Results 61 to 70 of about 34,658 (198)

Entropy Export and Chemical Reactions in Plasmas

Plasma Processes and Polymers, Volume 23, Issue 1, January 2026.
In a non‐equilibrium plasma, energy is transferred to molecules by electron‐impact (1), collisions among excited molecules (2), and Joule heating (3). The entropy balance for this open system relates the energy available per molecule to changes in entropy, which determines plasma‐based gas conversion. ABSTRACT Is plasma truly a “fourth state of matter”?
Dirk Hegemann, Ramses Snoeckx
wiley   +1 more source

H i Kinematics and the E(B − V)/N(H i) Ratio

The Astrophysical Journal
The λ 21 cm H i emission that is used to trace the gas-to-dust ratio at high Galactic latitudes has contributions from material beyond the Milky Way disk, with uncertain and likely subsolar metallicity and dust content.
Harvey Liszt
doaj   +1 more source

Herschel/HIFI observations of interstellar OH+ and H2O+ towards W49N: a probe of diffuse clouds with a small molecular fraction [PDF]

, 2010
We report the detection of absorption by interstellar hydroxyl cations and water cations, along the sight-line to the bright continuum source W49N.
A. Coutens, A. Cros, A. G. G. M. Tielens, A. Lorenzani, B. Godard, B. Mookerjea, Brogan, C. Gry, C. Joblin, C. Persson, C. Vastel, D. A. Neufeld, D. C. Lis, D. Teyssier, de Graauw, E. Dartois, E. Falgarone, E. Herbst, F. Boulanger, Fish, Gerin, Godard, Goicoechea, Gwinn, H. Gupta, Indriolo, J. Cernicharo, J. H. Black, J. Krełowski, J. Martín-Pintado, J. Pearson, J. R. Goicoechea, J. Stutzki, J. Zmuidzinas, K. Klein, K. M. Menten, Kre▯owski, L. A. Samoska, Le Petit, Le Petit, Liszt, M. De Luca, M. Gerin, M. Kazmierczak, M. Perault, M. Salez, M. Schmidt, Mürtz, Ossenkopf, P. Encrenaz, P. F. Goldsmith, P. Hennebelle, P. Hily-Blant, P. Rimmer, P. Sonnentrucker, Pilbratt, Plume, R. Kołos, R. Monje, R. Plume, R. Shipman, R. Szczerba, S. Philipp, S. Schlemmer, S. Yu, Sonnentrucker, Strahan, T. A. Bell, T. G. Phillips, T. Giesen, T. R. Geballe, Van der Werf, van Dishoeck, Vastel, Wehinger, Wyrowski   +75 more
core   +2 more sources

Adsorption of Helium on Cationic or Anionic Tetracene and Pentacene

Small Structures, Volume 7, Issue 1, January 2026.
How does the arrangement of helium atoms that are adsorbed on tetracene or pentacene ions change with increasing coverage? When does the adsorption layer change from 1D to 2D, and to 3D? Is the transition abrupt? Are the helium atoms localized? Is the arrangement the same for cations and anions? What changes as the acene grows in length?
Miriam Kappe, Florent Calvo, Rasif William, Bilal Rasul, Masoomeh Mahmoodi‐Darian, Paul Scheier, Olof Echt   +6 more
wiley   +1 more source

