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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 한국우주과학회 Journal of Astronomy and Space Sciences Journal of Astronomy and Space Sciences 제33권 제4호
- 발행연도
- 2016.12
- 수록면
- 247 - 256 (10page)
- DOI
- http://dx.doi.org/10.5140/JASS.2016.33.4.247
이용수
초록· 키워드
오류제보하기
An analysis of light curves and spectra of observed gamma-ray bursts in gamma-ray ranges is frequently demanded because the prompt emission contains immediate details regarding the central engine of gamma-ray bursts (GRBs). We have revisited the relationship between the collimation-corrected peak luminosity and the spectral lag, investigating the lag-luminosity relationships in great detail by focusing on spectral lags resulting from all possible combinations of channels. Firstly, we compiled the opening angle data and demonstrated that the distribution of opening angles of 205 long GRBs is represented by a double Gaussian function having maxima at ~ 0.1 and ~ 0.3 radians. We confirmed that the peak luminosity and the spectral lag are anti-correlated, both in the observer frame and in the source frame. We found that, in agreement with our previous conclusion, the correlation coefficient improves significantly in the source frame. It should be noted that spectral lags involving channel 2 (25-50 keV) yield high correlation coefficients, where Swift/Burst Alert Telescope (BAT) has four energy channels (channel 1: 15-25 keV, channel 2: 25-50 keV, channel 3: 50-100 keV, channel 4: 100-200 keV). We also found that peak luminosity is positively correlated with peak energy.
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등록된 정보가 없습니다.
참고문헌 (81)
참고문헌 신청
L. Amati / 2006 / The Ep,i-Eiso correlation in gamma-ray bursts: updated observational status, re-analysis and main implications / Monthly Notices of the Royal Astronomical Society 372(1):233~245
L. Amati / 2002 / Intrinsic spectra and energetics of BeppoSAX Gamma–Ray Bursts with known redshifts / Astronomy and Astrophysics 390(1):81~89
D. Band / 1993 / BATSE observations of gamma-ray burst spectra. I - Spectral diversity / The Astrophysical Journal 413:281
C. Barraud / 2003 / Spectral analysis of 35 GRBs/XRFs observed with HETE-2/FREGATE / Astronomy and Astrophysics 400(3):1021~1030
Andrei M. Beloborodov / 1998 / Self-Similar Temporal Behavior of Gamma-Ray Bursts / The Astrophysical Journal 508(1):L25~L27
L. Amati / 2002 / Intrinsic spectra and energetics of BeppoSAX Gamma–Ray Bursts with known redshifts / Astronomy and Astrophysics 390(1):81~89
D. Band / 1993 / BATSE observations of gamma-ray burst spectra. I - Spectral diversity / The Astrophysical Journal 413:281
C. Barraud / 2003 / Spectral analysis of 35 GRBs/XRFs observed with HETE-2/FREGATE / Astronomy and Astrophysics 400(3):1021~1030
Andrei M. Beloborodov / 1998 / Self-Similar Temporal Behavior of Gamma-Ray Bursts / The Astrophysical Journal 508(1):L25~L27
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