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

• DOI: 10.1093/mnras/stac1082
• Publication Date: 2022-04-25T11:16:25Z
• Authors: K Liu; J Antoniadis; C G Bassa; S Chen; I Cognard; M Gaikwad; H Hu; J Jang; G H Janssen; R Karuppusamy; M Kramer; K J Lee; R A Main; G Mall; J W McKee; M B Mickaliger; D Perrodin; S A Sanidas; B W Stappers; L Wang; W W Zhu; M Burgay; R Concu; A Corongiu; A Melis; M Pilia; A Possenti
• Keywords: Millisecond; Pulsar planet

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 Large European Array for Pulsars at a radio frequency 1.4 GHz. The occurrence rate is consistent among pulses different peak flux densities. Using an auto-correlation analysis, we measure periodicity width these pulsars. detected from J1022+1001 J1744−1134 often highly linearly polarized. In PSR linear polarization position angles are general flat small degree variation. results, further examine rotational period dependency properties established previous work, along angular beaming temporal modulation models that explain appearance micro-structure. also discuss possible link to some recently discovered fast bursts which exhibit very similar emission morphology.