The SWIFT BAT Software Guide Version 6.3 30 ... - HEASARC - Nasa

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D.2. BATCELLDETECT 115 3. Same as example 1, but outputs the significance image to signif.img as well. batcelldetect skyimage.img srclist.fits 6.0 signifmap=signif.img D.2.8 SEE ALSO batfftimage D.2.9 LAST MODIFIED May 2007
116 APPENDIX D. BAT SOFTWARE TOOL REFERENCE D.3 BATCLEAN D.3.1 NAME batclean - read in a DPI and clean out a fit to the diffuse background D.3.2 USAGE batclean infile outfile incatalog [detmask] [options] D.3.3 DESCRIPTION This tool fits a simple background or source plus background model to a detector plane image. The code contains a default background model which is described below. The user can also specify one or more background models to be fit using the bkgmodel parameter. The output file can be either the cleaned focal plane (default), the fit to the detector plane or the original input file. The tool can also, optionally, balance the detector plane either before or after or instead of cleaning. See below under the “balance” parameter for more details. This code reads in a Detector Plane Image (DPI) file as well as an optional detector mask file. If no detector mask file is provided, then all detectors with non-zero data are included in the fit. The tool works on either flight or simulated flight data (sources at infinity) or ground calibration data (sources at a finite distance). See the description of the bat z parameter for more about cleaning of sources at a finite distance. Source Cleaning If one or more sources are to be cleaned from the DPI (default), then the tool reads the source locations from the incatalog file and then calls the routine maskwtimg which uses a forward projection to create a model of the source exposure through the aperture onto the detector plane. Background Cleaning The tool creates a simple eighteen parameter background model, which is described as follows: • 1 = constant, 2 = proportional to X, 3 = proportional to Y • 4 = proportional to X 2 , 5 = proportional to Y 2 • 6 = proportional to X Y, • 7 = Detector on left (-X) side of sandwiches: constant, • 8 = Left side detectors: proportional to X,
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The SWIFT BAT Software Guide Versio
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ii CONTENTS 4.4 How Sky Fluxes are
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iv CONTENTS 6 BAT Analysis Issues 5
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vi CONTENTS D.1.6 SEE ALSO . . . .
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viii CONTENTS D.10.2 USAGE . . . .
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x CONTENTS D.18.5 EXAMPLES . . . .
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xii CONTENTS
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2 CHAPTER 1. INTRODUCTION • Appen
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4 CHAPTER 2. BAT INSTRUMENT Figure
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8 CHAPTER 2. BAT INSTRUMENT The The
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20 CHAPTER 4. INTRODUCTION TO BAT A
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The SWIFT BAT Software Guide Version 6.3 30 ... - HEASARC - Nasa

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