Chandra EducationChandra Education
Chandra Education Home PageInstallation PageLearning ds9 PageImages & Activities PageEvaluation Page
Learning ds9: Overview | Part 1 | Part 2 | Part 3[Contact Help] [Chandra Public Page]
o


Part 1 Section Contents
Part 1: First Look Qualitative Analysis using ds9

Learning to Use the ds9 Imaging System

Part 1: First Look Qualitative Analysis using ds9

A quick list of the basic techniques of X-ray analysis:


Closing an Image
  • When you are finished using the Cas A image, clear the frame by using the "Clear Frame" command. You will find this in the main "Frame" pull down menu at the top of the ds9 window. You can also click on Frame in the lower "short cuts" menu bar and the Frame options will appear on the bottom line.

First Look, Summary

Astronomers use different colors and contrasts to make the features of an image easier to recognize by eye. This sort of "first look" qualitative analysis of data is very important, because it gives direction to further investigation. ds9 supports a number of other qualitative techniques that you can learn to further investigate an image.

Next: Part 2: More Features for Qualitative Analysis



Last updated: 05/11/05



bar

Chandra Ed. Home Page | Installation | Learning ds9 | Activities & Images | Evaluation
Learning ds9: Overview | part 1 | part 2 | part 3
Resources: ds9 | Chanda Public Information & Education

Harvard-Smithsonian Center for Astrophysics
60 Garden Street, Cambridge, MA 02138 USA
Phone: 617.496.7941  Fax: 617.495.7356 		Comments & Questions?
cxcedu@cfa.harvard.edu

This site was developed with funding from NASA under Contract NAS8-39073.