Name

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    REDSHIFT_AXIS

Purpose

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    For a plotting coordinate system that is set up in terms of
    cosmic time in Gyr, adds a redshift axis.

Category

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    Astro

Calling Sequence

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    REDSHIFT_AXIS, Z

Inputs

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    Z: Array of redshifts at which to label axis.

Keyword Parameters

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    XAXIS: XAXIS=0 for a lower x-axis, XAXIS=1 for an upper x-axis.
                  Default: XAXIS=1
    YAXIS: YAXIS=0 for a left y-axis, YAXIS=1, for a right y-axis.
                  Default: no y axis.
    H100: Hubble parameter in units of 100 km/s/Mpc. Required.
    OMEGAM: Total matter density at z=0. Required.
    OMEGALAMBDA: Total vacuum energy density at z=0. Required.
    LOOKBACK: Time is in lookback time (default is time since Big Bang).
    _EXTRA: Extra keywords are passed to AXIS procedure.

Outputs

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    Displays an axis showing redshift.

Example

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    FIXME

Modification History

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    Written by Jeremy Bailin 29 May 2013