.3, 3.3, and 8.5 µm bands will be feasible within 30 transits for near-term observations by the JWST (e.g., Fauchez et al 2019;Lustig-Yaeger et al 2019;Wunderlich et al 2020;Kaltenegger & Lin 2021;Lustig-Yaeger et al 2022;Mikal-Evans 2022). In the next few years, more potentially habitable planets will be discovered, with the catalog of these systems to date on order of hundreds and growing; models of various complexities and heritages are just on the rise and will quantitatively evaluate their inhabitance or habitability (Méndez et al 2020;Fauchez et al 2021;Wordsworth & Kreidberg 2021;Cooke et al 2022).…”

Section: Introductionmentioning

confidence: 99%

Sporadic Spin-orbit Variations in Compact Multiplanet Systems and Their Influence on Exoplanet Climate

Chen

Paradise

et al. 2023

ApJL

View full text Add to dashboard Cite

Climate modeling has shown that tidally influenced terrestrial exoplanets, particularly those orbiting M-dwarfs, have unique atmospheric dynamics and surface conditions that may enhance their likelihood to host viable habitats. However, sporadic libration and rotation induced by planetary interactions, such as those due to mean motion resonances (MMR) in compact planetary systems, may destabilize attendant exoplanets away from synchronized states (1:1 spin-orbit ratios). Here, we use a three-dimensional N-rigid-body integrator and an intermediately complex general circulation model to simulate the evolving climates of TRAPPIST-1 e and f with different orbital- and spin-evolution pathways. Planet f scenarios perturbed by MMR effects with chaotic spin variations are colder and dryer compared to their synchronized counterparts due to the zonal drift of the substellar point away from open ocean basins of their initial eyeball states. On the other hand, the differences between perturbed and synchronized planet e are minor due to higher instellation, warmer surfaces, and reduced climate hysteresis. This is the first study to incorporate the time-dependent outcomes of direct gravitational N-rigid-body simulations into 3D climate modeling of extrasolar planets, and our results show that planets at the outer edge of the habitable zones in compact multiplanet systems are vulnerable to rapid global glaciations. In the absence of external mechanisms such as orbital forcing or tidal heating, these planets could be trapped in permanent snowball states.

show abstract

“…Out of the various definitions of habitability commonly used in the field of astrobiology (Méndez et al 2020), the most canonical definition of habitability used for the exoplanetary science is based on the habitable zone i.e the presence of surface liquid water on a planet (Kasting et al 1993). It is important to understand the origin of water on a planetary surface because it is essential for determining the planetary habitability and whether the planet can support life.…”

Section: Introductionmentioning

confidence: 99%

Planetary interior and habitability of exoplanets: Recent developments

Katyal

2021

Preprint

View full text Add to dashboard Cite

Habitability Models for Planetary Sciences

Cited by 3 publications

References 0 publications

The Astrobiological Significance of Caves on Earth and on Mars

The Astrobiological Significance of Caves on Earth and on Mars

Sporadic Spin-orbit Variations in Compact Multiplanet Systems and Their Influence on Exoplanet Climate

Planetary interior and habitability of exoplanets: Recent developments

Contact Info

Product

Resources

About