Results 81 to 90 of about 364,262 (268)

Thermal Conduction in Laser‐Driven Tin Plasmas and the Sensitivity of Plasma Properties to the Flux Limiter

Contributions to Plasma Physics, EarlyView.
ABSTRACT We study the role of thermal conduction in laser‐produced tin plasma sources of extreme ultraviolet (EUV) light using radiation‐hydrodynamic simulations. Adopting the flux‐limited Spitzer–Härm approach, we investigate the sensitivity of the electron temperature, electron density, net in‐band emissivity, and conversion efficiency to the choice ...
S. Aggarwal, J. Gonzalez, S. J. J. de Lange, J. Sheil   +3 more
wiley   +1 more source

Mathematics and explanation in astronomy and astrophysics [PDF]

, 2007
The purpose of this paper is to expound and clarify the mathematics and explanations commonly employed in certain notable areas of astronomy and astrophysics.
McCabe, Gordon, Gordon Mccabe
core  

Coupling Selective Organic Oxidation With Hydrogen Evolution Over Metal Halide Perovskite Photocatalysts: Halide‐Dependent Design, Mechanisms, and Stability Challenges

EcoEnergy, EarlyView.
This Review highlights how metal halide perovskites enable coupled selective organic oxidation and hydrogen evolution under visible light. It summarizes halide‐dependent design principles, surface engineering strategies, reaction mechanisms, and stability challenges, providing guidance for developing efficient and durable photocatalytic systems ...
Jutarat Jitrada, Lizhen Liu, Patchanita Thamyongkit, Yanfa Yan, Jun Huang   +4 more
wiley   +1 more source

Interferometry and synthesis in radio astronomy [PDF]

, 2017
This book is open access under a CC BY-NC 4.0 license. The third edition of this indispensable book in radio interferometry provides extensive updates to the second edition, including results and technical advances from the past decade; discussion of ...
Moran, James M, Thompson, A Richard, Moran, James M., Swenson Jr , George W, George W. Swenson, Thompson, A. Richard, James M. Moran, A. Richard Thompson, Swenson, George W.   +8 more
core   +1 more source

From Planar to 3D Nanophotonic Lenses: Advancing Design, Fabrication, and Applications

Laser &Photonics Reviews, EarlyView.
Three‐dimensional nanophotonic lenses are enabled by an integrated workflow that links design parameterization, full‐wave electromagnetic simulation, computational optimization, and freeform fabrication. This Review summarizes how these tools expand optical design freedom beyond a single patterned plane by enriching the local meta‐atom response and ...
Wei Zhu, Lyudmila V. Goncharova, Eric Johlin   +2 more
wiley   +1 more source

The Mega-MUSCLES Treasury Survey: X-Ray to Infrared Spectral Energy Distributions of a Representative Sample of M Dwarfs

The Astrophysical Journal
We present 5–1 × 10 ^7 Å spectral energy distributions (SEDs) for 12 M dwarf stars covering spectral types M0–M8. Our SEDs are provided for community use as a sequel to the Measurements of the Ultraviolet Spectral Characteristics of Low-mass Exoplanetary
David J. Wilson, Cynthia S. Froning, Girish M. Duvvuri, Allison Youngblood, Kevin France, Alexander Brown, P. Christian Schneider, Zachory Berta-Thompson, Andrea P. Buccino, Jeffrey Linsky, R. O. Parke Loyd, Yamila Miguel, Elisabeth Newton, J. Sebastian Pineda, Seth Redfield, Aki Roberge, Sarah Rugheimer, Mariela C. Vieytes   +17 more
doaj   +1 more source

Amateur Astronomy and Astronomy Education in India

, 2015
In India, astronomy has been studied from the beginning of civilization. The word amateur means involvement in work for pleasure rather than as a profession. So, amateur astronomers, in many places, prefer to be called non-professional astronomers.
Chatterjee, Somenath
core   +1 more source

Reconfigurable Geometric Phase Matching by Multilayered Nonlinear Thin‐Film Crystals

Laser &Photonics Reviews, EarlyView.
The concept of geometric phase matching is demonstrated as a dynamically reconfigurable approach for tunable nonlinear wave mixing in multilayered nonlinear thin‐film crystals. Experimental results reveal full modulation in a bilayer structure and near‐perfect spin‐selective phase matching of second‐harmonic generation in an eight‐layer configuration ...
Danielle Ben‐Haim, Mai Tal, Xiaoxi Xu, Tal Ellenbogen   +3 more
wiley   +1 more source

Astronomy is a collaborative effort (The Real Astronomy)

, 2009
Professional Astronomers talk about the importance of collaborations for astronomy. Many astronomy projects are now so large in scope that they are often conducted in large teams.
Centre for Astrophysics and Supercomputing
core   +1 more source

The 2023 Flight of the Faint Intergalactic-medium Redshifted Emission Balloon

The Astrophysical Journal Supplement Series
The second iteration of the Faint Intergalactic-medium Redshifted Emission Balloon (FIREBall-2) is a UV multiobject spectrograph designed to detect emission from the circumgalactic and circumquasar medium at low redshifts ( z < 1).
Drew M. Miles, Vincent Picouet, Zeren Lin, Ignacio Cevallos-Aleman, David Schiminovich, Nicolas Bray, Charles-Antoine Chevrier, Greyson Davis, Erika Hamden, Keri Hoadley, D. Christopher Martin, Bruno Milliard, Johan Montel, David Valls-Gabaud, Simran Agarwal, Philippe Balard, Patrick Blanchard, Harrison Bradley, Haeun Chung, Marty Crabill, Fernando Cruz Aguirre, Xihan Deng, Fabien Harmand, Catherine Hourtolle, Olivia Jones, Nazende I. Kerkeser, Aafaque R. Khan, Gillian Kyne, Jessica S. Li, Nicole Melso, Shouleh Nikzad, Julie Richard, Meghna Sitaram, Jared Termini, Jean-Noel Valdivia, Didier Vibert, Matthew Werneken   +36 more
doaj   +1 more source