XMM-Newston RGS Spectrum of HR 1099 Image Credit: ESA The top panel shows the detected X-ray photons plotted as a function of the position on the detector (strip of nine CCDs) along the horizontal axis and as a function of the energy of the photons, as determined by the CCDs along the vertical axis. Two bands can be seen, the bottom one which is the brightest is the so-called first spectral order, the top one is the second spectral order. The middle and bottom panels are plots which show the intensity of detected photons versus their wavelength. Search for an Image: (Enter the name of an object.) Additions or Comments: Have we left anything out? Is there something you would like to have added to this page (a link to your own group's research page, for example...)? IMAGES | By Mission | Stars | Cataclysmic Variables | X-ray Binaries | Pulsars | Supernova Remnants & Planetary Nebulae | Galaxies | Active Galactic Nuclei | Clusters and Groups of Galaxies | X-ray/gamma-ray Background & Deep Fields | Solar System Objects | Gamma Ray Bursts HEASARC Home | Observatories | Archive | Calibration | Software | Tools | Students/Teachers/Public Last modified: Thursday, 26-Jun-2003 13:48:45 EDT