Results 11 to 20 of about 189,491 (285)

Tides and the Evolution of Planetary Habitability [PDF]

Astrobiology, 2008
Tides raised on a planet by the gravity of its host star can reduce the planet's orbital semi-major axis and eccentricity. This effect is only relevant for planets orbiting very close to their host stars.
R. Barnes, S. Raymond, B. Jackson, R. Greenberg   +3 more
semanticscholar   +6 more sources

High-Resolution Simulations of The Final Assembly of Earth-Like Planets. 2. Water Delivery And Planetary Habitability [PDF]

Astrobiology, 2007
The water content and habitability of terrestrial planets are determined during their final assembly, from perhaps 100 1,000-km “planetary embryos” and a swarm of billions of 1–10-km “planetesimals.” During this process, we assume that water-rich ...
Sean N. Raymond, Thomas Quinn, Jonathan I. Lunine   +2 more
semanticscholar   +5 more sources

Venus as an anchor point for planetary habitability [PDF]

Nature Astronomy
A major focus of the planetary science and astrobiology community is understanding planetary habitability, including the myriad factors that control the evolution and sustainability of temperate surface environments such as that of Earth.
Stephen R. Kane, P. Byrne
semanticscholar   +3 more sources

MAGNETIC FIELD AND WIND OF KAPPA CETI: TOWARD THE PLANETARY HABITABILITY OF THE YOUNG SUN WHEN LIFE AROSE ON EARTH [PDF]

, 2016
We report magnetic field measurements for κ1 Cet, a proxy of the young Sun when life arose on Earth. We carry out an analysis of the magnetic properties determined from spectropolarimetric observations and reconstruct the large-scale surface magnetic ...
J.-D. do Nascimento, Jr., A. A. Vidotto, P. Petit, C. Folsom, M. Castro, S. C. Marsden, J. Morin, G. F. Porto de Mello, S. Meibom, S. V. Jeffers, E. Guinan, I. Ribas   +11 more
openalex   +3 more sources

Tidal Constraints on Planetary Habitability

, 2009
We review how tides may impact the habitability of terrestrial-like planets. If such planets form around low-mass stars, then planets in the circumstellar habitable zone will be close enough to their host stars to experience strong tidal forces. We discuss 1) decay of semi-major axis, 2) circularization of eccentric orbits, 3) evolution toward zero ...
Barnes, Rory, Jackson, Brian, Greenberg, Richard, Raymond, Sean N., Heller, Rene   +4 more
openaire   +5 more sources

Planetary Habitability

, 2021
S. Kane
semanticscholar   +2 more sources

Planetary Habitability Under the Light of a Rapidly Changing Star

The Astronomical Journal
Planetary atmospheric energy budgets primarily depend on stellar incident flux. However, stellar variability can have major consequences for the evolution of planetary climates. In this work, we evaluate how stellar variability influences the equilibrium
Tara Fetherolf, Sadie G. Welter, Colby M. Ostberg, Stephen R. Kane, Rory Barnes, Emilie R. Simpson   +5 more
doaj   +2 more sources

History and Habitability of the LP 890-9 Planetary System

The Planetary Science Journal
We present numerous aspects of the evolution of the LP 890-9 (SPECULOOS-2/TOI-4306) planetary system, focusing on the likelihood that planet c can support life. We find that the host star reaches the main sequence in 1 Gyr and that planet c lies close to
Rory Barnes, Laura N. R. do Amaral, Jessica Birky, Ludmila Carone, Peter Driscoll, Joseph R. Livesey, David Graham, Juliette Becker, Kaiming Cui, Martin Schlecker, Rodolfo Garcia, Megan Gialluca, Arthur Adams, MD Redyan Ahmed, Paul Bonney, Wynter Broussard, Chetan Chawla, Mario Damasso, William C. Danchi, Russell Deitrick, Elsa Ducrot, Emeline F. Fromont, Brandt A. L. Gaches, Sakshi Gupta, Michelle L. Hill, James A. G. Jackman, Estelle M. Janin, Mikołaj Karawacki, Matheus Daniel Koren, Roberto La Greca, Michaela Leung, Arturo Miranda-Rosete, Michael Kent A. Olohoy, Cecelia Ngo, Daria Paul, Chandan Kumar Sahu, Debajyoti Basu Sarkar, Mohammad Afzal Shadab, Edward W. Schwieterman, Melissa Sedler, Katie Texeira, Allona Vazan, Karen N. Delgado Vega, Rohit Vijayakumar, Jonathan T. Wojack   +44 more
doaj   +2 more sources

Warm, water-depleted rocky exoplanets with surface ionic liquids: A proposed class for planetary habitability. [PDF]

Proc Natl Acad Sci U S A
Agrawal R, Seager S, Iakubivskyi I, Buchanan WP, Glidden A, Seager MD, Bains W, Huang J, Petkowski JJ.   +8 more
europepmc   +3 more sources

Orbital Dynamics and the Evolution of Planetary Habitability in the AU Mic System [PDF]

Astronomical Journal, 2021
The diverse planetary systems that have been discovered are revealing the plethora of possible architectures, providing insights into planet formation and evolution.
S. Kane, B. Foley, M. Hill, C. Unterborn, T. Barclay, B. Cale, E. Gilbert, P. Plavchan, J. Wittrock   +8 more
semanticscholar   +1 more source