Results 11 to 20 of about 1,235,793 (297)

Trojans in Habitable Zones [PDF]

Astrobiology, 2005
With the aid of numerical experiments we examined the dynamical stability of fictitious terrestrial planets in 1:1 mean motion resonance with Jovian-like planets of extrasolar planetary systems. In our stability study of the so-called "Trojan" planets in the habitable zone, we used the restricted three-body problem with different mass ratios of the ...
Schwarz, Richard, Pilat-Lohinger, Elke, Dvorak, Rudolf, Erdi, Balint, Sandor, Zs   +4 more
openaire   +2 more sources

Extended Habitability of Exoplanets Due to Subglacial Water

The Astronomical Journal, 2023
Considering subglacial liquid water, a significant extension of the classical Habitable Zone is obtained. Elaborating on the model of Wandel it is shown how an atmosphere and liquid water could survive on tidally locked planets closely orbiting an M ...
Amri Wandel
doaj   +1 more source

Habitable zones and UV habitable zones around host stars [PDF]

Astrophysics and Space Science, 2009
Ultraviolet radiation is a double-edged sword to life. If it is too strong, the terrestrial biological systems will be damaged. And if it is too weak, the synthesis of many biochemical compounds can not go along. We try to obtain the continuous ultraviolet habitable zones, and compare the ultraviolet habitable zones with the habitable zones of host ...
Guo, Jianpo, Zhang, Fenghui, Zhang, Xianfei, Han, Zhanwen   +3 more
openaire   +2 more sources

No Evidence for More Earth-sized Planets in the Habitable Zone of Kepler's M versus FGK Stars

The Astronomical Journal, 2023
Reliable detections of Earth-sized planets in the habitable zone remain elusive in the Kepler sample, even for M dwarfs. The Kepler sample was once thought to contain a considerable number of M-dwarf stars ( T _eff < 4000 K), which hosted enough Earth ...
Galen J. Bergsten, Ilaria Pascucci, Kevin K. Hardegree-Ullman, Rachel B. Fernandes, Jessie L. Christiansen, Gijs D. Mulders   +5 more
doaj   +1 more source

Prospects for the characterization of habitable planets

Comptes Rendus. Physique, 2023
With thousands of exoplanets now identified, the characterization of habitable planets and the potential identification of inhabited ones is a major challenge for the coming decades.
Mazevet, Stephane, Affholder, Antonin, Sauterey, Boris, Bixel, Alex, Apai, Daniel, Ferriere, Regis   +5 more
doaj   +1 more source

A Habitable-zone Earth-sized Planet Rescued from False Positive Status [PDF]

, 2020
We report the discovery of an Earth-sized planet in the habitable zone of a low-mass star called Kepler-1649. The planet, Kepler-1649 c, is 1.06+0.15 -0.10 times the size of Earth and transits its 0.1977 ± 0.0051 M⊙mid M-dwarf host star every 19.5 days ...
Vanderburg, Andrew, Henze, Chris, Mullally, Susan E., Huang, Chelsea X., Bryson, Steve, Latham, David W., Rowden, Pamela, Quinn, Samuel N., Coughlin, Jeffrey, Batalha, Natalie, Collins, Karen A., Colón, Knicole D.   +11 more
core   +1 more source

Habitable Zone Lifetime of Exoplanets around Main Sequence Stars [PDF]

, 2013
Funding: Dean's Scholarship at the University of East Anglia.The potential habitability of newly discovered exoplanets is initially assessed by determining whether their orbits fall within the circumstellar habitable zone of their star.
Claire, M., Rushby, Andrew, Watson, A., Osborn, H., Claire, M.; id_orcid   +4 more
core   +1 more source

Effects of M dwarf magnetic fields on potentially habitable planets [PDF]

, 2013
A.A.V. acknowledges support from the Royal Astronomical Society through a post-doctoral fellowship. J.M. acknowledges support from a fellowship of the Alexander von Humboldt foundation. P.L. acknowledges funding from a STFC scholarship.
Morin, J., J.-F. Donati, Russell, A.J.B., P. Lang, Donati, J. -F., Jardine, M., A. A. Vidotto, M. Jardine, Morin, Julien, Donati, J.-F., Lang, P., Vidotto, A. A., Russell, A. J. B., Donati, J., Vidotto, A., A. J. B. Russell, J. Morin, Vidotto, A.A., Russell, A., J. -f. Donati, Jardine, M.; id_orcid, Russell, A.J.B.; id_orcid   +21 more
core   +1 more source

Palaeoecology of the Hiraiso Formation (Miyagi Prefecture, Japan) and implications for the recovery following the end-Permian mass extinction [PDF]

PeerJ, 2022
The Hiraiso Formation of northeast Japan represents an important and under-explored archive of Early Triassic marine ecosystems. Here, we present a palaeoecological analysis of its benthic faunas in order to explore the temporal and spatial variations of
William J. Foster, Amanda Godbold, Arnaud Brayard, Anja B. Frank, Stephen E. Grasby, Richard J. Twitchett, Tatsuo Oji   +6 more
doaj   +2 more sources

ASTROPHYSICAL PARAMETERS AND HABITABLE ZONE OF THE EXOPLANET HOSTING STAR GJ 581 [PDF]

, 2011
GJ 581 is an M dwarf host of a multiplanet system. We use long-baseline interferometric measurements from the CHARA Array, coupled with trigonometric parallax information, to directly determine its physical radius to be 0.299 ± 0.010 R_☉.
Kane, Stephen R., McAlister, Harold A., Sturmann, Laszlo, Stephen Ridgway, Goldfinger, P. J., Theo A. ten Brummelaar, Tabetha S. Boyajian, Adric R. Riedel, Ciardi, David R., Mercedes López-Morales, Kaspar von Braun, Stephen R. Kane, López-Morales, Mercedes, Gail Schaefer, Boyajian, Tabetha S., Henry, Todd J., Nils H. Turner, Andrew F. Boden, Boden, Andrew F., Chris Farrington, Harold A. McAlister, Subasavage, John P., Sturmann, Judit, Todd J. Henry, Mazingue, Jude, Jude Mazingue, Schaefer, Gail, Wei-Chun Jao, Laszlo Sturmann, Judit Sturmann, Gerard T. van Belle, Riedel, Adric R., Ridgway, Stephen, P. J. Goldfinger, Turner, Nils H., Farrington, Chris, David R. Ciardi, John P. Subasavage, Jao, Wei Chun, Von Braun, Kaspar, Van Belle, Gerard T., Ten Brummelaar, Theo A.   +41 more
core   +1 more source