2014MNRAS.441.2452C

Query : 2014MNRAS.441.2452C

2014MNRAS.441.2452C - Mon. Not. R. Astron. Soc., 441, 2452-2455 (2014/July-1)

Propagation of acoustic waves in the partly ionized interstellar medium.

CHALOV S.V.

Abstract (from CDS):

The properties of linear acoustic waves propagating in the interstellar medium, which is a mixture of electron-proton plasma and hydrogen atoms, are studied analytically. The plasma component interacts with hydrogen atoms through resonant charge exchange between the atoms and protons. To make the problem tractable, only short-wavelength disturbances are considered. Namely, the wavelength is assumed to be small as compared with the mean free path of atoms with respect to charge exchange. It is shown that short waves are damped out due to the charge exchange process, and the magnitude of decrement increases with the cross-section for charge exchange, number density of atoms and sound speed. In the first approximation, decrement does not depend on the wavelength, and acoustic waves are dispersionless. The advantage of our model is fully kinetic treatment of the interstellar atom motion.

Abstract Copyright: © 2014 The Author Published by Oxford University Press on behalf of the Royal Astronomical Society (2014)

Journal keyword(s): hydrodynamics - waves - ISM: atoms

Simbad objects: 1

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Number of rows : 1
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 NAME LIC Cld 04 41 +31.           ~ 317 0

Query : 2014MNRAS.441.2452C

Basic data :
NAME LIC -- Cloud
Other object types: otypes_help 		Cld ([GLV95])
ICRS coord. (ep=J2000) : 		04 41 12.0 +31 11 07 [ ] E 2008ApJ...673..283R
FK4 coord. (ep=B1950 eq=1950) : 		04 38 00.3 +31 05 22 [ ]
Gal coord. (ep=J2000) : 		170.0000 -10.0000 [ ]
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Identifiers (4) :
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NAME LIC NAME Local Cloud NAME Local Interstellar Cloud [GLV95] 1

References (317 between 1850 and 2026) (Total 317)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).
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