angdist: Angular Diameter Distance

In astro: Astronomy Functions, Tools and Routines

Description

Calculates angular diameter distance

Usage

angdist(z = 1, c = 3E8, H = 70, M = 0.3, L = 1-M, K = 1-M-L, units = "Mpc")

Arguments

z	redshift
c	speed of light (m/s)
H	Hubble constant (km/s/Mpc)
M	Omega M - matter
L	Omega L - energy
K	Omega K - curvature
units	output units [Mpc/ly/m]

Value

Angular diameter distance in indicated units to the given redshift with the given cosmology. Note that this function is only valid for values of K >= 0.

Author(s)

Lee Kelvin <[e-mail]>

References

Hogg D. W., 1999, ArXiv Astrophysics e-prints, arXiv:astro-ph/9905116

See Also

The astronomy package: astro.

astro documentation built on May 2, 2019, 2:14 a.m.