@phdthesis{oai:sucra.repo.nii.ac.jp:00010359,
 author = {安田, 哲也},
 month = {},
 note = {126 p., 1 Introduction 11
2 Review 13
2.1 Physical Parameters in Rotation Powered Pulsars . . . . . . . . . . . . . . . 14
2.2 Overview of AXPs and SGRs . . . . . . . . . . . . . . . . . . . . . . . . . . 17
2.3 Persistent X-ray Emission from AXPs and SGRs . . . . . . . . . . . . . . . . 19
2.3.1 Time Variation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
2.3.2 Energy Spectra . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
2.4 Burst Emission from AXPs and SGRs . . . . . . . . . . . . . . . . . . . . . 22
2.4.1 Giant Flare . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
2.4.2 Intermediate Flare . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
2.4.3 Short burst . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
2.5 Magnetars Hypothesis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
2.5.1 Magnetized Neutron Star Model . . . . . . . . . . . . . . . . . . . . . 28
2.5.2 Interesting Phenomena in Strong Magnetic Field . . . . . . . . . . . . 29
2.5.3 Alternative Models for AXPs and SGRs . . . . . . . . . . . . . . . . 30
2.6 Target Object; AXP 1E 1547.0-5408 . . . . . . . . . . . . . . . . . . . . . . 30
2.6.1 Overview of AXP 1E 1547.0-5408 . . . . . . . . . . . . . . . . . . . 30
2.6.2 Activity on 2008 October and 2009 January . . . . . . . . . . . . . . 31
2.7 Scope of Present Thesis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
3 Instrumentation 33
3.1 Suzaku Wide-band All-sky Monitor . . . . . . . . . . . . . . . . . . . . . . . 33
3.1.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
4 CONTENTS
3.1.2 Electronics for WAM . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
3.1.3 Energy Calibreation . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
3.1.4 Generating Energy Response Matrix . . . . . . . . . . . . . . . . . . 39
3.2 Other Instruments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
3.2.1 Swift Burst Alert Telescope . . . . . . . . . . . . . . . . . . . . . . . 39
3.2.2 Swift X-ray Telescope . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
3.2.3 Fermi Gamma-ray Burst Monitor . . . . . . . . . . . . . . . . . . . . 42
3.2.4 INTEGRAL Anti-Coincidence System . . . . . . . . . . . . . . . . . 43
4 Observation and Data Reductioin 45
4.1 Observation of Bursts from AXP 1E 1547.0-5408 with WAM . . . . . . . . 45
4.2 Observations with Other Instruments . . . . . . . . . . . . . . . . . . . . . . 48
4.2.1 Observation with Swift BAT and XRT . . . . . . . . . . . . . . . . . 48
4.2.2 Observation with Fermi GBM . . . . . . . . . . . . . . . . . . . . . . 50
4.2.3 Observation with INTEGRAL ACS . . . . . . . . . . . . . . . . . . . 50
5 Analysis and Results 55
5.1 Temporal Analysis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
5.1.1 Burst Detections with the WAM . . . . . . . . . . . . . . . . . . . . 56
5.1.2 Search for WAM Bursts Simultaneously Detected with Other Instru-ments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
5.1.3 Estimation of Incident Angles of Bursts by the WAM . . . . . . . . . 57
5.1.4 Correlation Searches from WAM Selected Bursts . . . . . . . . . . . . 61
5.2 Preparations for Spectral Analysis . . . . . . . . . . . . . . . . . . . . . . . . 64
5.2.1 Response Matrixes Generation . . . . . . . . . . . . . . . . . . . . . . 64
5.2.2 Data Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
5.2.3 Development of Pile-up Simulator . . . . . . . . . . . . . . . . . . . . 65
5.3 Spectral Analysis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
5.3.1 Individual Spectral Fitting . . . . . . . . . . . . . . . . . . . . . . . . 67
5.3.2 Results on Bright Bursts . . . . . . . . . . . . . . . . . . . . . . . . . 70
06:45:13 burst . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
06:48:04 burst . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
6 Discussion 75
6.1 Summary of Observational Results . . . . . . . . . . . . . . . . . . . . . . . 75
6.2 Burst Statistics, Intensity Distribution . . . . . . . . . . . . . . . . . . . . . 76
6.3 Burst Energetics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
6.3.1 Estimation of Entire Radiated Energy in Sub-MeV Range . . . . . . 77
6.3.2 Comparison of the BB Parameters with Other Observations . . . . . 78
6.3.3 Estimation of Surface Magnetic Field Strength to Enclose the BB Plasma 78
6.3.4 Fluence for the Light Echoes . . . . . . . . . . . . . . . . . . . . . . . 80
6.4 Origin of the Hard X-ray Component . . . . . . . . . . . . . . . . . . . . . . 81
6.5 Possible Interpretation of the Radiation Origin . . . . . . . . . . . . . . . . . 84
7 Conclusion 87
A Detail of Pile-up Simulator Performance 95
A.1 Demonstration of Pile-up Simulator . . . . . . . . . . . . . . . . . . . . . . . 95
A.2 Verification with Bright Solar Flares . . . . . . . . . . . . . . . . . . . . . . 97
B All Detected Events 99
C Spactral Parameters 113, 指導教員 : 寺田幸巧, text, application/pdf},
 school = {埼玉大学},
 title = {Sub-MeV Gamma-ray Study of Anomalous X-ray Pulsar 1E 1547.0-5408 with Suzaku},
 year = {2015},
 yomi = {ヤスダ, テツヤ}
}