The Mode Switching in Pulsar J1326\(-\)6700

We report on a detailed study of the mode switching in pulsar J1326\(-\)6700 by analyzing the data acquired from the Parkes 64 m radio telescope at 1369 MHz. During the abnormal mode, the emission at the central and trailing components becomes extremely weak. Meanwhile, the leading emission shifts t...

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Bibliographic Details
Published in:arXiv.org 2020-11
Main Authors: Wen, Z G, Yan, W M, Yuan, J P, Wang, H G, Chen, J L, Mijit, M, Yuen, R, Wang, N, Tu, Z Y, Dang, S J
Format: Article
Language:English
Subjects:
Data acquisition
Emission
Flux density
Pulsars
Radio telescopes
Switching
Weibull distribution
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Summary:We report on a detailed study of the mode switching in pulsar J1326\(-\)6700 by analyzing the data acquired from the Parkes 64 m radio telescope at 1369 MHz. During the abnormal mode, the emission at the central and trailing components becomes extremely weak. Meanwhile, the leading emission shifts toward earlier longitude by almost 2{\deg}, and remains in this position for typically less than a minute. The mean flux density of the normal mode is almost five times that of the abnormal mode. Our data show that, for PSR J1326\(-\)6700, 85% of the time was spent in the normal mode and 15% was in the abnormal mode. The intrinsic distributions of mode timescales can be well described by Weibull distributions, which present a certain amount of memory in mode switching. Furthermore, a quasiperiodicity has been identified in the mode switching in pulsar J1326\(-\)6700. The estimated delay emission heights based on the kinematical effects indicate that the abnormal mode may have originated from higher altitude than the normal mode.
ISSN:2331-8422
DOI:10.48550/arxiv.2011.05526