Results 31 to 40 of about 35,066 (146)

Energy Landscapes in Chemical Reactions and Transport

ChemPhysChem, Volume 26, Issue 6, March 15, 2025.
Kinetics/dynamics of chemical reactivity and transport of chemical species in a solid are both determined by the energy landscape in which they take place. Discussing common grounds but also distinct differences may help in advancing the understanding in both fields.
Karl‐Michael Weitzel
wiley   +1 more source

SOFIA and ALMA Investigate Magnetic Fields and Gas Structures in Massive Star Formation: The Case of the Masquerading Monster in BYF 73

The Astrophysical Journal, 2023
We present Stratospheric Observatory For Infrared Astronomy (SOFIA) + Atacama Large Millimeter/submillimeter Array (ALMA) continuum and spectral-line polarization data on the massive molecular cloud BYF 73, revealing important details about the magnetic ...
Peter J. Barnes, Stuart D. Ryder, Giles Novak, Richard M. Crutcher, Laura M. Fissel, Rebecca L. Pitts, William J. Schap III   +6 more
doaj   +1 more source

Plasma Production by Laser Ablation of Heavy Metals

Contributions to Plasma Physics, EarlyView.
ABSTRACT An Nd:YAG focused laser operating at 1064 nm, 3 ns pulse width, 360 mJ pulse energy, is employed to irradiate heavy metals, such as Ta, W, Pt, Au, and Pb. The in‐vacuum irradiation produces an expanding plasma at the target surface which has high density, temperature, and kinetic energy of emitted ions. Ions have a velocity of the order of 104 
L. Torrisi, M. Cutroneo, A. Torrisi
wiley   +1 more source

Dispersal of Galactic Magnetic Fields into Intracluster Space

, 2011
Little is known about the origin and basic properties of magnetic fields in clusters of galaxies. High conductivity in magnetized interstellar plasma suggests that galactic magnetic fields are (at least partly) ejected into intracluster (IC) space by the
Arieli, Arieli, Beck, Bryan, Clarke, Kenney, Kenney, Kronberg, Mathews, Mike L. Norman, Newman, Rephaeli, Roettiger, Ruzmaikin, Sun, Willson, Xu, Xu, Yinon Arieli, Yoel Rephaeli   +19 more
core   +1 more source

Two Types of q$$ q $$‐Gaussian Distributions Used to Study the Diffusion in a Finite Region

Mathematical Methods in the Applied Sciences, EarlyView.
ABSTRACT In this work, we explore both the ordinary q$$ q $$‐Gaussian distribution and a new one defined here, determining both their mean and variance, and we use them to construct solutions of the q$$ q $$‐deformed diffusion differential equation. This approach allows us to realize that the standard deviation of the distribution must be a function of
Won Sang Chung, L. M. Nieto, Soroush Zare, Hassan Hassanabadi   +3 more
wiley   +1 more source

Gradient Technique Theory: Tracing Magnetic Field and Obtaining Magnetic Field Strength

The Astrophysical Journal
The gradient technique is a promising tool with theoretical foundations based on the fundamental properties of MHD turbulence and turbulent reconnection.
Alex Lazarian, Ka Ho Yuen, Dmitri Pogosyan   +2 more
doaj   +1 more source

Termination Shock Asymmetries as Seen by the Voyager Spacecraft: The Role of the Interstellar Magnetic Field and Neutral Hydrogen [PDF]

, 2007
We show that asymmetries of the termination shock due to the influence of the interstellar magnetic field (ISMF) are considerably smaller in the presence of neutral hydrogen atoms, which tend to symmetrize the heliopause, the termination shock, and the ...
Florinski, Vladimir, Pogorelov, Nikolai V., Stone, Edward C., Zank, Gary P.   +3 more
core   +1 more source

Metallic messengers from the cosmos: Rare (Al,Cu)‐bearing meteorites from the Project Stardust collection

Meteoritics &Planetary Science, EarlyView.
Abstract We report the discovery of (Al,Cu)‐bearing metallic alloys in two micrometeorites found in the Project Stardust collection gathered from urban rooftop environments in Norway. Most of the alloys are the same as those found in the Khatyrka meteorite and other micrometeorites, though one has a composition that has not been reported previously ...
Luca Bindi, Jon Larsen, Jan B. Kihle, Guangming Cheng, Jinping Hu, Nan Yao, Chi Ma, Yunbin Guan, Paul D. Asimow, Paul J. Steinhardt   +9 more
wiley   +1 more source

Magnetic Fields in Giant Filaments Probed by the Velocity Gradient Technique: Regular Magnetic Field Interrupted by Magnetization Gaps

The Astrophysical Journal
We study the magnetic field structures in six giant filaments associated with the spiral arms of the Milky Way by applying the velocity gradient technique (VGT) to the ^13 CO spectroscopic data from the GRS, FUGIN, and SEDIGSM surveys.
Mengke Zhao, Guang-Xing Li, Jianjun Zhou, Xindi Tang, Jarken Esimbek, Yuxin He, Dalei Li, Weiguang Ji, Zhengxue Chang, Kadirya Tursun   +9 more
doaj   +1 more source

A Small Pathbreaking Spacecraft: Giants of Space Research (Bernard Blake, Dieter Hovestadt, and Edward Stone)

Perspectives of Earth and Space Scientists, Volume 6, Issue 1, December 2025.
Abstract The Solar, Anomalous, and Magnetospheric Explorer (SAMPEX) mission launched in July 1992 was the first NASA “Small Explorer” project. It had the goal to show how space missions could be developed much more rapidly than had become the situation in the 1980s and 1990s.
D. N. Baker, G. M. Mason
wiley   +1 more source