Results 61 to 70 of about 34,807 (192)
ChemPhysChem, Volume 27, Issue 8, 28 April 2026.For directly comparing experimental results on gas‐phase ion reactions with the predictions from quantum chemical calculations, the latter must first be converted into rate constants. This review addresses the question of whether current methods of statistical rate theory can accomplish this task reliably. Statistical rate theory has long been used for
Thomas Auth, Konrad Koszinowski
wiley +1 more source
Atomic Gas in Debris Discs [PDF]
, 2016 We have conducted a search for optical circumstellar absorption lines in the spectra of 16 debris disc host stars. None of the stars in our sample showed signs of emission line activity in either H$_{\alpha}$, Ca II or Na I, confirming their more evolved
Barlow, M. J. +3 more
core +2 more sources
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 +9 more
wiley +1 more source
, 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
O and Ne K absorption edge structures and interstellar abundance towards Cyg X-2 [PDF]
, 2002 We have studied the O and Ne absorption features in the X-ray spectrum of Cyg X-2 observed with the Chandra LETG. The O absorption edge is represented by the sum of three absorption-edge components within the limit of the energy resolution and the photon
Crovisier J. +7 more
core +2 more sources
Spectroscopic Investigation of Thioacrolein by Variational and Perturbational Approaches
Journal of Computational Chemistry, Volume 47, Issue 10, 15 April 2026.The vibrational and rotational spectra of trans and cis‐thioacrolein were studied by high levels of electronic and vibrational structure theory. Comparisons with experimental results are provided for several molecular quantities. ABSTRACT The vibrational spectra of trans and cis‐thioacrolein have been studied by 2nd order vibrational perturbation ...
Guntram Rauhut
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 +29 more
doaj +1 more source
On the Formation of CO2 and Other Interstellar Ices
, 2011 We investigate the formation and evolution of interstellar dust-grain ices under dark-cloud conditions, with a particular emphasis on CO2. We use a three-phase model (gas/surface/mantle) to simulate the coupled gas--grain chemistry, allowing the ...
Garrod, Robin T., Pauly, Tyler
core +1 more source
Prebiotic Organic Chemistry of Diketopiperazines
Asian Journal of Organic Chemistry, Volume 15, Issue 4, April 2026.Diketopiperazines (DKPs) are considered essential in many life forms, but their prebiotic importance has not been fully understood. This review aims to discuss prebiotic organic chemistry for experimentally and computationally simulated reactions involving DKPs. ABSTRACT Even though the significance of amino acids and polypeptides is well recognized in
Jun Ohata
wiley +1 more source
Tracing Quenching in Nearby Galaxies through Inner Surface Mass Density and Cold Gas Content
The Astrophysical JournalThe inner stellar mass surface density within 1 kpc, Σ _1 , has emerged as a suitable proxy for bulge growth and galaxy quenching. However, the dependence of cold gas content on Σ _1 has not been thoroughly explored.
Evangela E. Shread +3 more
doaj +1 more source