2026ApJ...998...38G

Query : 2026ApJ...998...38G

2026ApJ...998...38G - Astrophys. J., 998, 38 (2026/February-2)

No Evidence for Second-scale Periodicity in FRB 20201124A from 2021 April to June FAST Observations.

GAZITH D. and ZACKAY B.

Abstract (from CDS):

Fast radio bursts (FRBs) are bright and short radio flashes of cosmological origin. Although a great number of FRBs have been detected in the last two decades, their progenitors and the physical processes that create them are unknown. In recent years, magnetars have been proposed as one of the leading progenitor candidates. A striking feature that can hint at such a magnetar origin is second-scale periodicity. In this paper, we define a robust procedure to search for such periodicity and estimate the significance of its results. We search for such periodicity in the bursts of FRB 20201124A, observed by the Five-hundred-meter Aperture Spherical Telescope between 2021 April and June. Our analysis does not find any significant periodicity. We discuss the differences between our nondetection and the ∼1.7 s periodicity claim by C. Du et al.

Abstract Copyright: © 2026. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): Radio transient sources - Astrostatistics - Magnetars

Simbad objects: 1

goto Full paper

goto View the references in ADS

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 FRB 20201124A rB 05 07 57.600 +26 11 24.00           ~ 307 0

Query : 2026ApJ...998...38G

Basic data :
FRB 20201124A -- Radio Burst
Other object types: otypes_help 		rB (2021ApJ,FRB)
ICRS coord. (ep=J2000) : 		05 07 57.600 +26 11 24.00 (Radio) [ ] E TNS
FK4 coord. (ep=B1950 eq=1950) : 		05 04 51.940 +26 07 31.80 [ ]
Gal coord. (ep=J2000) : 		177.648706 -08.465093 [ ]
Radial velocity / Redshift / cz : 		V(km/s) 27919 [30] / z(~) 0.0979 [0.0001] / cz 29350 [30]
   D 2022ApJ...927...59L
SIMBAD within arcmin
Overlay Simbad points in this preview
Back
All CDSPortal (CDSPortal)
Send to sendBySAMP sendBySAMP
sedIcon
within arcsec sed-help-icon

Hierarchy : number of linked objects
whatever the membership probability is (see description here ) :

: 1 Display criteria :

Identifiers (1) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

FRB 20201124A

References (307 between 1850 and 2026) (Total 307)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).
Follow new references on this object
                Reference summaries :

                from: to:

                 or select by : (not exhaustive, explanation here)

External archives :

Search by coordinates in Vizier (radius: 5 arcsec)

Annotations :
Annotations allow a user to add a note or report an error concerning the astronomical object and its data. It requires registration to post a note. See description .
Please, have a look at Best practices. The list of all annotations to SIMBAD objects can be found here .

The annotation server is currently not available. Sorry for any inconvenience

To bookmark this query, right click on this link: simbad:objects in 2026ApJ...998...38G and select 'bookmark this link' or equivalent in the popup menu