Results 111 to 120 of about 4,400 (313)

JWST Directly Images Giant Planet Candidates Around Two Metal-polluted White Dwarf Stars

The Astrophysical Journal Letters
We report the discovery of two directly imaged, giant planet candidates orbiting the metal-rich, hydrogen atmosphere white dwarfs WD 1202−232 and WD 2105−82. JWST’s Mid-Infrared Instrument (MIRI) data on these two stars show a nearby resolved source at a
Susan E. Mullally, John Debes, Misty Cracraft, Fergal Mullally, Sabrina Poulsen, Loic Albert, Katherine Thibault, William T. Reach, J. J. Hermes, Thomas Barclay, Mukremin Kilic, Elisa V. Quintana   +11 more
doaj   +1 more source

Lithium destruction and production observed in red giant stars [PDF]

, 2012
S. Uttenthaler, T. Lebzelter, M. Busso, S. Palmerini, B. Aringer, M. Schultheis   +5 more
openalex   +1 more source

Archeo‐Inspiration from the Cultural History of Glass: Historic Accounts, Anecdotes and Hard Facts as Challenges to Modern Material Science

Advanced Materials, EarlyView.
Glass, historically valued for its purity and durability, has long inspired artists and societies. This article introduces the concept of “Archeo‐Inspiration”, drawing on cultural and historical contexts of glass to guide future material innovations.
Eva von Contzen, Julia von Ditfurth, Fabian Stroth, Bastian E. Rapp   +3 more
wiley   +1 more source

Three-dimensional hydrodynamical CO⁵BOLD model atmospheres of red giant stars [PDF]

, 2012
H.‐G. Ludwig, A. Kučinskas
openalex   +1 more source

Tracking the Evolution of Lithium in Giants Using Asteroseismology: Super-Li-rich Stars Are Almost Exclusively Young Red-clump Stars [PDF]

, 2021
Raghubar Singh, Bacham E. Reddy, S. W. Campbell, Yerra Bharat Kumar, Mathieu Vrard   +4 more
openalex   +1 more source

Giant Berry‐phase‐Driven X‐Ray Beam Translations in Strain‐Engineered Semiconductor Crystals

Advanced Materials, EarlyView.
Due to the Berry‐phase effect, X‐rays propagating in deformed crystals undergo large translations, interesting for X‐ray optics applications. Here, the lattice expansion observed upon H irradiation of dilute‐nitride semiconductors is exploited to engineer the deformation landscape of selectively hydrogenated GaAsN epilayers.
Marco Felici, Giorgio Pettinari, Michela Fratini, Luisa Barba, Simone Birindelli, Gaetano Campi, Silvia Rubini, Tobias Schülli, Mario Capizzi, Antonio Polimeni   +9 more
wiley   +1 more source

Keck Spectroscopy of Red Giant Stars in the Vicinity of M31'sMassive Globular Cluster G1 [PDF]

, 2004
David B. Reitzel, Puragra Guhathakurta, R. Michael Rich   +2 more
openalex   +1 more source

Atomistic Mechanisms Triggered by Joule Heating Effects in Metallic Cu‐Bi Nanowires for Spintronics

Advanced Materials, EarlyView.
Bi doped metallic Cu nanowires are promising for spintronics thanks to the stabilization of a giant spin Hall effect. However, heat resulting from current injection forces Bi to leave solution, forcing segregation into monoatomic decorations which evolve into coherent crystalline aggregates.
Alejandra Guedeja‐Marrón, Juan Ignacio Beltrán, Matilde Saura‐Múzquiz, Paolo Perna, M. Carmen Muñoz, Lucas Pérez, Maria Varela   +6 more
wiley   +1 more source

Can Life Develop in the Expanded Habitable Zones around Red Giant Stars? [PDF]

, 2005
Bruno Lopez, Jean Schneider, William C. Danchi   +2 more
openalex   +1 more source

COFs on MOFs: Layer‐by‐Layer Synthesis of MOF@COF Nanoparticles with Synergistic Adsorption

Advanced Materials, EarlyView.
A layer‐by‐layer strategy enables the growth of crystalline covalent organic framework (COF) shells on metal–organic framework nanoparticles, creating core–shell structures with tunable porosity. Ordered interstitial mesopores are formed during shell growth, which are connected with the COF's intrinsic micropores, thereby enhancing water sorption. This
Ana Guillem‐Navajas, Lucía Torrico‐García‐Viso, Jose Antonio Suárez del Pino, Nekane Aramburu‐Merino, Pilar Segovia, Enrique G. Michel, Josep Puigmartí‐Luis, Enrique Velasco, Pedro Tarazona, Daniel Maspoch, David Rodríguez‐San‐Miguel, Félix Zamora   +11 more
wiley   +1 more source