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arXiv 2108.00609astro-ph.HE
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Parkes档案中的81个新候选快速射电暴

81 New Candidate Fast Radio Bursts in Parkes Archive

X. Yang, S. -B. Zhang, J. -S. Wang, G. Hobbs, T. -R. Sun, R. N. Manchester, J. -J. Geng, C. J. Russell, R. Luo, Z. -F. Tang, C. Wang, J. -J. Wei, L. Staveley-Sm… 展开作者

X. Yang, S. -B. Zhang, J. -S. Wang, G. Hobbs, T. -R. Sun, R. N. Manchester, J. -J. Geng, C. J. Russell, R. Luo, Z. -F. Tang, C. Wang, J. -J. Wei, L. Staveley-Smith, S. Dai, Y. Li, Y. -Y. Yang, X. -F. Wu

摘要:

我们已经搜索了弱快速射电暴(FRB)事件使用的数据库包含568,736,756瞬态事件使用帕克斯射电望远镜在1997年和2001年之间检测。为了对这些脉冲进行分类,并识别可能的FRB候选者,我们使用了基于ResNet的机器学习算法。我们确定了81个新的候选FRB,并提供了它们的位置,事件时间和分散措施的详细信息。这些事件只在帕克斯多波束接收器的一个波束中被探测到。在选择这些爆发时,我们使用了一个相对较低的S/N截止阈值,其中一些爆发的色散测量值仅略高于预期的银河贡献。因此,我们提出这些候选FRB作为后续观察的指导,在寻找重复的FRB。

英文摘要:

We have searched for weak fast radio burst (FRB) events using a database containing 568,736,756 transient events detected using the Parkes radio telescope between 1997 and 2001. In order to classify these pulses, and to identify likely FRB candidates, we used a machine learning algorithm based on ResNet. We identified 81 new candidate FRBs and provide details of their positions, event times, and dispersion measures. These events were detected in only one beam of the Parkes multibeam receiver. We used a relatively low S/N cutoff threshold when selecting these bursts and some have dispersion measures only slightly exceeding the expected Galactic contribution. We therefore present these candidate FRBs as a guide for follow-up observations in the search for repeating FRBs.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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