Master thesis - UBC Physics & Astronomy

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4 M. Alexandersen : Master thesis 7 Testing and final debugging 77 7.1 Testing starting boundaries . . . . . . . . . . . . . . . . . 81 7.1.1 Final boundaries . . . . . . . . . . . . . . . . . . . 86 7.2 Final test . . . . . . . . . . . . . . . . . . . . . . . . . . . 87 7.2.1 The DDD results . . . . . . . . . . . . . . . . . . . 87 7.2.2 The mean/median θ 2 branch . . . . . . . . . . . . . 89 7.3 Important plots . . . . . . . . . . . . . . . . . . . . . . . . 91 8 Results 96 8.1 Final results . . . . . . . . . . . . . . . . . . . . . . . . . . 97 9 Discussion and possible extensions of this work 118 9.1 The data used . . . . . . . . . . . . . . . . . . . . . . . . . 118 9.2 The mean θ 2 method . . . . . . . . . . . . . . . . . . . . . 119 9.3 Background subtraction . . . . . . . . . . . . . . . . . . . 122 9.4 User interaction with programme . . . . . . . . . . . . . . 124 9.5 Energy range used . . . . . . . . . . . . . . . . . . . . . . 124 9.6 Integrated counts . . . . . . . . . . . . . . . . . . . . . . . 125 9.7 Point spread function . . . . . . . . . . . . . . . . . . . . . 126 9.8 Use of ds9 . . . . . . . . . . . . . . . . . . . . . . . . . . . 126 9.9 Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127 9.9.1 Comparison with literature . . . . . . . . . . . . . . 128 9.9.2 New haloes discovered . . . . . . . . . . . . . . . . 129 10 Conclusion 131 11 Bibliography 133 12 Acknowledgements 135 A Abbreviations 136 B The illusion 137 C Downloading data from the Swift archive 138 D Examples of output data files 150 D.1 GRB070129fitparams.txt . . . . . . . . . . . . . . . . . . . 150 D.2 GRB070129bestpeak.txt . . . . . . . . . . . . . . . . . . . 153 D.3 GRB070129meandata.txt . . . . . . . . . . . . . . . . . . . 154 E Information about the data downloaded from the Swift archive 156 F Results: SN vs. distance plots 158
M. Alexandersen : Master thesis 5 G My IDL code 167 G.1 meta . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 167 G.2 object . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 168 G.3 ftoolsreducea . . . . . . . . . . . . . . . . . . . . . . . . . 169 G.4 blacknwhite . . . . . . . . . . . . . . . . . . . . . . . . . . 172 G.5 grbnameauto . . . . . . . . . . . . . . . . . . . . . . . . . 172 G.6 main . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 173 G.7 ftoolsreduceb . . . . . . . . . . . . . . . . . . . . . . . . . 176 G.8 loglogmere . . . . . . . . . . . . . . . . . . . . . . . . . . 181 G.9 loglogmerebaggrund . . . . . . . . . . . . . . . . . . . . . 184 G.10 fitcurves . . . . . . . . . . . . . . . . . . . . . . . . . . . 195 G.10.1 lorentz1 . . . . . . . . . . . . . . . . . . . . . . . . 210 G.10.2 lorentz2 . . . . . . . . . . . . . . . . . . . . . . . . 210 G.10.3 lorentz2 . . . . . . . . . . . . . . . . . . . . . . . . 210 G.10.4 constantlorentz1 . . . . . . . . . . . . . . . . . . . 211 G.10.5 constantlorentz2 . . . . . . . . . . . . . . . . . . . 211 G.10.6 constantlorentz3 . . . . . . . . . . . . . . . . . . . 211 G.10.7 power . . . . . . . . . . . . . . . . . . . . . . . . . 212 G.10.8 powerlorentz1 . . . . . . . . . . . . . . . . . . . . . 212 G.10.9 powerlorentz2 . . . . . . . . . . . . . . . . . . . . . 213 G.10.10powerlorentz3 . . . . . . . . . . . . . . . . . . . . . 213 G.11 meantheta2 . . . . . . . . . . . . . . . . . . . . . . . . . . 213
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Figure 42. DDD for 10 GRBs. M. Alex
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Master thesis - UBC Physics & Astronomy

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