Magnetic field morphology in interstellar clouds with the velocity gradient technique [PDF]
Nature Astronomy, 2019 Magnetic fields, while ubiquitous in many astrophysical environments, are challenging to measure observationally. Based on the properties of anisotropy of eddies in magnetized turbulence, the velocity gradient technique is a method synergistic to dust ...
Yue Hu +8 more
semanticscholar +1 more source
Interstellar chemistry of nitrogen hydrides in dark clouds [PDF]
, 2013 Nitrogen, amongst the most abundant metals in the interstellar medium, has a peculiar chemistry that differs from those of carbon and oxygen. Recent observations of several nitrogen-bearing species in the interstellar medium suggest abundances in sharp ...
Romane Le Gal +5 more
openalex +3 more sources
Magnetic seismology of interstellar gas clouds: Unveiling a hidden dimension [PDF]
Science, 2018 A vibrating molecular cloud in three dimensions Molecular clouds are relatively dense assemblies of interstellar dust and gas (mostly molecular hydrogen) from which stars form.
A. Tritsis, K. Tassis
semanticscholar +1 more source
High‐Pressure Carbonaceous Phases as Minerals
Geophysical Monograph Series, Page 11-23., 2020 This book is Open Access. A digital copy can be downloaded for free from Wiley Online Library.
Explores the behavior of carbon in minerals, melts, and fluids under extreme conditions
Carbon trapped in diamonds and carbonate-bearing rocks in subduction zones are examples of the continuing exchange of substantial carbon ...
Oliver Tschauner
wiley +1 more source
Atomistic Modeling of Methyl Formate and Glycolaldehyde Formation on Interstellar Dirty Ice Mantles via a "Radical + Ice" Mechanism. [PDF]
ChempluschemThe presence of interstellar complex organic molecules (COMs) has been baffling astrochemists for a long time. Methyl formate and glycolaldehyde are widely detected but their abundances mismatch kinetic astrochemical model predictions. Here, the formation of these two COMs is characterized onto a mixed ice surface, highlighting the importance of ...
Perrero J +3 more
europepmc +2 more sources
THE CHEMISTRY OF INTERSTELLAR ARGONIUM AND OTHER PROBES OF THE MOLECULAR FRACTION IN DIFFUSE CLOUDS [PDF]
, 2016 We present a general parameter study in which the abundance of interstellar argonium (ArH+) is predicted using a model for the physics and chemistry of diffuse interstellar gas clouds.
D. Neufeld, M. Wolfire
semanticscholar +1 more source
The Distance to High-velocity Cloud Complex M
The Astrophysical Journal, 2023 λ -21 cm HI4PI survey data are used to study the anomalous-velocity hydrogen gas associated with high-velocity cloud Complex M. These high-sensitivity, high-resolution, high-dynamic-range data show that many of the individual features, including MI, MIIa,
G. L. Verschuur, J. T. Schmelz
doaj +1 more source
despotic – a new software library to Derive the Energetics and SPectra of Optically Thick Interstellar Clouds [PDF]
, 2013 I describe DESPOTIC, a code to Derive the Energetics and SPectra of Optically Thick Interstellar Clouds. DESPOTIC represents such clouds using a one-zone model, and can calculate line luminosities, line cooling rates, and in restricted cases line ...
M. Krumholz
semanticscholar +1 more source
INTERSTELLAR DUST CHARGING IN DENSE MOLECULAR CLOUDS: COSMIC RAY EFFECTS [PDF]
, 2015 The local cosmic-ray (CR) spectra are calculated for typical characteristic regions of a cold, dense molecular cloud to investigate two mechanisms of dust charging that have, thus far, been neglected: the collection of suprathermal CR electrons and ...
A. Ivlev +3 more
semanticscholar +1 more source
A UNIFIED MICROSCOPIC–MACROSCOPIC MONTE CARLO SIMULATION OF GAS-GRAIN CHEMISTRY IN COLD DENSE INTERSTELLAR CLOUDS [PDF]
, 2012 For the first time, we report a unified microscopic–macroscopic Monte Carlo simulation of gas-grain chemistry in cold interstellar clouds in which both the gas-phase and the grain-surface chemistry are simulated by a stochastic technique.
Q. Chang, E. Herbst
semanticscholar +1 more source