主要内容:
不是说长的偏软短的偏硬不存在了，而是变化趋势是连续的。
精彩摘抄:
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| 时间越长，辐射的能量越多 |
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| 时间越长，谱越软 |
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| 时间越长，峰值流量越小，反相关 |
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| 时间越长，lag时间越长（我记得好像是反过来的呀，短暴的时延不是更明显的嘛） |
文章信息:
- · arXiv e-print (arXiv:1103.5434)
- · References in the Article
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| Title: |
| The Progenitor-Independent Nature of Gamma-Ray Burst Pulses |
| Authors: |
| Hakkila, Jon; Preece, Robert D. |
| Publication: |
| eprint arXiv:1103.5434 |
| Publication Date: |
| 03/2011 |
| Origin: |
| ARXIV |
| Keywords: |
| Astrophysics - High Energy Astrophysical Phenomena |
| Comment: |
| 27 pages including 9 figures and 3 tables, submitted to The Astrophysical Journal |
| Bibliographic Code: |
| 2011arXiv1103.5434H |
Abstract
We demonstrate that a single, continuous set of correlated properties (duration, peak luminosity, time-integrated luminosity, spectral hardness, lag, and asymmetry) is present in all distinguishable gamma-ray burst pulses, regardless of whether these pulses originate in Long, Short, or Intermediate bursts. These properties correlate even in the observer's frame, indicating that intrinsic correlations are more pronounced than secondary effects resulting from relativistic cosmology such as the inverse square law and time dilation. We show how all correlated pulse characteristics are the direct result of hard-to-soft pulse evolution, and we demonstrate that "intensity tracking" pulses not having these properties are not single pulses; they instead appear to be composed of two or more overlapping hard-to-soft pulses. In order to better understand pulse characteristics, we recognize that hard-to-soft evolution provides a more accurate definition of a pulse than its intensity variation. This realization, coupled with the observation that pulses begin near-simultaneously across a wide range of energies, leads us to conclude that the observed pulse emission represents the energy decay resulting from an initial injection, and that one simple and as yet unspecified physical mechanism is likely to be responsible for all gamma-ray burst pulses regardless of the environment in which they form and the progenitors that supply them with energy.
