2008ApJ...679.1232W

Query : 2008ApJ...679.1232W

2008ApJ...679.1232W - Astrophys. J., 679, 1232-1238 (2008/June-1)

Dynamical models for disk galaxies with triaxial halos.

WIDROW L.M.

Abstract (from CDS):

We construct self-consistent dynamical models for disk galaxies with triaxial, cuspy halos. We begin with an equilibrium, axisymmetric, disk-bulge-halo system and apply an artificial acceleration to the halo particles. By design, this acceleration conserves energy and thereby preserves the system's differential energy distribution even as its phase-space distribution function is altered. The halo becomes triaxial, but its spherically averaged density profile remains largely unchanged. The final system is in equilibrium, to a very good approximation, so long as the halo's shape changes adiabatically. The disk and bulge are ``live'' while the halo is being deformed; they respond to the changing gravitational potential, but also influence the deformation of the halo. We test the hypothesis that halo triaxiality can explain the rotation curves of low surface brightness galaxies by modeling the galaxy F568-3.

Abstract Copyright: ∼

Journal keyword(s): Cosmology: Dark Matter - Galaxy: Kinematics and Dynamics - Methods: {em n}-Body Simulations - Methods: Statistical

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 LSB F568-3 LSB 10 26 59 +22 13.6           ~ 81 0

Query : 2008ApJ...679.1232W

Basic data :
LSB F568-3 -- Low Surface Brightness Galaxy
Other object types: otypes_help 		LSB (LSB)
ICRS coord. (ep=J2000) : 		10 26 59.0 +22 13 36 [ 37500 37500 90 ] E 1992AJ....103.1107S
FK4 coord. (ep=B1950 eq=1950) : 		10 24 14.3 +22 28 54 [ 37500 37500 90 ]
Gal coord. (ep=J2000) : 		213.3874 +56.9336 [ 37500 37500 90 ]
Radial velocity / Redshift / cz : 		V(km/s) 5850 [10] / z(~) 0.019707 [0.000033] / cz 5908.01 [9.89]
   D 1992AJ....103.1107S
Morphological type: 		Sd D ~
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Identifiers (1) :
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LSB F568-3

References (81 between 1850 and 2026) (Total 81)
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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Velocities : 1   

   

External archives :

Data at NED - NASA/IPAC Extragalactic Database : LSB F568-3

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