Detection of quasi-periodic micro-structure in three millisecond pulsars with the Large European Array for Pulsars - Archive ouverte HAL Access content directly
Journal Articles Monthly Notices of the Royal Astronomical Society Year : 2022

Detection of quasi-periodic micro-structure in three millisecond pulsars with the Large European Array for Pulsars

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K. Liu
  • Function : Author
J. Antoniadis
  • Function : Author
C. G. Bassa
  • Function : Author
M. Gaikwad
  • Function : Author
H. Hu
  • Function : Author
J. Jang
  • Function : Author
G. H. Janssen
  • Function : Author
R. Karuppusamy
  • Function : Author
M. Kramer
  • Function : Author
K. J. Lee
  • Function : Author
R. A. Main
  • Function : Author
G. Mall
  • Function : Author
J. W. Mckee
  • Function : Author
M. B. Mickaliger
  • Function : Author
D. Perrodin
  • Function : Author
S. A. Sanidas
  • Function : Author
B. W. Stappers
  • Function : Author
L. Wang
  • Function : Author
W. W. Zhu
  • Function : Author
M. Burgay
  • Function : Author
R. Concu
  • Function : Author
A. Corongiu
  • Function : Author
A. Melis
M. Pilia
  • Function : Author
A. Possenti
  • Function : Author

Abstract

We report on the detection of quasi-periodic micro-structure in three millisecond pulsars (MSPs), PSRs J1022+1001, J2145-0750 and J1744-1134, using high time resolution data acquired with the Large European Array for Pulsars at a radio frequency of 1.4 GHz. The occurrence rate of quasi-periodic micro-structure is consistent among pulses with different peak flux densities. Using an auto-correlation analysis, we measure the periodicity and width of the micro-structure in these three pulsars. The detected micro-structure from PSRs J1022+1001 and J1744-1134 is often highly linearly polarised. In PSR J1022+1001, the linear polarisation position angles of micro-structure pulses are in general flat with a small degree of variation. Using these results, we further examine the frequency and rotational period dependency of micro-structure properties established in previous work, along with the angular beaming and temporal modulation models that explains the appearance of micro-structure. We also discuss a possible link of micro-structure to the properties of some of the recently discovered fast radio bursts which exhibit a very similar emission morphology.
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Dates and versions

insu-03672004 , version 1 (19-05-2022)

Identifiers

Cite

K. Liu, J. Antoniadis, C. G. Bassa, S. Chen, Ismaël Cognard, et al.. Detection of quasi-periodic micro-structure in three millisecond pulsars with the Large European Array for Pulsars. Monthly Notices of the Royal Astronomical Society, 2022, ⟨10.1093/mnras/stac1082⟩. ⟨insu-03672004⟩
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