Results 51 to 60 of about 3,427 (167)

A Self‐Consistent Model of Radial Transport in the Magnetodisks of Gas Giants Including Interhemispheric Asymmetries

Journal of Geophysical Research: Space Physics, Volume 129, Issue 4, April 2024.
Abstract Outward transport of plasma in the inner and middle magnetospheres of gas giants results from an interplay between mass loading from the inner dominant mass sources (volcanic moons), flux tube interchange in the centrifugally unstable magnetospheric plasma disk, turbulent heating of the plasma, and coupling between the equatorial plasma and ...
Marie Devinat, Michel Blanc, Nicolas André   +2 more
wiley   +1 more source

Spectroscopically Resolved Partial Phase Curve of the Rapid Heating and Cooling of the Highly Eccentric Hot Jupiter HAT-P-2b with WFC3

The Astronomical Journal
The extreme environments of transiting close-in exoplanets in highly eccentric orbits are ideal for testing exoclimate physics. Spectroscopically resolved phase curves not only allow for the characterization of their thermal response to irradiation ...
Bob Jacobs, Jean-Michel Désert, Nikole Lewis, Ryan C. Challener, L. C. Mayorga, Zoë L. de Beurs, Vivien Parmentier, Kevin B. Stevenson, Julien de Wit, Saugata Barat, Jonathan Fortney, Tiffany Kataria, Michael Line   +12 more
doaj   +1 more source

Imaging Cool Giant Planets in Reflected Light: Science Investigations and Synergy with Habitable Planets [PDF]

, 2019
Planned astronomical observatories of the 2020s will be capable of obtaining reflected light photometry and spectroscopy of cool extrasolar giant planets.
Arney, Giada, Bailey, Vanessa, Batalha, Natasha, Beichman, Charles, Benneke, Björn, Blecic, Jasmina, Cahoy, Kerri, Chilcote, Jeffrey, Domagal-Goldman, Shawn, Dressing, Courtney, Fitzgerald, Michael, Fortney, Jonathan, Freedman, Richard, Gelino, Dawn, Gizis, John, Greene, Thomas, Guyon, Olivier, Hammel, Heidi, Hasegawa, Yasuhiro, Jovanovic, Nemanja, Konopacky, Quinn, Kopparapu, Ravi, Lewis, Nikole, Liu, Michael, Lopez, Eric, Lunine, Jonathan, Lupu, Roxana, Macintosh, Bruce, Mandt, Kathleen, Marley, Mark, Marois, Christian, Mawet, Dimitri, Mayorga, Laura, Morley, Caroline, Nielsen, Eric, Roberge, Aki, Serabyn, Eugene, Skemer, Andrew, Stapelfeldt, Karl, Visscher, Channon, Wang, Jason   +40 more
core   +1 more source

Exomoon Phase Curves: Toroidal Exosphere Simulations of Exo‐Ios Orbiting 8 Exoplanets in Alkali Spectroscopy

Journal of Geophysical Research: Planets, Volume 129, Issue 3, March 2024.
Abstract Toroidal atmospheres and exospheres characterized at exoplanets may be fueled by volcanically active exomoons, often referred to as exo‐Ios. We study the neutral outgassing and volatile evolution of a close‐orbiting, evaporating satellite at eight candidate exoplanet‐exomoon systems WASP‐49,‐96,‐69,‐17 b, XO‐2N b, HAT‐P‐1 b, HD‐189733 b, and ...
M. Meyer zu Westram, A. V. Oza, A. Galli
wiley   +1 more source

No Evidence for a Metallicity-dependent Enhancement of Distant Giant Companions to Close-in Small Planets in the California Legacy Survey

The Astronomical Journal
Understanding the relationship between close-in small (CS) planets and distant giants (DGs) is central to understanding the formation of planetary systems like our own.
Judah Van Zandt, Erik A. Petigura
doaj   +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

Core-Accretion Model Predicts Few Jovian-Mass Planets Orbiting Red Dwarfs

, 2004
The favored theoretical explanation for giant planet formation -- in both our solar system and others -- is the core accretion model (although it still has some serious difficulties). In this scenario, planetesimals accumulate to build up planetary cores,
Fred C. Adams, Gregory Laughlin, Hubickyj O., Peter Bodenheimer, Sozzetti A.   +4 more
core   +2 more sources

The Gap–Giant Association: Are Planets Hiding in the Gaps?

The Astrophysical Journal
A handful of stars are known to host both an inner system of multiple transiting planets and an outer giant planet. These systems all feature a prominent gap between the orbits of two of the transiting planets, distinguishing them from typical ...
Caleb Lammers, Joshua N. Winn
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

Comparing key compositional indicators in Jupiter with those in extra-solar giant planets [PDF]

, 2019
Spectroscopic transiting observations of the atmospheres of hot Jupiters around other stars, first with Hubble Space Telescope and then Spitzer, opened the door to compositional studies of exoplanets.
Bean, J., Beichman, C., Greene, T., Hammel, H. B., Lunine, J. I., Marley, M. S.   +5 more
core   +1 more source