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Hubble Space Telescope
WFPC2 ISR 95-04

A Demonstration Analysis Script for Performing Aperture Photometry

-Brad Whitmore and Inge Heyer

July 1995


A demonstration IRAF/STSDAS script to perform aperture photometry on WFPC2 images of Omega-Cen has been developed and is described in this document. The primary goal is to provide an easy-to-use example that can help introduce observers to the use of scripts, and to demonstrate a few of the commonly used IRAF/STSDAS capabilities*. Two sections of auxiliary information are included. One section provides information on how to ownload the script and notes on running the script. The other section provides a list of other commonly used IRAF and STSDAS tasks for working with WFPC2 data, along with other useful information.

Figure 1.Portion of the Omega-Cen field showing two of the stars in common with Harris et al. (white squares and numbers) and the fainter objects (black circles and numbers).

1. - A Description of the Script
2. - Downloading the Files and Notes for Running the Script
3. - IRAF/STSDAS Tasks Used in This Script

* This has been developed and tested under IRAF version v2.10.3BETA (08/18/1994) for Sun OS 4.1