论文标题

Parkes瞬态事件:I。单脉冲的数据库,初始结果和缺失的FRB

Parkes transient events: I. Database of single pulses, initial results and missing FRBs

论文作者

Zhang, S. -B., Hobbs, G., Russell, C. J., Toomey, L., Dai, S., Dempsey, J., Manchester, R. N., Johnston, S., Staveley-Smith, L., Wu, X. -F., Li, D., Yang, Y. -Y., Wang, S. -Q., Qiu, H., Luo, R., Wang, C., Zhang, C., Zhang, L., Mandow, R.

论文摘要

以高时间分辨率记录的Parkes 64 \ parkes 64 \的大量观察是公开的。我们已经重新处理了Parkes Multibeam接收器系统(从1997年至2001年)获得的所有观察结果,以识别瞬态事件,并构建了一个数据库,该数据库记录了这次搜索过程中产生的568,736,756次脉搏候选者。我们发现了一个新的快速无线电爆发(FRB),frb〜010305,分散度为350 $ \ pm $ \ pm 5 \,\,\,\,cm $^{ - 3} \,$ pc,并探讨了为什么在2001年之前的数据中发现了如此少量的frb。我们还提出了来自未知来源的五个单脉冲候选物,但带有银河色散度量。我们从数据库中提取各种来源,例如,可以将其用作新软件的训练集,用于开发新软件,以在射频干扰存在的情况下搜索FRB。

A large number of observations from the Parkes 64\,m-diameter radio telescope, recorded with high time resolution, are publicly available. We have re-processed all of the observations obtained during the first four years (from 1997 to 2001) of the Parkes Multibeam receiver system in order to identify transient events and have built a database that records the 568,736,756 pulse candidates generated during this search. We have discovered a new fast radio burst (FRB), FRB~010305, with a dispersion measure of 350$\pm$5\,\,cm$^{-3}\,$pc and explored why so few FRBs have been discovered in data prior to 2001. After accounting for the dispersion smearing across the channel bandwidth and the sky regions surveyed, the number of FRBs is found to be consistent with model predictions. We also present five single pulse candidates from unknown sources, but with Galactic dispersion measures. We extract a diverse range of sources from the database, which can be used, for example, as a training set of data for new software being developed to search for FRBs in the presence of radio frequency interference.

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