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SPEX User's Manual - SRON

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Contents<br />

1 Introduction 7<br />

1.1 Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7<br />

1.2 Sectors and regions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7<br />

1.2.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7<br />

1.2.2 Sky sectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8<br />

1.2.3 Detector regions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8<br />

1.3 Different types of spectral components . . . . . . . . . . . . . . . . . . . . . . . . 8<br />

2 Syntax overview 11<br />

2.1 Abundance: standard abundances . . . . . . . . . . . . . . . . . . . . . . . . . . 11<br />

2.2 Ascdump: ascii output of plasma properties . . . . . . . . . . . . . . . . . . . . . 13<br />

2.3 Bin: rebin the spectrum . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15<br />

2.4 Calculate: evaluate the spectrum . . . . . . . . . . . . . . . . . . . . . . . . . . . 15<br />

2.5 Comp: create, delete and relate spectral components . . . . . . . . . . . . . . . . 16<br />

2.6 Data: read response file and spectrum . . . . . . . . . . . . . . . . . . . . . . . . 17<br />

2.7 DEM: differential emission measure analysis . . . . . . . . . . . . . . . . . . . . 18<br />

2.8 Distance: set the source distance . . . . . . . . . . . . . . . . . . . . . . . . . . . 20<br />

2.9 Egrid: define model energy grids . . . . . . . . . . . . . . . . . . . . . . . . . . . 22<br />

2.10 Elim: set flux energy limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23<br />

2.11 Error: Calculate the errors of the fitted parameters . . . . . . . . . . . . . . . . . 24<br />

2.12 Fit: spectral fitting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25<br />

2.13 Ibal: set type of ionisation balance . . . . . . . . . . . . . . . . . . . . . . . . . . 26<br />

2.14 Ignore: ignoring part of the spectrum . . . . . . . . . . . . . . . . . . . . . . . . 27<br />

2.15 Ion: select ions for the plasma models . . . . . . . . . . . . . . . . . . . . . . . . 27<br />

2.16 Log: Making and using command files . . . . . . . . . . . . . . . . . . . . . . . . 28<br />

2.17 Menu: Menu settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29<br />

2.18 Model: show the current spectral model . . . . . . . . . . . . . . . . . . . . . . . 30<br />

2.19 Multiply: scaling of the response matrix . . . . . . . . . . . . . . . . . . . . . . . 30<br />

2.20 Obin: optimal rebinning of the data . . . . . . . . . . . . . . . . . . . . . . . . . 31<br />

2.21 Par: Input and output of model parameters . . . . . . . . . . . . . . . . . . . . . 31<br />

2.22 Plot: Plotting data and models . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34<br />

2.23 Quit: finish the program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38<br />

2.24 Sector: creating, copying and deleting of a sector . . . . . . . . . . . . . . . . . . 38<br />

2.25 Shiftplot: shift the plotted spectrum for display purposes . . . . . . . . . . . . . 39<br />

2.26 Simulate: Simulation of data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40<br />

2.27 Step: Grid search for spectral fits . . . . . . . . . . . . . . . . . . . . . . . . . . . 41<br />

2.28 Syserr: systematic errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

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