Statistics – Computation
Scientific paper
Mar 1990
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990a%26a...229..441b&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 229, no. 2, March 1990, p. 441-451.
Statistics
Computation
269
Computational Astrophysics, Elliptical Galaxies, Galactic Evolution, Absorption Spectra, Autocorrelation, Dynamic Characteristics, Kinematic Equations, Line Of Sight, Line Shape, Line Spectra
Scientific paper
A new technique to analyze the kinematics of early-type galaxies is presented. The method is shown to be superior to classical methods because of its low sensitivity to template mismatching and its ability to unravel the line-of-sight integrated velocity distributions of early-type galaxies. The Fourier correlation quotient method is used to analyze the kinematics of NGC4621 along the projected major axis. The ratio of projected rotation velocity to projected velocity dispersion indicates that the flattening of NGC4621 is due to rotation. Explanations for the observed asymmetry of the velocity distributions along the line of sight are considered.
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