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| Title: |
| Relationship between pulse width and energy in GRB 060124: from X-ray to γ-ray bands |
| Authors: |
| Zhang, Fu-Wen; Qin, Yi-Ping |
| Affiliation: |
| AA(National Astronomical Observatories/Yunnan Observatory, Chinese Academy of Sciences, P.O. Box 110, Kunming, Yunnan 650011, China; The Graduate School of the Chinese Academy of Sciences, P.O. Box 3908, Beijing 100039, China), AB(Center for Astrophysics, Guangzhou University, Guangzhou 510006, China; Physics Department, Guangxi University, Nanning, Guangxi 530004, China) |
| Publication: |
| New Astronomy, Volume 13, Issue 7, p. 485-490. (NewA Homepage) |
| Publication Date: |
| 10/2008 |
| Origin: |
| ELSEVIER |
| Keywords: |
| 95.85.Pw, 95.85.Nv |
| Abstract Copyright: |
| Elsevier B.V. |
| DOI: |
| 10.1016/j.newast.2008.01.005 |
| Bibliographic Code: |
| 2008NewA...13..485Z |
Abstract
GRB 060124 is the first event that both prompt and afterglow emission were observed simultaneously by the three Swift instruments. Its main peak also triggered Konus-Wind and HETE-II. Therefore, investigation on both the temporal and spectral properties of the prompt emission can be extended to X-ray bands. We perform a detailed analysis on the two well identified pulses of this burst, and find that the pulses are narrower at higher energies, and both X-rays and γ-rays follow the same w–E relation for an individual pulse. However, there is no a universal power-law index of the w–E relation among pulses. We find also that the rise-to-decay ratio r/d seems not to evolve with E and the r/d values are well consistent with that observed in typical GRBs. The broadband spectral energy distribution also suggests that the X-rays are consistent with the spectral behavior of the γ-rays. These results indicate that the X-ray emission tracks the γ-ray emission and the emissions in the two energy bands are likely to be originated from the same physical mechanism.
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