Results 41 to 50 of about 42,575 (298)
Ambipolar Diffusion Effects on Weakly Ionized Turbulence Molecular Clouds [PDF]
Proceedings of the International Astronomical Union, 2010 AbstractAmbipolar diffusion (AD) is a key process in molecular clouds (MCs). Non-ideal MHD turbulence simulations are technically very challenging because of the large Alfvén speed of ions in weakly ionized clouds. Using the Heavy-Ion Approximation method (Li, McKee & Klein 2006), we have carried out two-fluid simulations of AD in isothermal ...
Pak Shing Li +2 more
openaire +1 more source
Characterizing the 3D Structure of Molecular Cloud Envelopes in the Cloud Factory Simulations
The Astrophysical JournalWe 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
Tumour–host interactions in Drosophila: mechanisms in the tumour micro‐ and macroenvironment
Molecular Oncology, EarlyView.This review examines how tumour–host crosstalk takes place at multiple levels of biological organisation, from local cell competition and immune crosstalk to organism‐wide metabolic and physiological collapse. Here, we integrate findings from Drosophila melanogaster studies that reveal conserved mechanisms through which tumours hijack host systems to ...
José Teles‐Reis, Tor Erik Rusten
wiley +1 more source
Reevaluation of the Cosmic-Ray Ionization Rate in Diffuse Clouds
The Astrophysical JournalAll 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
Dependence of Chemical Abundance on the Cosmic-Ray Ionization Rate in IC 348
The Astrophysical Journal, 2023 Ions (e.g., ${{\rm{H}}}_{3}^{+}$ , H _2 O ^+ ) have been used extensively to quantify the cosmic-ray ionization rate (CRIR) in diffuse sightlines. However, measurements of the CRIR in low-to-intermediate density gas environments are rare, especially when
Gan Luo +10 more
doaj +1 more source
Physical Processes in Star-Gas Systems [PDF]
, 2003 First we present a recently developed 3D chemodynamical code for galaxy evolution from the K**2 collaboration. It follows the evolution of all components of a galaxy such as dark matter, stars, molecular clouds and diffuse interstellar matter (ISM). Dark
A. Just +23 more
core +3 more sources
Nonthermal Chemistry in Diffuse Clouds with Low Molecular Abundances
The 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
Enhancing Low‐Temperature Performance of Sodium‐Ion Batteries via Anion‐Solvent Interactions
Advanced 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
The Astrophysical JournalTurbulent diffuse molecular clouds can exhibit complicated morphologies caused by the interactions among radiation, chemistry, fluids, and fields.
Nannan Yue +4 more
doaj +1 more source
First ALMA Maps of Cosmic-Ray Ionization Rate in High-mass Star-forming Regions
The Astrophysical Journal Letters, 2023 Low-energy cosmic rays (
Giovanni Sabatini +2 more
doaj +1 more source