The line of sight velocity distributions of simulated merger remnants

Details The line of sight velocity distributions of simulated merger remnants The line of sight velocity distributions of simulated merger remnants

2000-03-17

arxiv.org/abs/astro-ph/0003248v1

Mon.Not.Roy.Astron.Soc. 316 (2000) 315

Astronomy and Astrophysics

Astrophysics

11 pages, 14 figures; LaTeX source + postscript figures. Accepted for publication in MNRAS on February 23, 2000. For a version

Scientific paper

10.1046/j.1365-8711.2000.03475.x

We use Gauss-Hermite functions to study the line of sight velocity distributions in simulated merger remnants. Our sample contains sixteen remnants; eight produced by mergers between disk galaxies of equal mass and eight produced by mergers between disk galaxies with mass ratios of 3:1. The equal-mass mergers display a wide range of kinematic features, including counterrotation at large radii, orthogonally rotating cores, and misaligned rotational axes. Most of the unequal-mass remnants exhibit fairly regular disk-like kinematics, although two have kinematics more typical of the equal-mass remnants. Our results may be compared to observations of early type objects, including ellipticals with misaligned kinematic axes, counterrotating systems, and S0 galaxies.

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