Results 31 to 40 of about 1,876 (134)

The Effect of Multiple Heat Sources on Exomoon Habitable Zones [PDF]

, 2017
With dozens of Jovian and super-Jovian exoplanets known to orbit their host stars in or near the stellar habitable zones, it has recently been suggested that moons the size of Mars could offer abundant surface habitats beyond the solar system.
Dobos, Vera, Heller, René, Turner, Edwin L.   +2 more
core   +2 more sources

Evolution of Stellar Activity and Habitable Zone. I. Ultraviolet Emission of Dwarfs in Open Clusters and Field Stars

The Astrophysical Journal Supplement Series
Near-ultraviolet (NUV) radiation from dwarf stars plays a critical role in shaping the habitability of planetary systems, yet its long-term evolution across different spectral types remains poorly investigated.
Xue Li, Song Wang, Jun Ma, Henggeng Han, Yang Huang, Jifeng Liu   +5 more
doaj   +1 more source

Super-Earths: A New Class of Planetary Bodies

, 2011
Super-Earths, a class of planetary bodies with masses ranging from a few Earth-masses to slightly smaller than Uranus, have recently found a special place in the exoplanetary science.
Armitage P. J., Christensen U. R., Clubb K., Dobrovolskis A. R., Fogg M. J., Ford E.B., Goldreich P., Haghighipour N., Haghighipour N., Hatzes A.P., Heng K., Michael S., Nader Haghighipour, Safronov V. S., Smoluchowski M. V., Sotin C., Stamenkovic V., Stamenkovic V., Steffen J. H., Swift D. C., Tackley P. J., Weidenschilling S. J.   +21 more
core   +1 more source

The HOSTS Survey for Exozodiacal Dust: Preliminary results and future prospects [PDF]

, 2018
[abridged] The presence of large amounts of dust in the habitable zones of nearby stars is a significant obstacle for future exo-Earth imaging missions.
Absil, O., Arbo, P., Bailey, V. P., Beichman, C., Bryden, G., Danchi, W. C., Defrère, D., Downey, E. C., Durney, O., Ertel, S., Esposito, S., Gaspar, A., Gelino, C., Grenz, P., Haniff, C. A., Hill, J. M., Hinz, P., Hoffmann, W. F., Kennedy, G. M., Leisenring, J. M., Marion, L., McMahon, T. J., Mennesson, B., Millan-Gabet, R., Montoya, M., Morzinski, K. M., Pinna, E., Power, J., Puglisi, A., Rieke, G., Roberge, A., Serabyn, E., Shannon, A. B., Skemer, A. J., Spalding, E., Stapelfeldt, K., Stone, J. M., Su, K. Y. L., Vaitheeswaran, V., Vaz, A., Weinberger, A. J., Willems, P., Wyatt, M. C.   +42 more
core   +3 more sources

Ultraviolet Photometry and Habitable Zones of over 2700 Planet-hosting Stars

The Astrophysical Journal Supplement Series
The ongoing discovery of exoplanets has sparked significant interest in finding suitable worlds that could potentially support life. Stellar ultraviolet (UV; 100–3000 Å) radiation may play a crucial role in determining the habitability of their planets ...
Xue Li, Song Wang, Henggeng Han, Jifeng Liu   +3 more
doaj   +1 more source

The Ice Cap Zone: A Unique Habitable Zone for Ocean Worlds

, 2018
Traditional definitions of the habitable zone assume that habitable planets contain a carbonate-silicate cycle that regulates CO2 between the atmosphere, surface, and the interior.
Levi, Amit, Ramirez, Ramses M.
core   +1 more source

Carbon Cycle Instability for High-CO2 Exoplanets: Implications for Habitability

The Astrophysical Journal
Implicit in the definition of the classical circumstellar habitable zone (HZ) is the hypothesis that the carbonate-silicate cycle can maintain clement climates on exoplanets with land and surface water across a range of instellations by adjusting ...
R. J. Graham, R. T. Pierrehumbert
doaj   +1 more source

On the Dynamics of Comets in Extrasolar Planetary Systems

, 2019
Since very recently, we acquired knowledge on the existence of comets in extrasolar planetary systems. The formation of comets together with planets around host stars now seems evident.
Beust, Brasser, Brasser, Carusi, Carusi, Cuntz, Eggl, Eiroa, Fouchard, Fouchard, Fouchard, Gonzalez, Hanslmeier, Henry, Kaib, Kaib, Kiefer, Kopparapu, Kovtyukh, Loibnegger, Lovis, Marino, Matrà, Rappaport, Raymond, Rickman, Rickman, Stern, Tuomi, van Belle, Welsh, Welsh, Whipple, Wyatt   +33 more
core   +1 more source

Application of the Titius-Bode Rule to the 55 Cancri System: Tentative Prediction of a Possibly Habitable Planet [PDF]

, 2011
Following the notion that the Titius-Bode rule (TBR) may also be applicable to some extra-solar planetary systems, although this number could be relatively small, it is applied to 55 Cancri, which is a G-type main-sequence star currently known to host ...
Cuntz, M.
core   +1 more source

Habitability in 4D: Predicting the Climates of Earth Analogs across Rotation and Orbital Configurations

The Astrophysical Journal
Earth-like planets in the circumstellar habitable zone (HZ) may have dramatically different climate outcomes depending on their spin–orbit parameters, altering their habitability for life as we know it.
Arthur D. Adams, Christopher Colose, Aronne Merrelli, Margaret Turnbull, Stephen R. Kane   +4 more
doaj   +1 more source