Results 31 to 40 of about 2,384 (264)

Dissociative Recombination of CH+ Molecular Ion Induced by Very Low Energy Electrons

open access: yesAtoms, 2019
We used the multichannel quantum defect theory to compute cross sections and rate coefficients for the dissociative recombination of CH + initially in its lowest vibrational level v i + = 0 with electrons of incident energy below 0 ...
Zsolt J. Mezei   +3 more
doaj   +1 more source

Are Supernovae Responsible for the Gamma Ray Spectrum from the Galactic Center?

open access: yesActa Polytechnica CTU Proceedings, 2014
We discuss the supernova remnants distribution as a function of the galactic longitude and compare their positions to that of the detected TeV gamma ray sources. A large fraction of these sources either coincide or a close by known supernova remnants. If
Todor Stanev
doaj   +1 more source

Comparing the Locations of Supernovae to CO (2–1) Emission in Their Host Galaxies

open access: yesThe Astrophysical Journal, 2023
We measure the molecular gas environment near recent (
Ness Mayker Chen   +21 more
doaj   +1 more source

Nonthermal Chemistry in Diffuse Clouds with Low Molecular Abundances

open access: yesThe Astrophysical Journal, 2003
High quality archival spectra of interstellar absorption from C I toward 9 stars, taken with the Goddard High Resolution Spectrograph on the Hubble Space Telescope, were analyzed. Our sample was supplemented by two sight lines, 23 Ori and B1 Sco, for which the C I measurements of Federman, Welty, & Cardelli were used.
Zsargo, J., Federman, S. R.
openaire   +2 more sources

Characterizing the 3D Structure of Molecular Cloud Envelopes in the Cloud Factory Simulations

open access: yesThe Astrophysical Journal
We leverage recent numerical simulations of highly resolved star-forming regions in a Milky Way–like galaxy to explore the nature of extended gaseous envelopes around molecular clouds.
Elijah Mullens   +3 more
doaj   +1 more source

Observational Constraints for Modeling Diffuse Molecular Clouds [PDF]

open access: yesProceedings of the International Astronomical Union, 2013
AbstractGround-based and space-borne observations of diffuse molecular clouds suggest a number of areas where further improvements to modeling efforts is warranted. I will highlight those that have the widest applicability. The range in CO fractionation caused by selective isotope photodissociation, in particular the large 12C16O/13C16O ratios observed
openaire   +1 more source

Adenosine triphosphate as a modulator of protein interactions and stability

open access: yesFEBS Open Bio, EarlyView.
ATP is best known as the cell's energy currency, but it also shapes how proteins fold, interact, aggregate and form biomolecular condensates. This review explains the emerging physical principles behind these effects, including weak binding to charged protein regions, magnesium‐dependent behaviour and concentration‐dependent control of protein ...
Shuyuan Tan, Robin Curtis
wiley   +1 more source

CO Structures with Narrow Lines in Nearby Quiescent Regions

open access: yesThe Astrophysical Journal Letters
Using CO data from Phase I of the Milky Way Imaging Scroll Painting survey, we present a systematic study of molecular structures with narrow lines.
Ruilin Xia   +15 more
doaj   +1 more source

Enhancing Low‐Temperature Performance of Sodium‐Ion Batteries via Anion‐Solvent Interactions

open access: yesAdvanced Functional Materials, EarlyView.
DOL is introduced into electrolytes as a co‐solvent, increasing slat solubility, ion conductivity, and the de‐solvent process, and forming an anion‐rich solvent shell due to its high interaction with anion. With the above virtues, the batteries using this electrolyte exhibit excellent cycling stability at low temperatures. Abstract Sodium‐ion batteries
Cheng Zheng   +7 more
wiley   +1 more source

Reevaluation of the Cosmic-Ray Ionization Rate in Diffuse Clouds

open access: yesThe Astrophysical Journal
All current estimates of the cosmic-ray (CR) ionization rate rely on assessments of the gas density along the probed sight lines. Until now, these have been based on observations of different tracers, with C _2 being the most widely used in diffuse ...
M. Obolentseva   +8 more
doaj   +1 more source

Home - About - Disclaimer - Privacy