Using SAOImage ds9 - CIAO 4. 17 - Harvard University The next time ds9 is started, this file is read and the preferences are used Important: as mentioned before, the preference files are generally not backward-compatible This means a ds9 prf created by a newer version of ds9 may react badly with the ds9 packaged
True Color Images in ds9 - CIAO 4. 17 - Harvard University ds9 will open with the three files in one frame, as shown in Figure 1; the "Scale" is set to "log: minmax" The RGB window (Figure 2) should open as well If it doesn't, open it from the "Frame → RGB " menu Use the binning and zoom options in ds9 to adjust the image so that the full region of interest is visible
Analysis Guide: Video Demos and Tutorials - CIAO 4. 17 - Harvard University 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) More than that, the user can interact with the sources and the source lists
Accessing the CSC with DS9 and TOPCAT - CSC - Harvard University In this thread, the SAMP option in the DS9 File menu is used to send CSC2 data loaded into DS9 to TOPCAT, which is an interactive graphical viewer and editor for tabular data In doing so, you can interact with DS9 and TOPCAT simultaneously, e g you can view TOPCAT scatter plots of any combination of catalog source properties for the sources
FAQ: Create images with SAOImageDS9 in a notebook - CIAO 4. 17 ! ds9 broad_flux img-region 15296 fov-scale log-cmap viridis \ -pan to 4012 4416 physical-zoom 2 \ -saveimage png zoom png-exit Image ( "zoom png" ) An alternative is to run DS9 interactively to create the desired image, then back it up - using the File Backup menu item - and then restore it in the notebook to create the image
Creating Source and Background Files - CIAO 4. 17 - Harvard University After choosing "OK" in the region filename dialog, a format dialog is opened Set the format to "ds9" and the coordinate system to "Physical" Note that in this case the region file must be saved in ds9 format in order for the necessary grouping information to be retained This is contrary to the usual guideline that the CIAO region format
Using the Output of Detect Tools - CIAO 4. 17 - Harvard University In ds9: load the event file and display the source list on top of it To save the regions in another format: Region → Save Regions → Save As "acisf02254_src_ds9 reg" After choosing "OK" in the region filename dialog, a format dialog is opened
Estimate Source Counts in an Event File - CIAO 4. 17 - Harvard University From ds9 select the top-level Analysis menu and then CIAO This is the top level menu of all the CIAO tasks that are available in ds9 To get the net counts, simply go to Statistics and then Net Counts ds9 will then run dmextract with the data that are
Can I use a newer version of ds9 than the one packaged with CIAO? The Preferences section of the ds9 manual contains more information on avoiding this problem when supporting multiple versions of ds9 For more general information on how to use ds9, refer to the Using SAOImage ds9 thread
Imaging Threads - CIAO 4. 17 - Harvard University The Imaging threads cover a wide range of topics that include source detection, creating exposure maps and normalized images, and calculating image statistics