Results 61 to 70 of about 44,713 (249)

Coupled Chemistry-Emission Model for Atomic Oxygen Green and Red-doublet Emissions in Comet C/1996 B2 Hyakutake

, 2012
The green (5577 \AA) and red-doublet (6300, 6364 \AA) lines are prompt emissions of metastable oxygen atoms in the $^1$S and $^1$D states, respectively, that have been observed in several comets.
Anil Bhardwaj, Biver, Combi, Combi, Demore, Feldman, Festou, Festou, Glinski, Huebner, Huestis, Kedzierski, LeClair, Link, Morgenthaler, Morgenthaler, Raghuram, Seng, Susarla Raghuram, Wiese   +19 more
core   +1 more source

Spectroscopy of Rb$_{2}$ dimers in solid $^{4}$He [PDF]

, 2006
We present experimental and theoretical studies of the absorption, emission and photodissociation spectra of Rb$_{2}$ molecules in solid helium. We have identified 11 absorption bands of Rb$_{2}$.
A. Hofer, A. Weis, J. Higgins, P. Moroshkin, S. J. Park, S. Ulzega   +5 more
core   +2 more sources

Charge State Influence on Stability and Isomerism in Dehydrogenated PAHs: Insights from Anthracene, Acridine, and Phenazine

ChemPhysChem, Volume 26, Issue 6, March 15, 2025.
The ionization of anthracene, acridine, and phenazine has been explored, along with the removal of one and two hydrogen atoms, to provide valuable information for astrochemists and to understand the behavior of the resulting structures and their electronic reorganization. Abstract In this study, we systematically explored the stability and isomerism of
Khaldia Zghida, Farouk Hamza Reguig, Manuel Alcamí, Al Mokhtar Lamsabhi   +3 more
wiley   +1 more source

Photoprocesses in protoplanetary disks

, 2006
Circumstellar disks are exposed to intense ultraviolet radiation from the young star. In the inner disks, the UV radiation can be enhanced by more than seven orders of magnitude compared with the average interstellar field, resulting in a physical and ...
Aikawa, Augereau, Bastiaan Jonkheid, Bergin, Brittain, Buenker, Calvet, Chiang, Clampin, Connors, D?Alessio, Dent, Draine, Dunning, Dutrey, Ewine F. van Dishoeck, Feigelson, Geers et al., Gorti, Greaves, Gredel, Guest, Habing, Hauschildt, Herbig, Hollenbach, Honjou, Huebner, Jonkheid, Jonkheid, Kamp, Kamp, Kamp, Kessler-Silacci, Kirby, Kirby, Koch, Koch, Lavendy, Lee, Lee, Lee, Lee, Lee, Lepp, Li, Lyons, Marc C. van Hemert, Markwick, Min, Muzerolle, Nee, Nee, Ogawa, Okabe, Pouilly, R?melt, Roberge, Roberge, Shen, Shih, Spaans, St?uber, St?uber, Suto, Suto, Suto, Suto, Sylvester, Theodorakopoulos, Thi, van Boekel, van Dishoeck, van Dishoeck, van Dishoeck, van Dishoeck, van Dishoeck, van Zadelhoff, Watanabe, Weidenschilling, Willacy, Yoshino   +81 more
core   +1 more source

PHOTODISSOCIATION OF CN

The Astrophysical Journal, 2013
CN rovibrational photodissociation cross sections have been computed using ab initio derived potential curves and dipole transition moment functions adjusted to match asymptotic experimental constraints where available. Here, we report results for the electronic transitions {sup 2}Σ{sup +}(4) ← X {sup 2}Σ{sup +}, {sup 2}Σ{sup +}(5) ← X {sup 2}Σ{sup +},
W. el-Qadi, Phillip C. Stancil
openaire   +2 more sources

Simulation-guided engineering of split GFPs with efficient β-strand photodissociation

Nature Communications, 2023
Green fluorescent proteins (GFPs) are ubiquitous for protein tagging and live-cell imaging. Split-GFPs are widely used to study protein-protein interactions by fusing proteins of interest to split GFP fragments that create a fluorophore upon typically ...
Yasmin Shamsudin, Alice R. Walker, Chey M. Jones, Todd J. Martínez, Steven G. Boxer   +4 more
doaj   +1 more source

Indistinguishability and Interference in the Coherent Control of Atomic and Molecular Processes

, 2010
The subtle and fundamental issue of indistinguishability and interference between independent pathways to the same target state is examined in the context of coherent control of atomic and molecular processes, with emphasis placed on possible "which-way"
Feynman R. P., Greenstein G., Jiangbin Gong, Loudon R., Nielsen M. A., Paul Brumer, Rice S. A., Schlosshauer M., Tannor D.   +8 more
core   +1 more source

Recent Advancements in the Characterization of D‐Amino Acid and Isoaspartate Post‐Translational Modifications

Mass Spectrometry Reviews, EarlyView.
ABSTRACT One of the great triumphs of mass spectrometry‐based peptide and protein characterization is the characterization of their modifications as most modifications have a characteristic mass shift. What happens when the modification does not change the mass of the peptide?
Samuel Okyem, Jonathan V. Sweedler
wiley   +1 more source

Quantitative Top–Down Proteomics Reveals Significant Differences in Histone Proteoforms Between Metastatic and Nonmetastatic Colorectal Cancer Cells

PROTEOMICS, EarlyView.
ABSTRACT Colorectal cancer (CRC) development is closely associated with the accumulation of both genetic and epigenetic alterations. Many efforts have been made to investigate the role of epigenetic modifications in CRC metastasis. In this work, we present the quantitative top‐down proteomics study focusing on histone proteoforms between metastatic ...
Fei Fang, Brian Fries, Zhige Wang, Xiaowen Liu, Amanda B. Hummon, Liangliang Sun   +5 more
wiley   +1 more source

Isolated spin polarized hydrogen atoms as targets for laser-induced polarized electron acceleration

Frontiers in Physics
High density Spin Polarized Hydrogen (SPH) atoms, which can be prepared using UV dissociation of hydro-halide molecules, can be attractive as potential targets for laser ionization/acceleration schemes aiming to create high energy and high current ...
Dimitris Sofikitis, Marios G. Stamatakis, Dimitrios G. Papazoglou, Dimitrios G. Papazoglou, T. Peter Rakitzis, T. Peter Rakitzis   +5 more
doaj   +1 more source