SPEX User's Manual - SRON

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38 Syntax overview plot type data - Plot the data on the selected graphics device(s) plot ux angstrom - Set the x-axis plot units to Å plot uy angstrom - Set the y-axis plot units to Counts/s/Å plot frame new - Open a new frame in the selected graphics device(s) plot frame 2 - Go to the 2nd frame, all plot commands will now only affect frame 2 plot type chi - Plot the residuals in frame 2 plot uy rel - Set the y-axis plot units in frame 2 to (Obsereve - Model)/Model plot view default f - Set the default viewport keyword to false so that new user viewport values can be specified for frame 2 plot view y2 0.2 - Set the upper y viewport limit of frame 2 to 0.2 of the full device window plot cap id disp f - Do not display the id caption of frame 2 plot cap ut disp f - Do not display the upper top caption of frame 2 plot cap lt disp f - Do not display the lower top caption of frame 2 plot ux a - Set the x-axis plot units of frame 2 to Å plot ry -1 1 - Set the y-axis plot range of frame 2 to between a lower limit of -1 and an upper limit of 1 plot frame 1 - Go to frame 1 plot view default f - Set the default viewport keyword to false so that new user viewport values can be specified for frame 1 plot view y1 0.25 - Set the lower y viewport limit of frame 1 to 0.25 of the full device window plot de cps filename.ps - Open a colour postscript graphics device and write the output file to filename.ps plot - Redraw the plot on all frames and devices plot close 2 - Close device number 2, which is the postscript device in this case 2.23 Quit: finish the program The quit option exits the execution of <strong>SPEX</strong>, closes the open plot-devices and scratch files (if any) and, if requested outputs the cpu-time statistics. Syntax The following syntax rule applies: quit - quit the program as described above. 2.24 Sector: creating, copying and deleting of a sector Overview This allows one to create, delete, copy and show the number of sectors, used for the analysis of the data. A sector is a region on the sky with its own spectral model, or a part of the lightcurve of a variable source with its time dependent spectrum, etc. See for more details about sectors and regions section 1.2. For doing spectral fitting of data sets, the sectors need to be specified in the response matrix of the data: the response file should tell which sector number corresponds to a given part of the matrix. Syntax The following syntax rules apply: sector new - Creates a new sector, which can have its own model. sector show - Gives the number of sectors that are currently used. sector copy #i - Copies the model for sector #i to a new sector.
2.25 Shiftplot: shift the plotted spectrum for display purposes 39 sector delete #i - Deletes sector #i. Examples sector new - Creates a new sector. sector copy 2 - Creates a new sector, with the same spectral model as used in sector 2. This can be useful if the spectra of the different sectors are very similar in composition. sector delete 3 - Deletes sector number 3. 2.25 Shiftplot: shift the plotted spectrum for display purposes Overview This command shifts the observed spectrum as well as the model spectrum by adding a constant or by multiplying a constant, as far as plots are concerned. The true data files do not change, so the shift is only for representational purposes. There are basically two options, indicated by the mode variable plotshift: For plotshift=1, a constant shift is added to the plotted spectrum of a given part of the data, for plotshift=2 the plotted spectrum is multiplied by the constant shift. The multiplicative constant shift (plotshift=2) is generally preferred for log-log plots, while for linear plots a constant additive shift (plotshift=1) is preferred. Warning: In the case of addition (plotshift=1), the addition constant is given in counts/s. This thus leads to a different (energy-dependent) constant being added to the plotted spectrum if the units are not in counts/s. For the multiplicative case this is of course not the case. Syntax The following syntax rules apply: shiftplot #i #r - #i indicates whether a constant should be added (#i=1) or multiplied (#i=2) to the spectrum and model. #r is then the constant to be added or multiplied by. shiftplot [instrument #i1:] [region #i2:] #i3 #r - Shift the plot using a factor #r. Here #i3 (= plotshift) determines whether the constant is added (plotshift=1) or multiplied (plotshift=2). The optional instrument range #i1: can be used to select a single instrument or range of instruments for which the shift needs to be applied, and the optional region range #i2: the region for these instruments. Examples shiftplot 1 2.0 - Adds 2 counts/s to the plotted spectrum. Since no instrument or region is specified, this applies for all spectra. shiftplot 2 10.0 - Multiplies the plotted spectrum by a factor of 10.0 shiftplot instrument 1 region 2 1 2 - Adds 2 counts/s to the plotted spectrum for the data from instrument 1 and region 2. shiftplot region 2:3 1 2 - Adds 2 counts/s to the plotted spectrum for the data for all instruments and regions 2−3.
