Results 31 to 40 of about 889,569 (256)

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, M. Padovani, D. Galli, P. Caselli   +3 more
semanticscholar   +1 more source

Supersonic turbulence and structure of interstellar molecular clouds [PDF]

, 2002
The interstellar medium (ISM) provides a unique laboratory for highly supersonic, driven hydrodynamics turbulence. We present a theory of such turbulence, confirm it by numerical simulations, and use the results to explain observational properties of ...
B. Dubrulle, B. G. Elmegreen, B. G. Elmegreen, D. Chappell, D. H. Porter, D. Porter, E. A. Novikov, E. C. Ostriker, E. Falgarone, E. Falgarone, H. Politano, J. Cho, M. A. de Avillez, M. J. Korpi, P. Padoan, Paolo Padoan, R. B. Larson, R. B. Larson, R. Benzi, R. Benzi, R. Camussi, R. Grauer, S. Boldyrev, Stanislav Boldyrev, U. Frisch, W.-C. Müller, Z.-S. She, Z.-S. She, Åke Nordlund   +28 more
core   +2 more sources

Evolution of Interstellar Clouds in Local Group Dwarf Spheroidal Galaxies in the Context of Their Star Formation Histories [PDF]

, 1999
We consider evolution of interstellar clouds in Local Group dwarf spheroidal galaxies (dSphs) in the context of their observed star formation histories.
Babul A., Begelman M. C., Buonanno R., Efstathiou G., Hirashita H., Hiroyuki Hirashita, Larson R. B., Miyahata K., Ohta K., Roy J.-R., Saito M., Yoshii Y.   +11 more
core   +3 more sources

COLLISIONAL EXCITATION OF THE [C ii] FINE STRUCTURE TRANSITION IN INTERSTELLAR CLOUDS [PDF]

, 2012
We analyze the collisional excitation of the 158 μm (1900.5 GHz) fine structure transition of ionized carbon in terms of line intensities produced by simple cloud models.
P. Goldsmith, W. Langer, J. Pineda, T. Velusamy   +3 more
semanticscholar   +1 more source

The Turbulent Interstellar Medium [PDF]

, 2006
An overview is presented of the main properties of the interstellar medium. Evidence is summarized that the interstellar medium is highly turbulent, driven on different length scales by various energetic processes.
Andreas Burkert, Balbus, Ballesteros-Paredes, Bergin, Blitz, Blondin, Bonnell, Burkert, Burkert, Burkert, Cappellaro, Cowie, de Avillez, de Avillez, Dib, Dib, Dickey, Dickey, Dziourkevitch, Elmegreen, Elmegreen, Elmegreen, Elmegreen, Elmegreen, Elmegreen, Falgarone, Field, Field, Forster Schreiber, Gazol, Hartmann, Hartmann, Hartmann, Hartmann, Heiles, Heitsch, Heitsch, Hennebelle, Hennebelle, Jenkins, Kanekar, Kerp, Kessel-Deynet, Kim, Kim, Kim, Klein, Klessen, Kolmogorov, Koyama, Kritsuk, Kritsuk, Larson, Mac Low, Mac Low, Mac Low, McKee, Palla, Piontek, Puche, Rhode, Scalo, Scalo, Sellwood, Slyz, Stone, Tran, Vishniac, von Weizsäcker, Vázquez-Semadeni, Wada, Walder, Walder, Williams   +73 more
core   +3 more sources

The photodissociation and chemistry of CO isotopologues: applications to interstellar clouds and circumstellar disks [PDF]

, 2009
Aims. Photodissociation by UV light is an important destruction mechanism for carbon monoxide (CO) in many astrophysical environments, ranging from interstellar clouds to protoplanetary disks. The aim of this work is to gain a better understanding of the
R. Visser, E. Dishoeck, J. K. L. Observatory, Mpe Garching, O. Observatory   +4 more
semanticscholar   +1 more source

TOWARD UNDERSTANDING THE COSMIC-RAY ACCELERATION AT YOUNG SUPERNOVA REMNANTS INTERACTING WITH INTERSTELLAR CLOUDS: POSSIBLE APPLICATIONS TO RX J1713.7−3946 [PDF]

, 2011
Using three-dimensional magnetohydrodynamic simulations, we investigate general properties of a blast wave shock interacting with interstellar clouds.
T. Inoue, R. Yamazaki, S. Inutsuka, Y. Fukui   +3 more
semanticscholar   +1 more source

A chemical link between methylamine and methylene imine and implications for interstellar glycine formation

Communications Chemistry, 2022
The detection of glycine in comets is suggestive of a cosmic origin for amino acids on Earth, but the formation of glycine in interstellar media remains poorly understood.
Prasad Ramesh Joshi, Yuan-Pern Lee
doaj   +1 more source

PROPERTIES OF TURBULENCE IN THE VERY LOCAL INTERSTELLAR CLOUDS [PDF]

, 2011
We have investigated the degree to which turbulence in the Very Local Interstellar Clouds resembles the highly studied turbulence in the solar corona and the solar wind, particularly the high-speed solar wind.
S. Spangler, Allison H. Savage, S. Redfield   +2 more
semanticscholar   +1 more source

The chemistry of fluorine-bearing molecules in diffuse and dense interstellar gas clouds

, 2005
We present a theoretical investigation of the chemistry of fluorine-bearing molecules in diffuse and dense interstellar gas clouds. The chemistry of interstellar fluorine is qualitatively different from that of any other element, because - unlike the ...
Neufeld, David A., Schilke, Peter, Wolfire, Mark G.   +2 more
core   +1 more source