Results 41 to 50 of about 34,048 (260)

Opacity Effects on Pulsations of Main-Sequence A-Type Stars

Atoms, 2018
Opacity enhancements for stellar interior conditions have been explored to explain observed pulsation frequencies and to extend the pulsation instability region for B-type main-sequence variable stars.
Joyce A. Guzik, Christopher J. Fontes, Chris Fryer   +2 more
doaj   +1 more source

Physical Retrieval of Rain Rate from Ground-Based Microwave Radiometry

Remote Sensing, 2021
Because of its clear physical meaning, physical methods are more often used for space-borne microwave radiometers to retrieve the rain rate, but they are rarely used for ground-based microwave radiometers that are very sensitive to rainfall.
Wenyue Wang, Klemens Hocke, Christian Mätzler   +2 more
doaj   +1 more source

Instabilities in the Envelopes and Winds of Very Massive Stars

, 2014
The high luminosity of Very Massive Stars (VMS) means that radiative forces play an important, dynamical role both in the structure and stability of their stellar envelope, and in driving strong stellar-wind mass loss.
A. A. Belyanin, A. Feldmeier, A. Feldmeier, A. J. Marle van, A. Pauldrach, A. S. Eddington, A. W. Fullerton, C. A. Iglesias, C. D. Levermore, C. F. Gammie, D. F. Figer, D. H. Cohen, E. A. Spiegel, E. A. Spiegel, E. A. Spiegel, E. T. Vishniac, G. C. Pomraning, J. Arons, J. C. B. Papaloizou, J. I. Castor, J. O. Sundqvist, J. O. Sundqvist, J. Petrovic, K. B. MacGregor, K. G. Gayley, L. B. Lucy, L. B. Lucy, L. Dessart, L. M. Oskinova, M. C. Begelman, M. C. Runacres, M. S. Oey, N. Grevesse, N. J. Shaviv, N. J. Shaviv, N. J. Shaviv, N. Smith, N. Smith, N. Smith, O. Blaes, P. A. Crowther, P. C. Joss, R. Kippenhahn, R. P. Kudritzki, S. P. Owocki, S. P. Owocki, S. P. Owocki, S. P. Owocki, S. P. Owocki, S. P. Owocki, T. Quinn, V. V. Sobolev, W. Glatzel, W. Glatzel   +53 more
core   +1 more source

Estimation of the radiation budget during MOSAiC based on ground-based and satellite remote sensing observations [PDF]

Atmospheric Chemistry and Physics
An accurate representation of the radiation budget is essential for investigating the impact of clouds on the climate system, especially in the Arctic, an environment highly sensitive to complex and rapid environmental changes.
C. Barrientos-Velasco, C. Barrientos-Velasco, C. J. Cox, H. Deneke, J. B. Dodson, A. Hünerbein, M. D. Shupe, M. D. Shupe, P. C. Taylor, A. Macke   +9 more
doaj   +1 more source

Analytical expressions for radiative opacities of low Z plasmas

Journal of Physics: Conference Series, 2010
In this work we obtain analytical expressions for the radiative opacity of several low Z plasmas (He, Li, Be, and B) in a wide range of temperatures and densities. These formulas are obtained by fitting the proposed expression to mean opacities data calculated by using the code ABAKO/ RAPCAL. This code computes the radiative properties of plasmas, both
Garcia Rubiano, Jesus, Martel, Pablo, Gil, J.M., Rodríguez, Rafael y Gil, Florido, Ricardo, Mendoza, M.A., Mínguez Torres, Emilio   +6 more
openaire   +3 more sources

Important consequences of atomic diffusion inside main-sequence stars: opacities, extra-mixing, oscillations

EPJ Web of Conferences, 2017
Atomic diffusion, including the effects of radiative accelerations on individual elements, leads to important variations of the chemical composition inside stars.
Deal M., Vauclair S., Richard O.
doaj   +1 more source

Constraints on the opacity profile of the sun from helioseismic observables and solar neutrino flux measurements

, 2010
Motivated by the solar composition problem and by using the recently developed Linear Solar Model approach, we analyze the role of opacity and metals in the sun.
Asplund, Bahcall, Caffau, F. L. Villante, Pena-Garay, Serenelli, Taoso, Tripathy, Villante, Villante, Villante   +10 more
core   +1 more source

An Expanded Set of Los Alamos OPLIB Tables in MESA: Type-1 Rosseland-mean Opacities and Solar Models

The Astrophysical Journal
We present a set of 1194 Type-1 Rosseland-mean opacity tables for four different metallicity mixtures. These new Los Alamos OPLIB atomic radiative opacity tables are an order of magnitude larger in number than any previous opacity table release, and span
Ebraheem Farag, Christopher J. Fontes, F. X. Timmes, Earl P. Bellinger, Joyce A. Guzik, Evan B. Bauer, Suzannah R. Wood, Katie Mussack, Peter Hakel, James Colgan, David P. Kilcrease, Manolo E. Sherrill, Tryston C. Raecke, Morgan T. Chidester   +13 more
doaj   +1 more source

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

High‐Performance Low‐Emissivity Paints Enabled by N‐Doped Poly(benzodifurandione) (n‐PBDF) for Energy‐Efficient Buildings

Advanced Functional Materials, EarlyView.
This study introduces a scalable and colored low‐emissivity (low‐e) paint achieved by spraying an ultrathin n‐doped poly(benzodifurandione) (n‐PBDF) coating onto various colored substrates. The low‐e paint enhances thermal regulation by reducing mid‐infrared thermal emissivity to 0.19, thereby stabilizing indoor temperatures across diverse climates ...
Xiaojie Liu, Won‐June Lee, Daniel William Carne, Yanpei Tian, Andrea Felicelli, Yue Lei, Joseph A. Romo, Liyan You, Zixin Xiong, Orlando Gabriel Rivera Gonzalez, Abdulrahman Aljwirah, Qiaoqiang Gan, Jianguo Mei, Xiulin Ruan   +13 more
wiley   +1 more source