Page 1: SPEX User’s Manual Jelle Kaastra
Page 4 and 5: 4 CONTENTS 2.29 System . . . . . .
Page 6 and 7: 6 CONTENTS 5.8.3 ASCA SIS0 . . . .
Page 8 and 9: 8 Introduction 1.2.2 Sky sectors Fi
Page 10 and 11: 10 Introduction
Page 12 and 13: 12 Syntax overview Table 2.2: Abund
Page 14 and 15: 14 Syntax overview tcl: the continu
Page 16 and 17: 16 Syntax overview Examples calc -
Page 18 and 19: 18 Syntax overview by averaging the
Page 20 and 21: 20 Syntax overview dem gene #i1 #i2
Page 22 and 23: 22 Syntax overview distance om #r -
Page 24 and 25: 24 Syntax overview Examples elim 0.
Page 26 and 27: 26 Syntax overview This is strictly
Page 28 and 29: 28 Syntax overview Currently these
Page 30 and 31: 30 Syntax overview Syntax The follo
Page 32 and 33: 32 Syntax overview status, range an
Page 34 and 35: 34 Syntax overview par write mypar
Page 36 and 37: 36 Syntax overview plot box col #i
Page 40 and 41: 40 Syntax overview 2.26 Simulate: S
Page 42 and 43: 42 Syntax overview step axis 2 par
Page 44 and 45: 44 Syntax overview Examples use 100
Page 46 and 47: 46 Syntax overview width. On top of
Page 48 and 49: 48 Syntax overview
Page 50 and 51: 50 Spectral Models acronym pow delt
Page 52 and 53: 52 Spectral Models Finally, we have
Page 54 and 55: 54 Spectral Models where Q is the l
Page 56 and 57: 56 Spectral Models 3. set=3: for R
Page 58 and 59: 58 Spectral Models 3.14 Hot: collis
Page 60 and 61: 60 Spectral Models can be transform
Page 62 and 63: 62 Spectral Models The emission mea
Page 64 and 65: 64 Spectral Models 3.23 Refl: Refle
Page 66 and 67: 66 Spectral Models • type=3: b 1
Page 68 and 69: 68 Spectral Models 4.8, 4.9, 5.0 wi
Page 70 and 71: 70 More about plotting Table 4.1: A
Page 72 and 73: 72 More about plotting 4.4 Plot lin
Page 74 and 75: 74 More about plotting Table 4.2: A
Page 76 and 77: 76 More about plotting 4.6 Plot cap
Page 78 and 79: 78 More about plotting 4.8 Plot axi
Page 80 and 81: 80 More about plotting bin cou cs k
Page 82 and 83: 82 More about plotting
Page 84 and 85: 84 Response matrices models. Since
Page 86 and 87: 86 Response matrices Table 5.1: Wei
Page 88 and 89:
88 Response matrices Table 5.2: Sca
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90 Response matrices since the larg
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92 Response matrices Figure 5.1: Di
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94 Response matrices for the Cauchy
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96 Response matrices bin j of this
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98 Response matrices The approximat
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100 Response matrices particular bi
Page 102 and 103:
102 Response matrices reduced by ab
Page 104 and 105:
104 Response matrices where as befo
Page 106 and 107:
106 Response matrices 5. Determine
Page 108 and 109:
108 Response matrices practical pro
Page 110 and 111:
110 Response matrices Table 5.10: T
Page 112 and 113:
112 Response matrices Table 5.11: F
Page 114 and 115:
114 Response matrices Figure 5.7: B
Page 116 and 117:
116 Response matrices Table 5.15: R
Page 118 and 119:
118 Response matrices
Page 120 and 121:
120 Installation and testing
Page 122 and 123:
122 Acknowledgements
Page 124 and 125:
124 BIBLIOGRAPHY [2003] Peterson, J
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SPEX User's Manual - SRON

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