Contents

• Introduction
  • XSPEC
  • New in Version 8
  • How to contact us
  • Relationship to FTOOLS
  • History
  • Acknowledgements
• Spectral Fitting and XSPEC
  • Introduction
  • The Basics of Spectral Fitting
  • The XSPEC implementation
    • C(I): The Observed Spectrum
    • R(I,E): The Instrumental Response
    • f(E): The Model Spectrum
    • Fits and Confidence Intervals
  • Helpful Hints
    • Scripts and the Save command
    • Simulations
    • Plotting Devices and Hardcopy
    • Data groups
    • What to do when you have small numbers of counts
    • Binning and Grouping data
    • How to shut XSPEC up (somewhat)
    • References
• An overview of XSPEC
  • Command syntax
  • Reading data
  • Defining models
  • Fitting
  • Plotting
  • Getting help
  • Simulated data
  • Fluxes, luminosities, and equivalent widths
  • Miscellaneous
• Walks through XSPEC
  • Introduction
  • Brief Discussion of XSPEC Files
  • Fitting Models to Data: An Example from EXOSAT
  • Fitting Data Files Simultaneously: Examples from Einstein and Ginga
  • Using XSPEC to Simulate Data: an Example from ASCA
  • Producing Plots: Modifying the Defaults
  • Figure Captions
• XSPEC commands
  • Summary of Commands
  • Description of Syntax
  • addcomp
    • Examples:
  • alias
    • /delete
    • /previous
    • /show
    • /system
    • /all
  • arf
    • Examples:
  • backgrnd
    • Examples:
  • buffer
  • chatter
    • Examples:
  • corfile
    • Examples:
  • cornorm
    • Examples:
  • cosmo
    • Examples:
  • cpd
  • data
    • filename
    • data set
    • datagroup
      • Examples:
  • delcomp
    • Examples:
  • dummyrsp
    • Examples:
  • dump
    • Examples:
  • eqwidth
    • Examples:
  • error
    • Examples:
  • exit
  • fakeit
    • Examples:
  • fit
    • Examples:
  • flux
    • Examples:
  • freeze
    • Examples:
  • gain
    • Algorithm
      • Examples:
  • hardcopy
  • help
    • Examples:
  • history
  • ignore
    • Examples:
  • iplot
  • log
    • Examples:
  • lumin
    • Examples:
  • model
    • Algebraic Format
    • Rules for Combining Models
    • Background Models
      • Examples:
  • newpar
    • Examples:
  • notice
    • Examples:
  • pause
    • Examples:
  • plot
    • chisq
    • contour
      • problems
        • Examples:
    • counts
    • data
    • delchi
    • efficien
    • eufspec
    • insensitv
    • ldata
    • model
    • ratio
    • residuals
    • sensitvty
    • sum
    • ufspec
  • prompt
  • query
    • no
    • on
    • yes
  • quit
  • recall
  • recornrm
    • Examples:
  • reexecute
    • Examples:
  • renorm
  • response
    • Examples:
  • save
    • Examples:
  • script
    • Examples:
  • setplot
    • channel
    • command
      • Example:
    • delete
      • Examples:
    • device
      • PGPLOT devices
        • sun
        • dec
        • vms
      • Examples:
    • energy
    • group
      • Examples:
    • list
    • rebin
      • Examples:
    • wave
  • show
  • statistic
  • steppar
    • Examples:
  • suggest
  • thaw
  • thleqw
    • Examples:
  • time
• XSPEC V8 Models
  • Summary of Models
  • Model descriptions
  • atable
  • bbody
  • bbodyrad
  • bknpower
  • bremss
  • cflow
  • compls
  • compst
  • constant
  • cutoffpl
  • cwabs
  • cyclabs
  • disk
  • diskbb
  • diskline
  • diskm
  • disko
  • dust
  • edge
  • expabs
  • expfac
  • gaussian
  • highecut
  • hrefl
  • meka
  • mewe
  • mkcflow
  • mtable
  • notch
  • pcfabs
  • pegpwrlw
  • pliref
  • plrefl
  • powerlaw
  • raymond
  • smedge
  • spline
  • SSS ice
  • step
  • tsabs
  • useradd1
  • usermul1
  • uvred
  • varabs
  • vbremss
  • vmeka
  • vmcflow
  • vraymond
  • wabs
  • wndabs
  • zbbody
  • zbremss
  • zedge
  • zgauss
  • zhighect
  • zpcfabs
  • zplrefl
  • zpowerlw
  • zvarabs
  • zwabs
  • zwndabs
• Associated programs
  • Introduction
  • FTOOLS reading tasks
    • FDUMP
    • DMPRMF
  • FTOOLS manipulation tasks
    • GRPPHA
    • RBNPHA
    • RBNRMF
    • FPARKEY
    • MATHPHA
    • ADDRMF
    • MARFRMF
  • FTOOLS conversion tasks
    • SF2PHA
    • RSP2RMF
    • STW2PHA
  • FTOOLS subroutines
• Overview of PLT
• Command summary
• XSPEC graphics
• Getting started with PLT
• Fitting with few counts/bin
• Theory
• Practice
• Adding models to XSPEC
• Standard models
  • Unix
  • VMS
• User models under VAX/VMS
  • Example
• Table models
• The XSPEC/PLT parser
• Introduction
• Basics
• Delimiting arguments
• Comments
• Quotes
• The infinite skip
• The continuation character
• The terminator
• The indirect character
• Matching keyword arguments
• Parser internal commands
  • %Echo%
  • %EDit%
  • %Log%
  • %N%
  • %Recall%
  • %Script%
• Associated programs
• RDPHA, RDRSP and RDHIS
• MKPHA and MKRSP
• CHANPHA
  • Command summary
  • Background, Correction and Response
    • Examples
  • Area, bsf, csf, detid, indices, and time
  • Analogue_gain, gain_coff, resolution_coeff, and collimator
  • Start_time and end_time
  • Bad_chan
    • Examples
  • Change
    • Examples
  • Exit
    • Examples
  • Group
    • Examples
  • Help
  • Prefix
  • Quit
  • Systematics
    • Examples
  • Write
    • Examples
• About this document ...