论文标题

Pushchino Multibeam Pulsar搜索:I。针对弱脉冲星的目标搜索

Pushchino multibeam pulsar search: I. Targeted search of weak pulsars

论文作者

Tyul'bashev, S. A., Kitaeva, M. A., Tyul'basheva, G. E.

论文摘要

根据较低(6个通道;抽样0.1 s)在下降的偏差-9^o <Δ< +42^O中进行的多年调查发现的脉冲星候选者中搜索脉冲星。使用了2.5 MHz频段中的111 MHz的大型梯形阵列(LPA)过境望远镜。搜索,分析和PULSAR检测的证据是使用从具有32个频道的调查数据获得的总结功率谱的可视化程序进行的;抽样12.5ms)时间频分辨率。 11具有p0 = 0.41-3.75 s的新脉冲星和色散度量DM = 15-154 pc/cm^3。总的来说,在2016 - 2021年期间的低时频分辨率中,发现了208个脉冲星,其中有42个新的和166个已知的脉冲星。结果表明,在搜索具有高频率分辨率的数据的搜索中,在7年间隔内积累了较高的时间,可以检测到磁通量密度为0.1-0.2 mjy的脉冲星,频率为111 MHz。当搜索降低时定期(周期性)排放的脉冲星时,所有位于银河平面外的脉冲星,具有p0 \ ge 0.5 s,dm \ le 100 pc/cm^3和磁通密度S \ ge 0.5 mjy,可以检测

The search for pulsars in a sample of pulsar candidates found based on a multi-year survey conducted with low (6 channels; sampling 0.1s) time-frequency resolution on declinations -9^o < δ< +42^o was carried out. A Large Phased Array (LPA) transit telescope operating at 111 MHz in the 2.5 MHz band was used. Search, analysis and evidence of pulsar detection were carried out using a visualization program of summed up power spectra obtained from the survey data with high 32 channels; sampling 12.5ms) time-frequency resolution. 11 new pulsars with periods P0 = 0.41-3.75 s and dispersion measure DM=15-154 pc/cm^3 have been discovered. In total, in the survey with a low time-frequency resolution for the period 2016-2021 in a blind search, 208 pulsars were found, of them 42 new and 166 known pulsars. It is shown that in the search on the data with high time-frequency resolution accumulated over a time interval of 7 years, pulsars with a flux density of 0.1 - 0.2 mJy at the frequency of 111 MHz can be detected. When searching for pulsars with regular (periodic) emission at declinations +21^o < δ< +42^o, all pulsars located outside the galactic plane, having P0 \ge 0.5 s, DM \le 100 pc/cm^3 and the flux density S \ge 0.5 mJy, can be detected

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