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arXiv · 2506.04532

Single-pulse-based interstellar scintillation studies of RRATs

Zi-wei Wu·Wei-wei Zhu·Zi-yao Fang·Qiu-yang Fu·Ji-guang Lu·Ling-qi Meng·Chen-Chen Miao·Xue-li Miao·Jia-rui Niu·Rukeya Rejiefu·Xun Shi·Chao Wang·Meng-yao Xue·Mao Yuan·You-ling Yue·Chun-feng Zhang·Zhen Zhang·Shi-jun Dang·Yu-lan Liu
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Abstract

The nature of irregularly spaced pulses of rotating radio transients (RRATs) complicates interstellar scintillation studies. In this letter, we report the primary scintillation parameters of a sample of RRATs using pairwise correlations of pulse spectra. Moreover, from the measured scintillation velocities, we constrain their transverse velocities. We also find a reduced modulation index, $\rm{m=0.13\pm0.01}$, for RRAT~J1538+2345. Several possible explanations are discussed. Furthermore, the single-pulse-based interstellar scintillation technique is applicable to other pulsar populations, including nulling pulsars and those with short scintillation timescales, and fast radio bursts.

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Zi-wei Wu, Wei-wei Zhu, Zi-yao Fang, Qiu-yang Fu, Ji-guang Lu, Ling-qi Meng, Chen-Chen Miao, Xue-li Miao, Jia-rui Niu, Rukeya Rejiefu, Xun Shi, Chao Wang, Meng-yao Xue, Mao Yuan, You-ling Yue, Chun-feng Zhang, Zhen Zhang, Shi-jun Dang, Yu-lan Liu. 2025-06-05. Single-pulse-based interstellar scintillation studies of RRATs. https://arxiv.org/abs/2506.04532

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