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http://hdl.handle.net/20.500.12386/34319
Titolo: | Detection of quasi-periodic micro-structure in three millisecond pulsars with the Large European Array for Pulsars | Autori: | Liu, K. Antoniadis, J. Bassa, C. G. Chen, S. Cognard, I. Gaikwad, M. Hu, H. Jang, J. Janssen, G. H. Karuppusamy, R. Kramer, M. Lee, K. J. Main, R. A. Mall, G. McKee, J. W. Mickaliger, M. B. PERRODIN, DELPHINE Sanidas, S. A. Stappers, B. W. Wang, L. Zhu, W. W. BURGAY, MARTA CONCU, Raimondo CORONGIU, ALESSANDRO MELIS, Andrea PILIA, Maura POSSENTI, ANDREA |
Data pubblicazione: | 2022 | Rivista: | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | Numero: | 513 | Fascicolo: | 3 | Da pagina:: | 4037 | 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. | URI: | http://hdl.handle.net/20.500.12386/34319 | URL: | http://arxiv.org/abs/2206.10045v1 https://academic.oup.com/mnras/article/513/3/4037/6575043 |
ISSN: | 0035-8711 | DOI: | 10.1093/mnras/stac1082 | Fulltext: | open |
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