Results 21 to 30 of about 123,043 (207)

Exoplanets around Red Giants: Distribution and Habitability

Galaxies, 2023
As the search for exoplanets continues, more are being discovered orbiting Red Giant stars. We use current data from the NASA Exoplanet Archive to investigate planet distribution around Red Giant stars and their presence in the host’s habitable zone.
Ruixuan E. Chen, Jonathan H. Jiang, Philip E. Rosen, Kristen A. Fahy, Yanbei Chen   +4 more
doaj   +1 more source

Survival of habitable planets in unstable planetary systems

, 2016
Many observed giant planets lie on eccentric orbits. Such orbits could be the result of strong scatterings with other giant planets. The same dynamical instability that produces these scatterings may also cause habitable planets in interior orbits to ...
Carrera, Daniel, Davies, Melvyn B., Johansen, Anders   +2 more
core   +1 more source

Extrasolar planet population synthesis IV. Correlations with disk metallicity, mass and lifetime

, 2012
Context. This is the fourth paper in a series showing the results of planet population synthesis calculations. Aims. Our goal in this paper is to systematically study the effects of important disk properties, namely disk metallicity, mass and lifetime ...
Alexander, Alibert, Alibert, Alibert, Alibert, Ammler-von Eiff, Andrews, Andrews, Armitage, Baraffe, Baumann, Beckwith, Boley, Bonavita, Bouvier, Bowler, C. Mordasini, Cochran, Cochran, Currie, da Silva, Dodson-Robinson, Dodson-Robinson, Dodson-Robinson, Dzyurkevich, Fang, Fedele, Fischer, Fuhrmann, Ghezzi, Ghezzi, Gonzalez, Gonzalez, Greaves, H. Klahr, Haisch, Hale, Han, Hartmann, Hayashi, Howard, Ida, Ida, Ida, Ida, Ida, Ikoma, Israelian, Kennedy, Kley, Kornet, Kornet, Kornet, Latham, Lin, Lissauer, Lissauer, Lodders, Lovis, Lubow, Lyra, Mamajek, Marcus, Marois, Marois, Masset, Matsuo, Matsuyama, Mayor, McCaughrean, McKee, Miller, Min, Mordasini, Mordasini, Mordasini, Movshovitz, Niedzielski, Paardekooper, Pasquini, Pollack, Reffert, Sandor, Santos, Santos, Santos, Santos, Schlaufman, Scott, Setiawan, Sousa, Sousa, Sousa, Sozzetti, Sozzetti, Syer, T. Henning, Tanaka, Thommes, Udry, Udry, Udry, Udry, Valenti, Veras, W. Benz, Wyatt, Y. Alibert   +107 more
core   +3 more sources

Discovery and Dynamics of the Nontransiting Planet Kepler-139f

The Astrophysical Journal Letters
Among the ways that an outer giant planet can alter the architecture of an inner planetary system is by tilting the orbits of the inner planets and reducing their mutual transit probabilities.
Caleb Lammers, Joshua N. Winn
doaj   +1 more source

No evidence of a hot Jupiter around HD 188753 A [PDF]

, 2007
The discovery of a short-period giant planet (a hot Jupiter) around the primary component of the triple star system HD 188753 has often been considered as an important observational evidence and as a serious challenge to planet-formation theories ...
A. Eggenberger, Baranne, Boss, Delfosse, Delfosse, Eggenberger, Els, Forveille, Griffin, Hatzes, Jang-Condell, Konacki, Konacki, Lagrange, M. Mayor, Mayer, Mazeh, Mugrauer, Mugrauer, Nelson, Neuhäuser, Perrier, Pfahl, Pfahl, Pickles, Portegies Zwart, Queloz, Raghavan, S. Udry, Söderhjelm, T. Mazeh, Torres, Wilson, Y. Segal, Zucker, Zucker, Zucker   +36 more
core   +3 more sources

Interior and Evolution of the Giant Planets

Remote Sensing, 2023
The giant planets were the first to form and hold the key to unveiling the solar system’s formation history in their interiors and atmospheres.
Yamila Miguel, Allona Vazan
doaj   +1 more source

Formation of ammonia–helium compounds at high pressure

Nature Communications, 2020
Helium is generally considered too inert to be present in giant ice planet mantles. The authors, by first-principles calculations and crystal structure searches, find stable ammonia–helium compounds at the conditions of Uranus and Neptune’s upper mantles,
Jingming Shi, Wenwen Cui, Jian Hao, Meiling Xu, Xianlong Wang, Yinwei Li   +5 more
doaj   +1 more source

The debris disk - terrestrial planet connection

, 2011
The eccentric orbits of the known extrasolar giant planets provide evidence that most planet-forming environments undergo violent dynamical instabilities.
Amaya Moro-Martín, Avi M. Mandell, Fogg, Franck Selsis, John C. Armstrong, Mark Booth, Mark C. Wyatt, Mayor, Philip J. Armitage, Sean N. Raymond, Zakamska   +10 more
core   +3 more sources

Interpreting the yield of transit surveys: Are there groups in the known transiting planets population? [PDF]

, 2009
Each transiting planet discovered is characterized by 7 measurable quantities, that may or may not be linked together (planet mass, radius, orbital period, and star mass, radius, effective temperature, and metallicity).
Alonso, Alonso, Bakos, Barge, Bouchy, Bouchy, Bouchy, Burke, Charbonneau, Charbonneau, Duquennoy, F. Fressin, Fischer, Fressin, Gaudi, Gaudi, Gillon, Gillon, Guillot, Guillot, Guillot, Hansen, Holman, Knutson, Kovács, L. Nesta, Mandushev, Mazeh, McCullough, Minniti, Nordström, O'Donovan, O'Donovan, Pont, Pont, Pont, Pont, Robin, Santos, Sato, Smith, Southworth, Sozzetti, T. Guillot, Torres, Torres, Torres, Udalski, Winn, Winn, Winn, Winn   +51 more
core   +9 more sources

The Collisional Evolution of the Primordial Kuiper Belt, Its Destabilized Population, and the Trojan Asteroids

The Planetary Science Journal, 2023
The tumultuous early era of outer solar system evolution culminated when Neptune migrated across the primordial Kuiper Belt (PKB) and triggered a dynamical instability among the giant planets.
William F. Bottke, David Vokrouhlický, Raphael Marschall, David Nesvorný, Alessandro Morbidelli, Rogerio Deienno, Simone Marchi, Luke Dones, Harold F. Levison   +8 more
doaj   +1 more source