Results 81 to 90 of about 2,128 (220)
ACES: The Magnetic Field in Large Filaments in the Galactic Center
The Astrophysical JournalThe Galactic center (GC) is an extreme region of the Milky Way that is host to a complex set of thermal and nonthermal structures. In particular, the GC contains high-density gas and dust that is collectively referred to as the Central Molecular Zone ...
Dylan M. Paré +35 more
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Dense molecular clouds in the SN2008fp host galaxy?
, 2014 Accepted for publication in A&A. Context. Supernovae (SNe) offer a unique opportunity to study physical properties, small-scale structure, and complex organic chem-istry of the interstellar medium (ISM) in different galaxies. Aims.
N. L. J. Cox, F. Patat
core +1 more source
The Astrophysical JournalThe increased sensitivity and spectral resolution of observed spectra toward the prestellar core L1544 are challenging the current physical and chemical models.
J. Ferrer Asensio +6 more
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A mechanism for heating dense interstellar clouds
The Astrophysical Journal, 1977 The rate of rotation of an interstellar cloud tends to increase as it contracts. As differential rotation occurs within a cloud, magnetic field lines are bent and twisted. The deformation of the magnetic field lines produces hydromagnetic waves and leads to a damping of the rotation.
openaire +1 more source
Cloud Formation by Supernova Implosion
The Astrophysical JournalThe deposition of energy and momentum by supernova explosions has been subject to numerous studies in the past few decades. However, while there has been some work that focused on the transition from the adiabatic to the radiative stage of a supernova ...
Leonard E. C. Romano +2 more
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The Effect of an Inert Solid Reservoir on Molecular Abundances in Dense Interstellar Clouds
Open Astronomy, 2012 The question, what is the role of freeze-out of chemical species in determining the molecular abundances in the interstellar gas is a matter of debate.
Kalvāns Juris, Shmeld Ivar
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Molecular and Solid Hydrogen in Dense Interstellar Clouds
The Astrophysical Journal, 1969 Molecular and solid hydrogen in dense interstellar clouds suggested from underabundance of neutral atomic hydrogen, discussing grain ...
P. M. Solomon, N. C. Wickramasinghe
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Molecular Hydrogen Formation via Vibrational Excitation of Partially Superhydrogenated Pyrenes
The Astrophysical JournalWhile polycyclic aromatic hydrocarbons (PAHs) are now accepted to be abundant in interstellar space, the abundance and influence of superhydrogenated PAHs (HPAHs) in the interstellar medium (ISM) are still under investigation.
Frederik Doktor S. Simonsen +6 more
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Molecule Formation in Cool, Dense Interstellar Clouds [PDF]
Symposium - International Astronomical Union, 1980 A discussion is given of the general processes and considerations that arise in attempting to understand molecular reactions in cool, dense interstellar clouds. Basic elements of the gas phase, “ion-molecule” scheme are given explicitly before surveying topics in which there is considerable current activity.
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Deuterium-bearing molecules in cold and warm dense interstellar clouds
, 2009 We have studied the production of key observed deuterium species for TMC-1, Orion, L134N and W3IRS4 clouds, of densities 104, 104, 5×104, and 106cm−3, respectively, by using the pseudo-time dependent gas-phase chemistry. These clouds have temperatures in
Kordi, Ayman S., Amin, Magdy Y.
core +1 more source