Abstract
We perform time-resolved spectral analysis on 26 multi-pulse BATSE GRBs. By fixing two parameters of a 3-parameter fit to the time-integrated values, we achieve a robust spectral hardness measure and physical fluxes. 28 pulse decay phases in 15 GRBs show significant correlation between peak power energy and instantaneous energy flux (characterized byF E∝E 1.7 p ). We compare peak energy fluxes, peak hardnesses, and pulse durations and separation for pulse pairs in our sample. There may be some indication of a “recovery timescale” for the bursters' energy source or environment.
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References
Band, D. L.,et al.: 1993,Astrophys. J. 413, 281
Bhat, P. N.,et al.: 1994,Astrophys. J. 426, 604
Ford, L. A.,et al.: 1995,Astrophys. J. 439, 307
Golenetskii, S. V.,et al.: 1983,Nature 306, 451
Kargatis, V. E,.et al.: 1994,Astrophys. J. 422, 260
Lochner, J.: 1992, inGamma Ray Bursts, ed. W. Paciesas & G. Fishman (AIP:NY), 289
Norris, J. P.,et al.: 1986,Astrophys. J. 301, 213
Paciesas, W. S.,et al.: 1992, inGamma Ray Bursts, ed. W. Paciesas & G. Fishman (AIP:NY), 190
Press, W. H.,et al.: 1992,Numerical Recipes (Cambridge University Press: Cambridge), 660
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Kargatis, V.E., Liang, E.P. & The BATSE Team NASA/MSFC; UAH; NASA/GSFC; CASS, UCSD. Spectral evolution of GRB pulses. Astrophys Space Sci 231, 177–180 (1995). https://doi.org/10.1007/BF00658611
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DOI: https://doi.org/10.1007/BF00658611