2021ApJ...923L..30Z

Query : 2021ApJ...923L..30Z

2021ApJ...923L..30Z - Astrophys. J., 923, L30-L30 (2021/December-3)

Periodicity search on X-ray bursts of SGR J1935+2154 using 8.5 yr of Fermi/GBM data.

ZOU J.-H., ZHANG B.-B., ZHANG G.-Q., YANG Y.-H., SHAO L. and WANG F.-Y.

Abstract (from CDS):

We performed a systematic search for X-ray bursts of the SGR J1935+2154 using the Fermi Gamma-ray Burst Monitor continuous data dated from 2013 January to 2021 October. Eight bursting phases, which consist of a total of 353 individual bursts, are identified. We further analyze the periodic properties of our sample using the Lomb-Scargle periodogram. The result suggests that those bursts exhibit a period of ∼238 days with a ∼63.2% duty cycle. Based on our analysis, we further predict two upcoming active windows of the X-ray bursts. Since 2021 July, the beginning date of our first prediction has been confirmed by the ongoing X-ray activities of the SGR J1935+2154.

Abstract Copyright: © 2021. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): Radio transient sources - Soft gamma-ray repeaters

Simbad objects: 18

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Number of rows : 18
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 GRB 070201 gB 00 44.3 +42 18           ~ 59 0
2 GRB 200415A gB 00 47 30.0 -25 11 37           ~ 70 0
3 FRB 20180916B rB 01 58 00.750 +65 43 00.30           ~ 457 0
4 PSR B0525-66 Psr 05 26 00.7 -66 04 35           ~ 569 1
5 FRB 20181119D rB 05 31 58.6980 +33 08 52.588           ~ 933 0
6 M 1 SNR 05 34 31.8 +22 01 03           ~ 6516 1
7 V* GP Vel HXB 09 02 06.8608812864 -40 33 16.899168060 6.85 7.37 6.87 6.31 6.05 B0.5Ia 1588 0
8 GRB 051103 gB 09 52 34.1 +68 50 42           ~ 62 0
9 V* V818 Sco LXB 16 19 55.0692669024 -15 38 25.017666540 11.60 12.40 11.1     Oev 1730 0
10 GRB 980618A gB 16 35 52 -47 35.2           ~ 270 0
11 PSR J1808-2024 Psr 18 08 39.32 -20 24 40.1           ~ 1316 2
12 GBS 1900+14 gB 19 07 13 +09 19.6           ~ 906 0
13 NAME Sgr 1935+2154 * 19 34 55.68 +21 53 48.2           ~ 820 1
14 FRB 200428 rB 19 35.0 +21 57           ~ 291 0
15 HD 226868 HXB 19 58 21.6757355952 +35 12 05.784512688 9.38 9.72 8.91 8.42   O9.7Iabpvar 4590 0
16 GRB 050925 gB 20 13 47.570 +34 19 51.40           ~ 72 0
17 GRB 190619B gB ~ ~           ~ 5 0
18 GRB 201218A gB ~ ~           ~ 6 0

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