make.catalogue.apertures: Make Aperture Stamps

In AngusWright/LAMBDAR: Measure galaxy fluxes from an arbitrary FITS image using input aperture locations and dimensions

Make Aperture Stamps

Description

__This function is not designed to be called directly, but rather is an internal function to measure.fluxes__

Create a length (m) list of (n,n) arrays, containing object apertures given input aperture parameters

Usage

make.catalogue.apertures(outenv=parent.env(environment()),env=NULL)
make.gaussian.apertures(outenv=parent.env(environment()),env=NULL)
make.segmentation.apertures(outenv=parent.env(environment()),env=NULL)

Arguments

env	environment; the environment containing the parameters used in ‘measure.fluxes’
outenv	environment; the environment where the returned values are to be stored. If not provided, outenv defaults to the input env.

Details

Aperture parameters, which are used in the creation of the aperture stamps, are stored in the parameter environment ‘env’. The returned list of aperture stamps is sent to ‘outenv’. If not supplied, ‘outenv’ is set to be the same environment as ‘env’. The function make.catalogue.apertures creates boxcar apertures from the parameters provided. The make.gaussian.apertures function creates gaussian apertures, assuming that the axis parameters provided in the catalogue are gaussian StDevs. The make.segmentation.apertures function creates apertures from an input segmentation image, of arbitrary resolution.

Value

numeric [[m]][n,n] list; aperture stamps with pixel range [0,1]

Author(s)

Angus H Wright ICRAR [e-mail]

See Also

measure.fluxes, flux.measurements

AngusWright/LAMBDAR documentation built on Sept. 19, 2024, 10:26 a.m.