Interstellar gas within $\sim 10$ pc of Sgr A$^*$

, 2012
We seek to obtain a coherent and realistic three-dimensional picture of the interstellar gas out to about 10 pc of the dynamical center of our Galaxy, which is supposed to be at Sgr A$^*$.
Aitken, Amo-Baladrón, Amo-Baladrón, Baganoff, Beckert, Becklin, Blum, Bradford, Brown, Burton, Christopher, Coil, Coil, Davidson, Dent, Depoy, Ekers, Ekers, Gatley, Gatley, Geballe, Genzel, Genzel, Güsten, Güsten, Güsten, Hall, Harris, Herbst, Herrnstein, Herrnstein, Jackson, Jones, K. Ferrière, Karlsson, Koyama, Krabbe, Krabbe, Lacy, Lacy, Lacy, Latvakoski, Lee, Lee, Lis, Liszt, Liszt, Liszt, Lo, Lutz, Maeda, Marr, Marshall, McGary, Melia, Mezger, Mezger, Montero-Castaño, Morris, Morris, Mužić, Oka, Okumura, Okumura, Park, Park, Paumard, Paumard, Pedlar, Poglitsch, Reid, Roberts, Roberts, Rockefeller, Sakano, Sanders, Sandqvist, Sandqvist, Schwarz, Schödel, Schödel, Serabyn, Serabyn, Serabyn, Serabyn, Serabyn, Shukla, Sjouwerman, Solomon, Sutton, Telesco, Trippe, Tsuboi, Tsuboi, Tsuboi, Viehmann, Vollmer, Wardle, Whiteoak, Wright, Wright, Yuan, Yusef-Zadeh, Yusef-Zadeh, Yusef-Zadeh, Yusef-Zadeh, Yusef-Zadeh, Yusef-Zadeh, Yusef-Zadeh, Yusef-Zadeh, Yusef-Zadeh, Yusef-Zadeh, Yusef-Zadeh, Zhao, Zhao, Zylka, Zylka   +116 more
core   +1 more source

Photoelectron Spectroscopy of the Phosphorus Monosulfide (PS) and Phosphorus Monoxide (PO) Radicals

Small Structures, Volume 7, Issue 1, January 2026.
Sketch of the experiment to measure the photo electron spectrum of the PS radical produced in situ with a mixture of PH3, H2S and F atoms. PO and PS radicals are the smallest units of phosphorus oxides and phosphorus sulfides, respectively, two rich families of refractory compounds widely employed in industrial and technological applications. These two
Pedro Recio, Jorge Alonso de la Fuente, Myriam Drissi, Niyazi Bulut, Jean Christophe Loison, Gustavo Garcia, Susana Gomez Carrasco, Cristina Sanz Sanz, Luis Bañares, Sonia Marggi Poullain, Alexandre Zanchet   +10 more
wiley   +1 more source

FAST-ASKAP Synergy: Quantifying Coexistent Tidal and Ram Pressure Strippings in the NGC 4636 Group

The Astrophysical Journal, 2023
Combining new H i data from a synergetic survey of Australian Square Kilometre Array Pathfinder (ASKAP) Widefield ASKAP L -band Legacy All-sky Blind surveY and Five-hundred-meter Aperture Spherical radio Telescope with the Arecibo Legacy Fast ALFA data ...
Xuchen Lin, Jing Wang, Virginia Kilborn, Eric W. Peng, Luca Cortese, Alessandro Boselli, Ze-Zhong Liang, Bumhyun Lee, Dong Yang, Barbara Catinella, N. Deg, H. Dénes, Ahmed Elagali, P. Kamphuis, B. S. Koribalski, K. Lee-Waddell, Jonghwan Rhee, Li Shao, Kristine Spekkens, Lister Staveley-Smith, T. Westmeier, O. Ivy Wong, Kenji Bekki, Albert Bosma, Min Du, Luis C. Ho, Juan P. Madrid, Lourdes Verdes-Montenegro, Huiyuan Wang, Shun Wang   +29 more
doaj   +1 more source

Kinetics and Thermodynamics of Tautomerization Reactions of 1,1‐ and 1,2‐Ethenediols

International Journal of Chemical Kinetics, Volume 57, Issue 12, Page 687-696, December 2025.
ABSTRACT Tautomerism is a common phenomenon amongst organic molecules with easily interconvertible isomers, which can impact drug action and toxicity. Here we are interested in the enols of carboxylic acids, which are known to be much less stable than their acid counterparts.
Judith Würmel, John M. Simmie
wiley   +1 more source

Gas-grain chemistry in cold interstellar cloud cores with a microscopic Monte Carlo approach to surface chemistry

, 2007
AIM: We have recently developed a microscopic Monte Carlo approach to study surface chemistry on interstellar grains and the morphology of ice mantles.
Chang, Q., Cuppen, H. M., Herbst, E.
core   +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