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I've not really looked at the page yet; but already I know that I need HELP! WebSpec is a WWW interface for the X-ray spectral fitting package, XSPEC. Iit can be used to simulate spectral data for a variety of X-ray missions/instruments. Choose a Mission/Instrument Chandra ACIS-I on-axis Chandra ACIS-I 2' off-axis Chandra ACIS-I 4' off-axis Chandra ACIS-I 6' off-axis Chandra ACIS-S on-axis Chandra ACIS-S 2' off-axis (away from ACIS-I) Chandra ACIS-S 2' off-axis (toward ACIS-I) Chandra HEG (order 0) Chandra HEG (order 1) Chandra HEG (order -1) Chandra HEG (order 2) Chandra HEG (order -2) Chandra HEG (order 3) Chandra HEG (order -3) Chandra LETG/ACIS (order 0) Chandra LETG/ACIS (order 1) Chandra LETG/ACIS (order -1) Chandra LETG/ACIS (order 2) Chandra LETG/ACIS (order -2) Chandra LETG/ACIS (order 3) Chandra LETG/ACIS (order -3) Chandra LETG/HRC (order 1) Chandra LETG/HRC (order -1) Chandra LETG/HRC (order 2) Chandra LETG/HRC (order -2) Chandra LETG/HRC (order 3) Chandra LETG/HRC (order -3) Chandra LETG/HRC (order 4) Chandra LETG/HRC (order -4) Chandra LETG/HRC (order 5) Chandra LETG/HRC (order -5) Chandra LETG/HRC (order 6) Chandra LETG/HRC (order -6) Chandra MEG (order 1) Chandra MEG (order -1) Chandra MEG (order 2) Chandra MEG (order -2) Chandra MEG (order 3) Chandra MEG (order -3) Suzaku XIS BI (6 arcmin region at standard position) Suzaku XIS BI (6 arcmin region at HXD position) Suzaku XIS BI (uniform field) Suzaku XIS 2FI (6 arcmin region at XIS position) Suzaku XIS 2FI (6 arcmin region at HXD position) Suzaku XIS 2FI (uniform field) Suzaku HXD PIN (at XIS pointing position) Suzaku HXD PIN (at HXD pointing position) Suzaku HXD GSO (at XIS pointing position) Suzaku HXD GSO (at HXD pointing position) XMM EPIC MOS1 CCD with thin filter XMM EPIC MOS1 CCD with medium filter XMM EPIC MOS1 CCD with thick filter XMM EPIC MOS2 CCD with thin filter XMM EPIC MOS2 CCD with medium filter XMM EPIC MOS2 CCD with thick filter XMM EPIC pn CCD with thin filter XMM EPIC pn CCD with medium filter XMM EPIC pn CCD with thick filter Constellation-X SXT RXTE HEXTE RXTE PCA 3 PCUs (Layer 1 only) RXTE PCA 3 PCUs (Layers 1+2+3) RXTE PCA 3 PCUs (TEST) Swift XRT Photon Counting Mode (Grade 0) Swift XRT Photon Counting Mode (Grades 0-12) Swift XRT Windowed Timing Mode (Grade 0) Swift XRT Windowed Timing Mode (Grades 0-2) Swift BAT on-axis, imaged (background-subtracted) Swift UVOT U Grism Swift UVOT V Grism ASCA GIS ASCA SIS BeppoSAX LECS BeppoSAX MECS BeppoSAX PDS BeppoSAX HPGSPC ROSAT PSPC Specify the desired model expression by clicking on a model in the scroll box and indicating via the checkbox whether you want pileup and/or photoelectric absorption. Pile-up. X Photoelectric Absorption. X Available Models Black Body Power Law Broken Pow Law Power Law with cutoff Power Law + Black Body Power Law + Gaussian Power Law + Disk Line Emission APEC BAPEC Meka w/Fe Meka w/Fe (abund) Raymond-Smith Thermal Brems Multi-temp Plasma For the more experienced XSPEC users, an advanced version of WebSpec is available allowing models with up to 9 components. Okay, I have read this page; but I still need HELP! Feedback or questions ? HEASARC Home | Observatories | Archive | Calibration | Software | Tools | Students/Teachers/Public

Science Mission Directorate Universe Division Beyond Einstein | Origins FAQ/Comments/Feedback Education Resources Find helper applications like Adobe Acrobat A service of the Astrophysics Science Division at NASA/ GSFC and the High Energy Astrophysics Division of the Smithsonian Astrophysical Observatory (SAO) HEASARC Director: Dr. Alan P. Smale HEASARC Associate Director: Dr. Roger Brissenden Responsible NASA Official: Phil Newman Web Curator: Karen Smale Privacy Policy and Important Notices.

This file was last modified on Monday, 15-Dec-2008 22:56:12 EST