binney: Function to compute <v/sigma> as defined by Binney (2005)

In oczoske/slacR: R-package to measure v and sigma from VIMOS IFU cubes

Description

This function computes <v/sigma> as appropriate for two-dimensional kinematic data.

Usage

binney(kinmap, SN.lim = 0, SN.plot = FALSE, title = NULL, ...)

Arguments

kinmap	a kinematic map with velocity and velocity dispersion, given as a file name, an object of class kinmap or as a data.frame containing the relevant columns
SN.lim	Lower signal-to-noise limit of data points that are to be used in the computation.
SN.plot	Create a plot of <v/sigma> against signal-to-noise limit. This clarifies the dependence on SN.lim and may help in choosing an appropriate value.
title	A title for the SN.plot.
...	further arguments passed to or from other methods.

Value

Just a number

Author(s)

Oliver Czoske

References

Binney, J.: "Rotation and anisotropy of galaxies revisited", MNRAS 363, 937 (2005)

See Also

lambdaR, v.sig.2d

oczoske/slacR documentation built on May 20, 2019, 8:23 p.m.