Distance-class: An S4 class to represent projected distance to a galaxy

In kateharborne/SimSpin: SimSpin - A package for the kinematic analysis of galaxy simulations

An S4 class to represent projected distance to a galaxy

Description

An S4 class to represent projected distance to a galaxy

Usage

kpc_per_arcsec(x)

Mpc(x)

z(x)

Arguments

x	Distance object

Functions

• kpc_per_arcsec(): Query the kpc_per_arcsec of a Distance object

• Mpc(): Query the Mpc of a Distance object

• z(): Query the z of a Distance object

Slots

z

Describes the projected distance to a galaxy in units of redshift.

Mpc

Describes the projected distance to a galaxy in physical units of Mega-parsecs.

kpc_per_arcsec

Describes the projected distance to a galaxy in angular units of kilo-parsecs per arcsecond.

H0

Hubble constant. Default as Planck 2018 results where H0 = 68.4.

OmegaM

Omega matter, the relative component of energy in mass. Default as Planck 2018 results where OmegaM = 0.301.

OmegaL

Omega lambda, the relative component of energy in dark energy. Default as Planck 2018 results where OmegaL = 0.699.

OmegaR

Omega radiation, the relative component of the energy in radiation (including neutrinos). Default as Planck 2018 results where OmegaR = 8.985075e-5.

kateharborne/SimSpin documentation built on June 11, 2025, 7:16 p.m.