Results 71 to 80 of about 240,920 (191)

Mars' Hemispheric Magnetic Field From a Full‐Sphere Dynamo

Geophysical Research Letters
Seismic measurements from the NASA Mars InSight mission revealed that Mars' core has a relatively low density, implying a larger fraction of lighter elements than previously thought, which further leads to a low melting temperature.
C. Yan, A. Barik, S. Stanley, A. Mittelholz, A.‐C. Plesa, C.‐L. Johnson   +5 more
doaj   +1 more source

Long extra-tropical planetary wave propagation in the presence of slowly varying mean flow and bottom topography. II: ray propagation and comparison with observations [PDF]

, 2003
Ray theory is used to predict phase and group velocities for long planetary waves under realistic, albeit slowly varying, oceanic conditions. The results are compared with local theory using fields smoothed to the same amount (9° latitude/longitude) as ...
Killworth, Peter D., Marchesiello, Patrick, Blundell, Jeffrey R., Killworth, P.D., Peter D. Killworth, Shchepetkin, Alexander, Mcwilliams, James, C., Jeffrey R. Blundell, Blundell, J.R.   +8 more
core   +1 more source

Asteroseismic Characterization of 142 Solar-like Oscillators Hosting Confirmed Exoplanets

The Astrophysical Journal Supplement Series
We present the largest catalog of exoplanet host stars with solar-like oscillations compiled to date, providing a powerful resource for refining stellar and planetary characterization via asteroseismology.
Wen-Xu Lin, Sheng-Bang Qian, Li-Ying Zhu, Fu-Xing Li, Qi-bin Sun, Wen-Ping Liao, Ping Li, Xiang-Dong Shi, Ting Li   +8 more
doaj   +1 more source

A remnant planetary core in the hot-Neptune desert

, 2020
The interiors of giant planets remain poorly understood. Even for the planets in the Solar System, difficulties in observation lead to large uncertainties in the properties of planetary cores.
Armstrong, David J., Jensen, Eric L. N., Winn, Joshua N., Barros, Susana C. C., Sousa, Sérgio G., Pollacco, Don, West, Richard G., Demangeon, Olivier D. S., Acton, Jack S., Mena, Elisa Delgado, Cooke, Benjamin F., Latham, David W., Burleigh, Matthew R., Howell, Steve B., Rowden, Pamela, Collins, Kevin I., Mordasini, Christoph, Adibekyan, Vardan, Mousis, Olivier, Goad, Michael R., Zhan, Zhuchang, Lozovsky, Michael, Chaushev, Alexander, Ciardi, David R., Crossfield, Ian J. M., Fausnaugh, Michael, Huang, Chelsea X., Belardi, Claudia, Seager, Sara, Ziegler, Carl, Casewell, Sarah L., Veras, Dimitri, Hojjatpanah, Saeed, Wheatley, Peter, Gonzales, Erica J., Gill, Samuel, Sha, Lizhou, Díaz, Rodrigo F., Deleuil, Magali, Ting, Eric, Collins, Karen A., Queloz, Didier, Tilbrook, Rosanna H., Tan, Thiam-Guan, Booth, Richard A., Gandhi, Siddharth, Briceño, César, Jackman, James, Watson, Christopher A., Bryant, Edward M., Bouchy, Francois, Emsenhuber, Alexandre, Lillo-Box, Jorge, Vines, Jose I., Colón, Knicole D., Gan, Tianjun, Barrado, David, Brown, David J. A., Osborn, Ares, Anderson, David R., Dorn, Caroline, Lendl, Monika, Mann, Andrew W., Jenkins, Jon M., Schlieder, Joshua E., Lissauer, Jack J., Osborn, Hugh, Meru, Farzana, Villasenor, Jesus Noel, Lopez, Théo A., Günther, Maximilian N., McCormac, James, Santerne, Alexandre, Bayliss, Daniel, Eigmüller, Philipp, Moyano, Maximiliano, Figueira, Pedro, Law, Nicholas, Kennedy, Grant M., Otegi, Jon, Stassun, Keivan G., Santos, Nuno C., Ricker, George R., Wilson, Paul A., Raynard, Liam, King, George W., Matthews, Elisabeth, Brogi, Matteo, Nielsen, Louise D., Vanderspek, Roland, Almenara, Jose M., Jenkins, James S., Helled, Ravit, Udry, Stéphane, Dumusque, Xavier   +94 more
core   +1 more source

High pressure studies of planetary matter [PDF]

, 1989
Those materials which are of greatest interest to the physics of the deep planetary interiors are Fe, H/sub 2/, He and the Ices. These are sufficiently diverse and intensively studied to offer an overview of present day high pressure research.
Ross, M.
core  

Puzzles in Planetary Dynamos: Implications for Planetary Interiors

Annual Review of Earth and Planetary Sciences
Intrinsic magnetic fields were once commonplace across our Solar System, and many planetary bodies have sustained active dynamos to the present day. The nature and behavior of these dynamos vary widely, however, reflecting the diverse internal conditions of planets as summarized in this review.
Krista M. Soderlund, Sabine Stanley, Hao Cao, Michael A. Calkins, Matthew K. Browning   +4 more
openaire   +1 more source

The Fuzzy Cores of Jupiter and Saturn

AGU Advances
New interior models of Jupiter and Saturn suggest that both planets have “fuzzy cores.” These cores should be viewed as central regions that are enriched with heavy elements but are not distinct from the rest of the deep interior. These cores may contain
Ravit Helled, David J. Stevenson
doaj   +1 more source

Igneous processes in the small bodies of the Solar System II: Small satellites and dwarf planets

iScience
Summary: Evidence of hot and cold igneous processes has been reported in small satellites and dwarf planets of the Solar System. Olivine and pyroxenes were detected in the spectral bands of both small satellites and dwarf planets.
Giovanni Leone, Hiroyuki Tanaka
doaj   +1 more source

Effects of magmatic styles on the thermal evolution of planetary interiors [PDF]

Previous studies have suggested that extrusive magmatism efficiently cools planetary interiors but the contribution by intrusive magmatism has been little investigated so far. We study the effects of the magmatic style (i.e., intrusive vs.
Maia, Julia, Breuer, Doris, Plesa, Ana-Catalina, Herrera, Carianna   +3 more
core   +1 more source

JWST Exoplanetary Worlds and Elemental Survey (JEWELS). I. High-precision Chemical Abundances of 20 FGK Planet-hosting Stars from JWST Cycle 2

The Astrophysical Journal Supplement Series
We present high-precision chemical abundances for 20 FGK stars hosting planets observed in JWST Cycle 2 GO programs. Using high-resolution, high-signal-to-noise ratio spectra from the ESO and Keck archives, we perform a strict line-by-line differential ...
Qinghui Sun
doaj   +1 more source