Results 71 to 80 of about 35,447 (292)

Updated High-temperature Opacities for the Dartmouth Stellar Evolution Program and Their Effect on the Jao Gap Location

The Astrophysical Journal, 2023
The Jao Gap, a 17% decrease in stellar density at M _G ∼ 10 identified in both Gaia Data Release 2 and Early Data Release 3, presents a new method to probe the interior structure of stars near the fully convective transition mass.
Thomas M. Boudreaux, Brian C. Chaboyer
doaj   +1 more source

Heavy Quark Radiative Energy Loss in QCD Matter

, 2003
Heavy quark medium induced radiative energy loss is derived to all orders in opacity, $(L/\lambda_g)^n$. The analytic expression generalizes the GLV opacity expansion for massless quanta to heavy quarks with mass $M$ in a QCD plasma with a gluon ...
Accardi, Adams, Adams, Adcox, Adcox, Adcox, Adler, Adler, Adler, Adler, Adler, Arsene, Back, Baier, Baier, Baier, Batsouli, Braaten, Djordjevic, Djordjevic, Dokshitzer, Gunion, Gyulassy, Gyulassy, Gyulassy, Gyulassy, Gyulassy, Gyulassy, Gyulassy, Gyulassy, Gyulassy, Gyulassy, Gyulassy, Levai, Lin, Lin, Magdalena Djordjevic, Miklos Gyulassy, Mustafa, Salgado, Shuryak, Thoma, Thoma, Vitev, Vitev, Wang, Wang, Wang, Wang, Wang, Wang, Wang, Wiedemann, Wiedemann, Zhakharov, Zhang   +55 more
core   +3 more sources

Lead Halide Perovskite Photoelectrocatalysis

Advanced Materials, EarlyView.
Lead halide perovskite semiconductors have emerged as highly promising materials for solar fuel and chemical synthesis. This perspective discusses advances made in the rational photoelectrode design to improve solar‐to‐chemical conversion, product scope, and scalability.
Virgil Andrei
wiley   +1 more source

Strong, Weak and Merging Lines in Atomic Spectra

Plasma
We present analytical estimates for the maximum line strength in a transition array, as well as for the numbers of strong and weak lines. For that purpose, two main assumptions are used as concerns the line strength distribution.
Jean-Christophe Pain
doaj   +1 more source

Exploring wind-driving dust species in cool luminous giants I. Basic criteria and dynamical models of M-type AGB stars

, 2012
This work is part of an ongoing effort aiming at identifying the actual wind-drivers among the dust species observed in circumstellar envelopes. In particular, we focus on the interplay between a strong stellar radiation field and the dust formation ...
Andersen, Begemann, Bertre, Bowen, Dorschner, Ferrarotti, Ferrarotti, Fleischer, Gail, Gail, Gauger, Gautschy-Loidl, Helling, Henning, Herwig, Höfner, Höfner, Jeong, Jäger, Karovicova, Koike, Lattimer, Mattsson, McDonald, Norris, Nowotny, Nowotny, Ordal, Pegourie, Rouleau, S. Bladh, S. Höfner, Sacuto, Winters, Wittkowski, Woitke, Wood, Zeidler   +37 more
core   +1 more source

Hierarchical Structure and Fabrication of Functionally Graded Biointerfaces in the Mussel Byssus

Advanced Materials Interfaces, EarlyView.
The byssus is a fibrous protein‐based holdfast consisting of mechanically distinct interfaces, which mussels use to anchor their soft living tissue to hard seashore surfaces. Here, multiscale methodologies were used to elucidate the compositional and structural features underlying these functionally graded interfaces and how they are fabricated through
Lucia Youssef, Jenaes Sivasundarampillai, Sydney Mikulin, Franziska Jehle, Matthew J. Harrington   +4 more
wiley   +1 more source

Advances in Halide Perovskites for Photon Radiation Detectors

Advanced Materials Technologies, EarlyView.
This work highlights recent progress in perovskite‐based photon radiation detectors, covering organic–inorganic hybrid, inorganic, lead‐free double, and vacancy‐ordered halide perovskites. Their detection performance is compared, material‐specific advantages and challenges are examined, and provides insight into current limitations and future ...
Liangling Wang, Jieqi Wang, Xiaojun Cui, Carsten Ronning   +3 more
wiley   +1 more source

Synchrotron-driven Instabilities in Relativistic Plasmas of Arbitrary Opacity

The Astrophysical Journal
Recent work has shown that synchrotron emission from relativistic plasmas leads the electron distribution to form an anisotropic ring in momentum space, which can be unstable to both kinetic and hydrodynamic instabilities.
Ian E. Ochs
doaj   +1 more source

Coupling of Er3+ ions and Plasmonic Modes in Vertical Nanocavities for Spectral Broadening in Telecom Bands

Advanced Materials Technologies, EarlyView.
Left: Illustration of the glass & nanostructures system and the NIR emission at 1.5 µm, where the colored spheres represent the Er3+ ions within the doped glass. Right: Representation of the Stark splitting of the 4I13/2 and 4I15/2 manifolds of the Er3+, illustrating how the plasmonic modes facilitate the emission from the broader Stark manifold ...
Gaston Lozano Calderón, Víctor Anthony García Rivera, Stéphan Cagnon, Souleymane Toubou Bah, Younès Messaddeq, Euclydes Marega Junior   +5 more
wiley   +1 more source

PyRTlib: an educational Python-based library for non-scattering atmospheric microwave radiative transfer computations [PDF]

Geoscientific Model Development
This article introduces PyRTlib, a new standalone Python package for non-scattering line-by-line microwave radiative transfer simulations. PyRTlib is a flexible and user-friendly tool for computing down- and upwelling brightness temperatures and related ...
S. Larosa, D. Cimini, D. Cimini, D. Gallucci, S. T. Nilo, F. Romano   +5 more
doaj   +1 more source