Results 71 to 80 of about 2,749,091 (142)

HD 206893 B at High Spectral Resolution with the Keck Planet Imager and Characterizer

The Astronomical Journal
We present an atmospheric characterization and orbital analysis of HD 206893 B, an exceptionally red, L/T-transition substellar companion in a multiplanetary system, via Keck Planet Imager and Characterizer (KPIC) high-resolution ( R ∼ 35,000) K- band ...
Ben Sappey, Quinn Konopacky, Clarissa R. Do Ó, Travis Barman, Jean-Baptiste Ruffio, Jason Wang, Christopher A. Theissen, Luke Finnerty, Jerry Xuan, Katelyn Hortsman, Dimitri Mawet, Yapeng Zhang, Julie Inglis, Nicole L. Wallack, Aniket Sanghi, Ashley Baker, Randall Bartos, Geoffrey A. Blake, Charlotte Z. Bond, Benjamin Calvin, Sylvain Cetre, Jacques-Robert Delorme, Greg Doppmann, Daniel Echeverri, Michael P. Fitzgerald, Chih-Chun Hsu, Nemanja Jovanovic, Joshua Liberman, Ronald A. López, Emily C. Martin, Evan Morris, Jacklyn Pezzato-Rovner, Caprice L. Phillips, Garreth Ruane, Tobias Schofield, Andrew Skemer, Taylor Venenciano, J. Kent Wallace, Ji Wang, Peter Wizinowich, Yinzi Xin   +40 more
doaj   +1 more source

Extensive Pollution of Uranus and Neptune’s Atmospheres by Upsweep of Icy Material during the Nice Model Migration

The Astronomical Journal
In the Nice model of Solar System formation, Uranus and Neptune undergo an orbital upheaval, sweeping through a planetesimal disk. The region of the disk from which material is accreted by the ice giants during this phase of their evolution has not ...
Eva Zlimen, Elizabeth Bailey, Ruth Murray-Clay   +2 more
doaj   +1 more source

Bayesian Estimation of Past Astronomical Frequencies, Lunar Distance, and Length of Day From Sediment Cycles

Geochemistry, Geophysics, Geosystems
Astronomical cycles recorded in stratigraphic sequences offer a powerful data source to estimate Earth's axial precession frequency k, as well as the frequency of rotation of the planetary perihelia (gi) and of the ascending nodes of their orbital planes
A. Malinverno, S. R. Meyers
doaj   +1 more source

Understanding the Formation of Saturn's Regular Moons in the Context of Giant Planet Moons Formation Scenarios. [PDF]

Space Sci Rev
Blanc M, Crida A, Shibaike Y, Charnoz S, El Moutamid M, Estrada P, Mousis O, Salmon J, Schneeberger A, Vernazza P.   +9 more
europepmc   +1 more source

Highly Active Oxygen Evolution Integrating with Highly Selective CO₂-to-CO Reduction. [PDF]

Nanomicro Lett
Wang C, Geng L, Bi Y.
europepmc   +1 more source

Tunable multi-electron redox polyoxometalates for decoupled water splitting driven by sunlight. [PDF]

Nat Commun
Cui LP, Zhang S, Zhao Y, Ge XY, Yang L, Li K, Feng LB, Li RG, Chen JJ.   +8 more
europepmc   +1 more source

A magnetohydrodynamic mechanism for the formation of solar polar vortices. [PDF]

Proc Natl Acad Sci U S A
Dikpati M, Raphaldini B, McIntosh SW, Korsos MB, Guerrero GA, Gilman PA.   +5 more
europepmc   +1 more source

Jets Downstream of Collisionless Shocks: Recent Discoveries and Challenges. [PDF]

Space Sci Rev
Krämer E, Koller F, Suni J, LaMoury AT, Pöppelwerth A, Glebe G, Mohammed-Amin T, Raptis S, Vuorinen L, Weiss S, Xirogiannopoulou N, Archer M, Blanco-Cano X, Gunell H, Hietala H, Karlsson T, Plaschke F, Preisser L, Roberts O, Simon Wedlund C, Temmer M, Vörös Z.   +21 more
europepmc   +1 more source

Perspectives on Mars Sample Return: A critical resource for planetary science and exploration. [PDF]

Proc Natl Acad Sci U S A
McSween HY, Hamilton VE, Farley KA.
europepmc   +1 more source

Fundamental constraints and questions from the study of martian meteorites and the need for returned samples. [PDF]

Proc Natl Acad Sci U S A
Udry A, Ostwald AM, Day JMD, Hallis LJ.
europepmc   +1 more source