Smoot Lensing Subgroup





SAOImage DS9 is an application we use for viewing .fits images.

IDL is a programming language we use to analyze our data.

This is our code:

Below are a few useful 'routines' that I have needed:

This will allow you to output your plot to a postscript file:

IDL> entry_device =!
IDL> set_plot, 'PS'
IDL> device, filename=''
IDL> plot,x,y [this assumes you've already chosen x and y as variables]
IDL> device, /close_file
IDL> set_plot, entry_device

SExtractor is an application that makes a catalog of objects from a .fits image.