- True Color Images in ds9 - CIAO 4. 17 - Harvard University
The smoothing capability in ds9 lets you interactively smooth the data, as opposed to running the CIAO tools aconvolve or csmooth For quantitative data analysis, the configurable CIAO tools are more appropriate, but ds9 does a nice job for publication purposes
- Watch Out Page - CIAO 4. 17 - Harvard University
SAOImage DS9 DS9 is not compatible with Ubuntu 25 10 (01 Dec 2025) Neither SAOImageDS9 v8 6 nor v8 7b2 are currently compatible with Ubuntu 25 10 Help, I am unable to create regions in ds9! By default, ds9 will no longer create regions when it starts; that is, clicking in the ds9 window will not create a region This is because the ds9 interface has changed in version 7 3 2 (released in
- Chandra Newsletter Article
While DS9 continues to be an independent project serving all fields of astronomy (and beyond), the collaboration with the SDS group has led to several exciting updates specifically of interest to the Chandra CIAO community (see also our previous newsletter article “CIAO and DS9: a powerful pair through DAX ” by Glotfelty et al 2020)
- Creating Energy Hue Maps - CIAO 4. 17
The color map is the standard ds9 "rainbow" colormap, but inverted so that red maps to the lowest energies (1200eV) and violet maps to the highest energies (3000eV)
- Ahelp: dmregions - CIAO 4. 17 - Harvard University
DS9 regions CIAO understands most of the simple, atomic regions that DS9 can draw including circle, ellipse, point, box, polygons, and annulus The regions that are purely for annotations such as text, line, vector, ruler, projection, and compass are simply ignored
- Chandra CIAO 2025 Workshop
Using dmcoords, dmstat, dmlist, or ds9+dax, determine the CCD_ID where the bright source in the center of the field is located Use dmcopy to exclude the wavdetect sources detected in Exercise 10 step 3 from the reprocessed Level 2 event file
- Manuals Memos - CIAO 4. 17 - Harvard University
The CIAO software package for analyzing data from X-ray telescopes, including the Chandra X-ray telescope
- Analysis Guide: Video Demos and Tutorials - CIAO 4. 17
The ds9 catalog tool allows users to annotate their images with markers for sources from many different catalogs (including the Chandra Source Catalog and users own source list, eg output from CIAO's wavdetect, celldetect, and vtpdetect)
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