Results 31 to 40 of about 26,515 (184)

Noble gases and nitrogen in material from asteroid Bennu

Meteoritics &Planetary Science, EarlyView.
Abstract We report the elemental and isotopic abundances of all stable noble gases (helium, neon, argon, krypton, and xenon) in eight particles from asteroid Bennu returned by NASA's OSIRIS‐REx mission. We also report nitrogen abundances and isotopic ratios that were analyzed alongside neon and argon in four additional Bennu particles.
B. Marty, L. Zimmermann, E. Füri, D. V. Bekaert, J. J. Barnes, A. N. Nguyen, H. C. Connolly, D. S. Lauretta   +7 more
wiley   +1 more source

A Scaling Law for the Orbital Architecture of Planetary Systems Formed by Gravitational Scattering and Collisions

The Astrophysical Journal Letters
In the standard formation models of terrestrial planets in the solar system and close-in super-Earths in nonresonant orbits recently discovered by exoplanet observations, planets are formed by giant impacts of protoplanets or planetary embryos after the ...
Eiichiro Kokubo, Haruka Hoshino, Yuji Matsumoto, Re’em Sari   +3 more
doaj   +1 more source

Tidal Dissipation in Stratified and Semi-convective Regions of Giant Planets

The Astrophysical Journal, 2023
We study how stably stratified or semi-convective layers alter the tidal dissipation rates associated with the generation of internal waves in planetary interiors.
Christina M. Pontin, Adrian J. Barker, Rainer Hollerbach   +2 more
doaj   +1 more source

Experimental Design for the Gemini Planet Imager

, 2011
The Gemini Planet Imager (GPI) is a high performance adaptive optics system being designed and built for the Gemini Observatory. GPI is optimized for high contrast imaging, combining precise and accurate wavefront control, diffraction suppression, and a ...
Bruce Macintosh, Christian Marois, Graham J. R., Graham J. R., James McBride, James R. Graham, Lisa A. Poyneer, Liu M. C., Lynden-Bell D., Mayor M., Mihalas D., Sloane J. Wiktorowicz, Steven V. W. Beckwith   +12 more
core   +1 more source

Dynamics of the giant planets of the solar system in the gaseous proto-planetary disk and relationship to the current orbital architecture [PDF]

, 2007
We study the orbital evolution of the 4 giant planets of our solar system in a gas disk. Our investigation extends the previous works by Masset and Snellgrove (2001) and Morbidelli and Crida (2007, MC07), which focussed on the dynamics of the Jupiter ...
Alessandro Morbidelli, Aurélien Crida, Guillot T., Harold F. Levison, Kleomenis Tsiganis, Rodney Gomes, Shakura N. I.   +6 more
core   +4 more sources

Planets Around Solar Twins/Analogs (PASTA). I. High-precision Stellar Chemical Abundances for 17 Planet-hosting Stars and the Condensation Temperature Trend

The Astrophysical Journal
The Sun is depleted in refractory elements compared to nearby solar twins, which may be linked to the formation of giant or terrestrial planets. Here we present high-resolution, high signal-to-noise spectroscopic data for 17 solar-like stars hosting ...
Qinghui Sun, Sharon Xuesong Wang, Tianjun Gan, Chenyang Ji, Zitao Lin, Yuan-Sen Ting, Johanna Teske, Haining Li, Fan Liu, Xinyan Hua, Jiaxin Tang, Jie Yu, Jiayue Zhang, Mariona Badenas-Agusti, Andrew Vanderburg, George R. Ricker, Roland Vanderspek, David W. Latham, Sara Seager, Jon M. Jenkins, Richard P. Schwarz, Tristan Guillot, Thiam-Guan Tan, Dennis M. Conti, Kevin I. Collins, Gregor Srdoc, Chris Stockdale, Olga Suarez, Roberto Zambelli, Don Radford, Khalid Barkaoui, Phil Evans, Allyson Bieryla   +32 more
doaj   +1 more source

Terrestrial Analogs to Titan for Geophysical Research

Reviews of Geophysics, Volume 64, Issue 2, June 2026.
Abstract Saturn's moon Titan exhibits remarkable parallels to the Earth in many geophysical and geological processes not found elsewhere in the solar system at the present day. These include a nitrogen atmosphere with a condensible gas—methane—replacing the Earth's water, leading to an active meteorology with rainfall and surface manifestations ...
Conor A. Nixon, Samuel Birch, Audrey Chatain, Charles Cockell, Kendra K. Farnsworth, Peter M. Higgins, Stéphane Le Mouélic, Rosaly M. C. Lopes, Michael J. Malaska, Mohit Melwani Daswani, Kelly E. Miller, Catherine D. Neish, Olaf G. Podlaha, Jani Radebaugh, Lauren R. Schurmeier, Ashley Schoenfeld, Krista M. Soderlund, Anezina Solomonidou, Christophe Sotin, Nicholas A. Teanby, Tetsuya Tokano, Steven D. Vance   +21 more
wiley   +1 more source

NIRCam Yells at Cloud: JWST MIRI Imaging Can Directly Detect Exoplanets of the Same Temperature, Mass, Age, and Orbital Separation as Saturn and Jupiter

The Astrophysical Journal Letters
NIRCam and MIRI coronagraphy has successfully demonstrated the ability to directly image young sub-Jupiter-mass and mature gas giant exoplanets. However, these modes struggle to reach the sensitivities needed to find the population of cold giant planets ...
Rachel Bowens-Rubin, James Mang, Mary Anne Limbach, Aarynn L. Carter, Kevin B. Stevenson, Kevin Wagner, Giovanni Strampelli, Caroline V. Morley, Grant Kennedy, Elisabeth Matthews, Andrew Vanderburg, Maïssa Salama   +11 more
doaj   +1 more source

Modeling Planetary System Formation with N-Body Simulations: Role of Gas Disk and Statistics Comparing to Observations

, 2011
During the late stage of planet formation when Mars-size cores appear, interactions among planetary cores can excite their orbital eccentricities, speed their merges and thus sculpture the final architecture of planet systems.
Andrews, Armitage, Chatterjee, Fischer, Garaud, Gullbring, Haisch, Huigen Liu, Ida, Ida, Ida, Ida, Ikoma, Ji-Lin Zhou, Johnson, Jurić, Kennedy, Kokubo, Kretke, Kretke, Laughlin, Lee, Lin, Lin, Nagasawa, Ogihara, Rafikov, Safronov, Sano, Shakura, Su Wang, Tanaka, Terquem, Vorobyov, Wang, Wittenmyer, Wright, Zhou, Zhou   +38 more
core   +1 more source

Formation of '3D' multiplanet systems by dynamical disruption of multiple-resonance configurations [PDF]

, 2011
Assuming that giant planets are formed in thin protoplanetary discs, a '3D' system can form, provided that the mutual inclination is excited by some dynamical mechanism.
A.-S. Libert, Adams, Beaugé, Beaugé, Butler, Chatterjee, Cochran, Fabrycky, Ford, Ford, Ford, Jurić, K. Tsiganis, Kozai, Libert, Libert, Libert, Libert, Libert, Marois, Marzari, Matsumura, McArthur, Michtchenko, Moorhead, Morbidelli, Morbidelli, Nagasawa, Rivera, Thommes, Thommes   +30 more
core   +2 more sources