2020ApJ...899...72K

Query : 2020ApJ...899...72K

2020ApJ...899...72K - Astrophys. J., 899, 72-72 (2020/August-2)

Dynamics of the Parker-Jeans instability of gaseous disks including the effect of cosmic rays.

KUWABARA T. and KO C.-M.

Abstract (from CDS):

The effect of cosmic rays on the Parker-Jeans instability in magnetized self-gravitating gaseous disks is studied using three-dimensional magnetohydrodynamic simulations with cosmic rays taken as a massless fluid with notable pressure. Cosmic-ray diffusion along the magnetic field is taken into account in the simulation. The initial configuration of the disk is a magnetized cold gas slab sandwiched between hot coronae (on top and bottom). We show that cosmic rays play an important role in the formation of filaments or clumps in some parameter regimes. In a certain range of the thickness of the gas slab, the cosmic-ray diffusion coefficient plays a decisive role in determining whether the filaments lie along or perpendicular to the magnetic field. We also consider the effect of rotation on the system.

Abstract Copyright: © 2020. The American Astronomical Society. All rights reserved.

Journal keyword(s): Magnetohydrodynamical simulations - Interstellar clouds - Cosmic rays - Magnetic fields - Collapsing clouds

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 Gould Belt PoG ~ ~           ~ 956 1

Query : 2020ApJ...899...72K

Basic data :
NAME Gould Belt -- Part of a Galaxy
Other object types: otypes_help 		reg (), PoG ()
ICRS coord. (ep=J2000) : 		No Coord.
notes:

Hierarchy : number of linked objects
whatever the membership probability is (see description here ) :

: 20 		Display criteria :

Identifiers (2) :
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NAME Gould Belt NAME Gould's Belt

References (956 between 1850 and 2026) (Total 956)
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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