Results 41 to 50 of about 1,818 (183)

Structure and Spectroscopy of Criegee Intermediates in Gas‐ and Aqueous Environments

Helvetica Chimica Acta, Volume 109, Issue 5, May 2026.
ABSTRACT The dynamics and spectroscopy of the small (H2COO) and large (CH3CHOO) Criegee intermediates (CIs) in the gas phase, inside/on water droplets, on amorphous solid water (ASW) and in bulk water are investigated using validated energy functions.
Cangtao Yin, Meenu Upadhyay, Markus Meuwly   +2 more
wiley   +1 more source

Mind and Cosmos as Throughput Systems: A Convergence Through the Throughput Model

Systems Research and Behavioral Science, Volume 43, Issue 3, Page 1212-1228, May/June 2026.
ABSTRACT This paper advances a conceptual and mathematical foundations approach by applying the throughput model (TPM) to cosmic phenomena, reframing the universe as an extended information processing system. TPM's four stages, Perception, Information, Judgement and Decision Choice, are reformulated in explicit information‐theoretic and dynamical ...
Waymond Rodgers
wiley   +1 more source

Kinematics of H I Envelopes Associated with Molecular Clouds

The Astronomical Journal
We investigate the evolution of molecular clouds through the kinematics of their atomic hydrogen (H I ) envelopes, using ^12 CO and 21 cm emission to trace the molecular and atomic gas, respectively.
Thummim Mekuria, Nia Imara
doaj   +1 more source

FORMATION OF SMALL-SCALE STRUCTURES IN THEINTERSTELLAR MEDIUM

Odessa Astronomical Publications, 2008
We consider formation of small scale structures in the process of interstellar cloud destruction by shock waves. We calculate statistical properties of HI column densities, optical depth and brightness temperature in 21 cm line.
E. E. Matvienko, E. O. Vasiliev, Yu. A. Shchekinov   +2 more
doaj   +1 more source

Soft X‐Ray Emission From Saturn's Magnetosheath Part I: 3D Modeling From MHD Data

Journal of Geophysical Research: Space Physics, Volume 131, Issue 5, May 2026.
Abstract Saturn's magnetosheath hosts a mixed population of water‐group neutrals and solar wind plasma. We present a 3‐D model of soft X‐ray emission by ion‐neutral charge exchange in the near‐equatorial magnetosheath. The model employs MHD simulation data of plasma properties at Saturn, Enceladus‐genic neutral populations extrapolated from existing ...
P. C. Rogan, L. C. Ray, D. Naylor, W. R. Dunn, X. Jia, H. T. Smith, A. Sulaiman   +6 more
wiley   +1 more source

The H2 Glow of a Quiescent Molecular Cloud Observed with JWST

The Astrophysical Journal Letters
We report JWST MIRI/MRS observations of the H _2 S (1) 17.04 μ m transition in two regions in the boundary of the Taurus molecular cloud. The two regions, denoted “Edge” (near the relatively sharp boundary of the ^13 CO J  = 1 → 0 emission) and “Peak ...
Paul F. Goldsmith, Shengzhe Wang, Xin Wang, Raphael Skalidis, Gary A. Fuller, Di Li, Chao-Wei Tsai, Lile Wang, Donghui Quan   +8 more
doaj   +1 more source

High-resolution Observations of H i in the IC 63 Reflection Nebula

The Astronomical Journal, 2023
Photodissociation regions (PDRs), where the (far-)ultraviolet light from hot young stars interact with the gas in surrounding molecular clouds, provide laboratories for understanding the nature and role of feedback by star formation on the interstellar ...
Lars Bonne, B-G Andersson, Robert Minchin, Archana Soam, Joshua Yaldaei, Kristin Kulas, Janik Karoly, Lewis B. G. Knee, Siddharth Kumar, Nirupam Roy   +9 more
doaj   +1 more source

A study of C3HD in cold interstellar clouds

The Astrophysical Journal, 1988
The published version is located at http://adsabs.harvard.edu/doi/10.1086 ...
BELL, MB, AVERY, LW, MATTHEWS, HE, FELDMAN, PA, WATSON, JKG, MADDEN, SC, Irvine, William M.   +6 more
openaire   +2 more sources

The May 2024 Superstorm Coronal Mass Ejections as Observed by the Psyche Gamma‐Ray and Neutron Spectrometer

Space Weather, Volume 24, Issue 5, May 2026.
Abstract We report new measurements of high‐energy protons ejected by the sun during the May 2024 Ganon superstorm. Our observations were made by the Neutron Spectrometer (NS) on the Psyche spacecraft, which was located at a solar distance of approximately 2 AU and a Sun‐Earth‐Probe separation angle of 75°.
Madison Liebel, Patrick N. Peplowski, David J. Lawrence, Insoo Jun   +3 more
wiley   +1 more source

Valence Threshold Photoionization Spectra of C5$_5$H and C5$_5$H2$_2$ Isomers

ChemPhysChem, Volume 27, Issue 8, 28 April 2026.
Mass‐selected threshold photoelectron spectra (TPES) of l‐C5H, HC5H, and c–C3H‐CCH were recorded using double‐imaging photoelectron‐photoion coincidence spectroscopy. These transient species were generated in situ by hydrogen abstraction from cyclopropylacetylene and 1,3‐pentadiyne.
Ugo Jacovella, Myriam Drissi, Bérenger Gans, Corentin Rossi, Gustavo A. Garcia, Hai Linh Le, Mengxu Jiang, Jean‐Claude Guillemin, Séverine Boyé‐Péronne, Jean‐Christophe Loison   +9 more
wiley   +1 more source