2024ApJ...961..114C

Query : 2024ApJ...961..114C

2024ApJ...961..114C - Astrophys. J., 961, 114 (2024/January-3)

Investigation of Periodic Modulation Behaviors from Pulsar J2022+5154.

CHEN J.L., WEN Z.G., WANG Z., DUAN X.F., HE D.L., WANG N., WANG H.G., YUAN J.P., HUANG L., LYU C.B., YUEN R., YAN W.M., WU Z.W., HAN W., XIANG B.B. and DONG A.J.

Abstract (from CDS):

We have carried out a detailed study of individual pulse emission from the pulsar J2022+5154 (B2021+51), observed at 2250 MHz using the Jiamusi 66 m radio telescope. We have investigated the modulations in single-pulse behavior using fluctuation spectral analysis, which shows the presence of two prominent periodicities, around 5 and 40 rotation periods, respectively. The shorter periodicity is associated with the phenomenon of subpulse drifting. In the absence of aliasing, the emission pattern is demonstrated to consist of eight subbeams, which rotate around the magnetic axis in about 45 periods. In addition to subpulse drifting, the pulsar also shows the presence of periodic amplitude modulation with a longer periodicity in the single-pulse sequence. The pulsar joins a select group that shows the presence of periodic phase-modulated drifting as well as amplitude-modulated drifting. This provides further evidence for the two phenomena being distinct from each other with different physical origins.

Abstract Copyright: © 2024. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): Radio pulsars

Simbad objects: 1

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Number of rows : 1
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 PSR B2021+51 Psr 20 22 49.8730 +51 54 50.233           ~ 288 1

Query : 2024ApJ...961..114C

Basic data :
PSR B2021+51 -- Pulsar
Other object types: otypes_help 		Psr (PSR,PULS), Rad (NVSS,WN)
ICRS coord. (ep=J2000) : 		20 22 49.8730 +51 54 50.233 [ ] D 2004MNRAS.353.1311H
FK4 coord. (ep=B1950 eq=1950) : 		20 21 25.2622 +51 45 07.878 [ ]
Gal coord. (ep=J2000) : 		087.8618250 +08.3796414 [ ]
Parallaxes (mas): 		0.95 [0.37] D 2002ApJ...571..906B
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Identifiers (6) :
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PSR B2021+51 PSR J2022+5154 PULS JP 2021
NVSS J202249+515449 PSR B2022+51 WN J2022+5154

References (288 between 1850 and 2026) (Total 288)
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Data at NED - NASA/IPAC Extragalactic Database : PSR B2021+51

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NVSS J202249+515449 WN J2022+5154

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