paper

The line of sight velocity distributions of simulated merger remnants

arXiv:astro-ph/0003248 · doi:10.1046/j.1365-8711.2000.03475.x

Abstract

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.

11 pages, 14 figures; LaTeX source + postscript figures. Accepted for publication in MNRAS on February 23, 2000. For a version with high-resolution figures, formatted for 8.5x11 paper, see http://www.ifa.hawaii.edu/faculty/barnes/lsvdsmr.html

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