Spectral Characteristics of X‐Ray Flashes Compared to Gamma‐Ray Bursts
Spectral Characteristics of X‐Ray Flashes Compared to Gamma‐Ray Bursts
复制标题
X 射线闪光与伽马射线暴的光谱特性比较
DOI：
10.1063/1.1579349
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发表时间：
2002
期刊：
影响因子：
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通讯作者：
Astronomical Institute Utrecht Univ.
中科院分区：
文献类型：
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作者：
R. Kippen;P. Woods;J. Heise;J. Zand;M. Briggs;R. D. P. U. O. A. I. Huntsville;National Space Science;Technology Center;Universities Space Research Assoc.;S. I. F. S. Research;Astronomical Institute Utrecht Univ.
X射线闪光（XRF）是一种新型的快速瞬变源，由BeppoSAX宽视场相机（WFC）以每年约4次的速度观测到。除了它们的大部分是2-26 keV的X射线外，这些事件的整体性质与经典的伽马射线暴（GRB）相似。通过研究WFC和BATSE共同检测到的10个事件的宽带光谱，我们探索了XRFs是GRB群体的低能分支的可能性。我们发现，X射线荧光光谱是类似的伽玛暴，它们的低峰值能量可能是已知的伽玛暴属性的扩展。
X‐ray flashes (XRFs) are a new type of fast transient source observed with the BeppoSAX Wide Field Cameras (WFC) at a rate of about four per year. Apart from their large fraction of 2–26 keV X‐rays, the bulk properties of these events are similar to those of classical gamma‐ray bursts (GRBs). By investigating the wide‐band spectra of ten events detected in common with WFC and BATSE, we explore the possibility that XRFs are a low‐energy branch of the GRB population. We find that XRF spectra are similar to those of GRBs, and that their low peak energies could be an extension of known GRB properties.