Results 21 to 30 of about 26,515 (184)

CRIRES+ and ESPRESSO Reveal an Atmosphere Enriched in Volatiles Relative to Refractories on the Ultrahot Jupiter WASP-121b

The Astronomical Journal
One of the outstanding goals of the planetary science community is to measure the present-day atmospheric composition of planets and link this back to formation.
Stefan Pelletier, Björn Benneke, Yayaati Chachan, Luc Bazinet, Romain Allart, H. Jens Hoeijmakers, Alexis Lavail, Bibiana Prinoth, Louis-Philippe Coulombe, Joshua D. Lothringer, Vivien Parmentier, Peter Smith, Nicholas Borsato, Brian Thorsbro   +13 more
doaj   +1 more source

Tidal Dissipation in Stably Stratified and Semiconvective Regions of Rotating Giant Planets: Incorporating Coriolis Forces

The Astrophysical Journal, 2023
We study how stably stratified or semiconvective layers alter tidal dissipation rates associated with the generation of inertial, gravito-inertial, interfacial, and surface gravity waves in rotating giant planets.
Christina M. Pontin, Adrian J. Barker, Rainer Hollerbach   +2 more
doaj   +1 more source

High resolution imaging of young M-type stars of the solar neighborhood: Probing the existence of companions down to the mass of Jupiter

, 2011
Context. High contrast imaging is a powerful technique to search for gas giant planets and brown dwarfs orbiting at separation larger than several AU.
Beust, H., Bonavita, M., Bonnefoy, M., Chauvin, G., Delorme, P., Ehrenreich, D., Lacour, S., Lagrange, A. M.   +7 more
core   +3 more sources

Constraining the presence of giant planets in two-belt debris disk systems with VLT/SPHERE direct imaging and dynamical arguments [PDF]

, 2018
Giant, wide-separation planets often lie in the gap between multiple, distinct rings of circumstellar debris: this is the case for the HR 8799 and HD 95086 systems, and even the solar system where the Asteroid and Kuiper belts enclose the four gas and ...
David, Trevor, Hinkley, Sasha, Kennedy, Grant M., Matthews, Elisabeth, Mawet, Dimitri, Meshkat, Tiffany, Morales, Farisa, Shannon, Andrew, Stapelfeldt, Karl, Sutlieff, Ben, Treves, Sam, Vigan, Arthur, Wickenden, Dawn   +12 more
core   +5 more sources

Governing Positive Energy Districts: The Role of Legitimation and Identity Across Residential and Industrial Contexts

Environmental Policy and Governance, EarlyView.
ABSTRACT Increasing electricity demand from data centres, industrial applications, electric vehicles and domestic heating is creating pressure to develop electricity systems in many parts of the world, but especially in Western countries. In response to challenges such as grid congestion, interconnection queues and climate‐related hazards, network ...
Jussi Valta, Tuomas Vanhanen, Tuomo Joensuu, Saku Mäkinen   +3 more
wiley   +1 more source

A Resonant Beginning for the Solar System’s Terrestrial Planets

The Astrophysical Journal
In the past two decades, transit surveys have revealed a class of planets with thick atmospheres—sub-Neptunes—that must have completed their accretion in protoplanet disks.
Shuo Huang, Chris W. Ormel, Simon Portegies Zwart, Eiichiro Kokubo, Tian Yi   +4 more
doaj   +1 more source

The role of the initial surface density profiles of the disc on giant planet formation: comparing with observations [PDF]

, 2003
In order to explain the main characteristics of the observed population of extrasolar planets and the giant planets in the Solar System, we need to get a clear understanding of which are the initial conditions that allowed their formation. To this end we
Y. Miguel, O. M. Guilera, A. Brunini, Alexander, Alexander, Andrews, Benvenuto, Bodenheimer, Chambers, Clarke, Edgeworth, Fortier, Fortier, Goldreich, Guilera, Haisch, Hartmann, Hayashi, Hillenbrand, Hollenbach, Ida, Ida, Ikoma, Isella, Kokubo, Kuiper, Lammer, Lin, Lin, Lodders, Lynden-Bell, Lyra, Masset, Matsumura, Menou, Miguel, Miguel, Miguel, Mizuno, Mizuno, Mordasini, Nelson, Paardekooper, Safronov, Stevenson, Tanaka, Terquem, Thommes, Toomre, Triaud, Vinkovic, Weidenschilling   +51 more
core   +2 more sources

Mind and Cosmos as Throughput Systems: A Convergence Through the Throughput Model

Systems Research and Behavioral Science, EarlyView.
ABSTRACT This paper advances a conceptual and mathematical foundations approach by applying the throughput model (TPM) to cosmic phenomena, reframing the universe as an extended information processing system. TPM's four stages, Perception, Information, Judgement and Decision Choice, are reformulated in explicit information‐theoretic and dynamical ...
Waymond Rodgers
wiley   +1 more source

Ultracool Dwarfs Observed with the Spitzer Infrared Spectrograph: Equatorial Latitudes in L Dwarf Atmospheres Are Cloudier

The Astrophysical Journal Letters, 2023
We report direct observational evidence for a latitudinal dependence of dust cloud opacity in ultracool dwarfs, indicating that equatorial latitudes are cloudier than polar latitudes.
Genaro Suárez, Johanna M. Vos, Stanimir Metchev, Jacqueline K. Faherty, Kelle Cruz   +4 more
doaj   +1 more source

Planet--planet scattering in circumstellar gas disks

, 2010
Hydrodynamical simulations of two giant planets embedded in a gaseous disk have shown that in case of a smooth convergent migration they end up trapped into a mean motion resonance.
Baruteau, C., Marzari, F., Scholl, H.
core   +5 more sources