A New Survey of X-ray Flares

摘要：

One of the most interesting discoveries of the Swift mission is the wide variety of X-ray behaviors observed in theearly GRB afterglows. We selected a large sample of bright X-ray flares observed by XRT up to March 2008. The Norris etal. (2005) profile was adopted to characterize the morphological and timing properties of the flares in different energy bands,such as the peak, rise and decay times, the width and the asymmetry of each flare. These parameters were used to estimateother properties in a homogeneous way, such as the temporal lag between the same pulse seen at different energy bands, or thewidth of the flare as a function of energy, thus allowing us to derive important clues on the underlying physical mechanismand the connections with the central engine.

关键词： γ-ray sources γ-ray burst

作者: J.Mao G.Chincarini C.Guidorzi R.Margutti M.G.Bemardini F.Pasotti

作者单位: INAF Osservatorio Astronomico di Brera,Via E.Bianchi 46,I-23807,Merate (LC),Itaty INAF Osservatorio Astronomico di Brera,Via E.Bianchi 46,I-23807,Merate (LC),Itaty;Universita degli S Universita di Roma La Sapienza,ICRA,ICRANet,Italy

会议类型: 国际会议

会议名称: 2008 NanJing Gamma-Ray Burst Conference(2008年伽马暴国际研讨会)

会议地点: 南京

会议语种:英文

页码: 31-34

在线出版日期: 2008-06-23（万方平台首次上网日期，不代表论文的发表时间）