XMM-Newton Science Analysis System


omgsource (omgsource-1.9) [xmmsas_20160201_1833-15.0.0]

Meta Index / Home Page / The spectrum-selection window

Summary of the buttons

• Cancel Returns to the main window and any operations that have been performed (such as selecting or deleting a spectrum) are ignored.
• Okay If any spectrum regions have been selected the regions are processed and added to the current list of spectral regions.

• Delete The list of newly selected spectra is deleted and the image is redrawn- minus these extraction regions. Note that any spectra that existed at the start of the selection session will not be deleted- see main Main window buttons if you wish to delete every spectrum

• Compute Spectrum Causes omgrism to run and compute the spectrum, followed by omgrismplot. The spectrum-plot file is then displayed.

• Centroid Spectrum The selected position of the zeroth-order feature is centroided.

• Align Spectrum Allows the selected spectrum to be moved using the up/down/left/right arrow keys.

• Parameters Allows the user to change the input parameters to omgrism or omgrismplot.

• Start ds9 Causes the ds9 image displayer to be restarted - You should click this if the ds9 image disppears.

• Spectrum If marked then using the left
  right/up/down keyboard keys, the spectrum regions will be moved left/right/up/down, respectively.

• Left background If marked then using the left or right keyboard keys, the left background-region will be moved left or right, respectively, with respect to the central region.

• Right background If marked then using the left or right keyboard keys, the right background-region will be moved left or right, respectively, with respect to the central region.