Results 71 to 80 of about 15,442 (228)

Formation of Asteroid (16) Psyche by a Giant Impact

Journal of Geophysical Research: Planets, Volume 131, Issue 1, January 2026.
Abstract Asteroid (16) Psyche is the largest likely metal‐rich asteroid in the Solar System and the target of the NASA Psyche mission. The mission aims to determine whether the asteroid is the core of a differentiated planetesimal that lost its mantle via a giant impact.
Saverio Cambioni, Benjamin P. Weiss, Namya Baijal, Robert Melikyan, Erik Asphaug, John B. Biersteker, Richard P. Binzel, William F. Bottke, Samuel W. Courville, Linda T. Elkins‐Tanton, David J. Lawrence, José M. G. Merayo, Carol A. Raymond, Mark A. Wieczorek, Maria T. Zuber   +14 more
wiley   +1 more source

Irradiated Atmospheres. IV. Effect of Mixing Heat Flux on Chemistry

The Astrophysical Journal
Vertical mixing disrupts the thermochemical equilibrium and introduces additional heat flux that alters exoplanetary atmospheric temperatures. We investigate how this mixing-induced heat flux affects atmospheric chemistry.
Zhen-Tai Zhang, Wei Zhong, Wei Wang, Jianheng Guo, Xianyu Tan, Bo Ma, Ruyi Wei, Cong Yu   +7 more
doaj   +1 more source

The LAEX and NASA portals for CoRoT public data [PDF]

, 2009
* Aims. We describe here the main functionalities of the LAEX (Laboratorio de Astrofisica Estelar y Exoplanetas/Laboratory for Stellar Astrophysics and Exoplanets) and NASA portals for CoRoT Public Data.
A. C. Laity, A. N. Payne, A. Velasco, A. Zhang, B. Ali, B. Chan, C. Lau, D. L. McElroy, D. R. Ciardi, E. Solano, Fischer, G. B. Berriman, G. Bryden, Holman, Howell, J. Good, J. R. Stauffer, Jeff, K. von Braun, Kane, L. M. Sarro, M. Abajian, M. García, M. López, M. Schmitz, Mason, O'Donovan, P. L. Wyatt, P. Plavchan, Pepper, Pepper, R. Gutiérrez, Ramirez, S. R. Kane, S. Ramirez, Solano, Tonry, von Braun, von Braun, von Braun   +39 more
core   +2 more sources

Cation Disorder of Mg2SiO4 ${\text{Mg}}_{\mathbf{2}}{\text{SiO}}_{\mathbf{4}}$ in Super‐Earth Mantles

Geophysical Research Letters, Volume 52, Issue 24, 28 December 2025.
Abstract Understanding the mineralogy of exoplanets is essential for unraveling their interior structures, dynamics, and evolution. For large super‐Earths, the post‐post spinel Mg2SiO4 ${\text{Mg}}_{2}{\text{SiO}}_{4}$, one of the major mantle phases, may undergo the order‐disorder transition (ODT) at high temperatures.
Donghao Zheng, Yifan Li, Yihang Peng, Rushi Gong, Zi‐Kui Liu, Jie Deng   +5 more
wiley   +1 more source

Characterizing Exoplanets for Assessing Their Potential Habitability

The Astrophysical Journal
The Statistical-likelihood Exoplanetary Habitability Index (SEPHI) serves as a valuable tool for prioritizing targets for further study and identifying potentially habitable environments.
J. M. Rodríguez-Mozos, A. Moya
doaj   +1 more source

Kepler-1656b: a Dense Sub-Saturn With an Extreme Eccentricity [PDF]

, 2018
Kepler-1656b is a 5 $R_E$ planet with an orbital period of 32 days initially detected by the prime Kepler mission. We obtained precision radial velocities of Kepler-1656 with Keck/HIRES in order to confirm the planet and to characterize its mass and ...
Brady, Madison T., Fulton, Benjamin J., Hirsch, Lea A., Howard, Andrew W., Isaacson, Howard, Knutson, Heather A., Kosiarek, Molly R., Petigura, Erik A., Sinukoff, Evan   +8 more
core   +2 more sources

Extracting starspot structures from exoplanet transit photometry

Astronomy & Astrophysics
Context . Future space-based transit photometry can provide empirical comparisons of solar and stellar spot structures with high precision. Spot transit mapping provides a way to directly observe and characterize the location, size, intensity, and evolution of starspots to infer stellar rotation rates and ...
S. M. Zaleski, A. Valio, B. Carter
openaire   +1 more source

Altitude Profile and Isotopic Composition for N2 From Pioneer Venus Mass Spectra

Geophysical Research Letters, Volume 52, Issue 23, 16 December 2025.
Abstract We report the highest resolution altitude profile and isotopic composition for N2 at Venus, to date. These results were obtained through re‐analysis of data acquired by the Pioneer Venus Large Probe Neutral Mass Spectrometer (LNMS). The N2 is non‐uniformly mixed across the clouds and sub‐cloud atmosphere (∼59–15 km) yet uniformly mixed across ...
R. Mogul, S. S. Limaye, M. J. Way
wiley   +1 more source

Distinguishing Oceans of Water from Magma on Mini-Neptune K2-18b

The Astrophysical Journal Letters
Mildly irradiated mini-Neptunes have densities potentially consistent with them hosting substantial liquid-water oceans (“Hycean” planets). The presence of CO _2 and simultaneous absence of ammonia (NH _3 ) in their atmospheres has been proposed as a ...
Oliver Shorttle, Sean Jordan, Harrison Nicholls, Tim Lichtenberg, Dan J. Bower   +4 more
doaj   +1 more source

Mapping Exoplanets

, 2020
The varied surfaces and atmospheres of planets make them interesting places to live, explore, and study from afar. Unfortunately, the great distance to exoplanets makes it impossible to resolve their disk with current or near-term technology. It is still
A Shporer, AP Showman, B Drummond, BJ Foley, BJ Foley, BJ Foley, BO Demory, C Beichman, C Dorn, C Majeau, C Marois, D Angerhausen, D Apai, D Charbonneau, D Deming, D Höning, D Keating, D Keating, D Sudarsky, D Veras, DJ Armstrong, DM Williams, DS Abbot, E Agol, E Buenzli, E Gaidos, E Pallé, E Rauscher, E Rauscher, EMR Kempton, H Kawahara, H Kawahara, H Kawahara, H Kawahara, HA Knutson, HA Knutson, HM Haggard, HN Russell, I Dobbs-Dixon, I Dobbs-Dixon, I Dobbs-Dixon, I Gómez-Leal, IAG Snellen, IJM Crossfield, J de Wit, J Lustig-Yaeger, JC Schwartz, JC Schwartz, JH Jiang, K Heng, K Mandel, KB Stevenson, L Dang, L Rossi, LJ Esteves, LJ Esteves, M Aizawa, M Brogi, M Roman, MAS McTier, MF Sterzik, NB Cowan, NB Cowan, NB Cowan, NB Cowan, NB Cowan, NB Cowan, NB Cowan, NB Cowan, NB Cowan, NB Cowan, NK Lewis, PGJ Irwin, PHH Oakley, PKG Williams, R Luger, R Luger, S Fan, T Karalidi, T Louden, T Louden, TD Robinson, TD Robinson, TD Robinson, TG Beatty, TJ Bell, V Kostov, V Parmentier, Y Fujii, Y Fujii, Y Fujii, YK Feng   +91 more
core   +1 more source