2025ApJ...988...41Z

Query : 2025ApJ...988...41Z

2025ApJ...988...41Z - Astrophys. J., 988, 41 (2025/July-3)

Bright Bursts with Submillisecond Structures of FRB 20230607A in a Highly Magnetized Environment.

ZHOU D., HAN J.L., ZHANG B., ZHU W., WANG W.-Y., YANG Y.-P., QU Y., ZHANG Y.-K., YAN Y., JING W.-C., CAO S., XIE J., YANG X., TIAN S., LI Y., LI D., NIU J.-R., WU Z.-W., WU Q., FENG Y., WANG F. and WANG P.

Abstract (from CDS):

We report the observations of a repeating FRB 20230607A for 15.6 hr spanning 16 months using the Five-hundred-meter Aperture Spherical Radio Telescope with the detection of 565 bursts. We present three bright bursts with detailed temporal/spectral structures. We also report that one burst carries a narrow component with a width of only 0.3 ms, which is surrounded by broader components. This suggests that repeaters can make both narrow and broad components in one burst. With the narrow spike, we precisely measure the dispersion measure of 362.85 ± 0.15 pc cm–3 and the Faraday rotation measures (RMs) of -12249.0 ± 1.5 rad m–2. We also analyze the statistical distribution of the burst parameters, including waiting times, temporal widths, central frequencies and frequency widths, fluences and energies, all showing typical distributions of known active repeaters. In particular, most bursts show narrow spectra with Δν/ν0 = 0.125 ± 0.001. This fact, together with the narrow 0.3 ms spike, strongly suggests a magnetospheric origin of the FRB emission. Based on a predicted correlation between RM and the luminosity of a persistent radio source (PRS) by Yang et al., we predict that the PRS should have a specific luminosity of the order of 1029 erg s–1 Hz–1 and encourage a search for such a PRS.

Abstract Copyright: © 2025. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): Radio transient sources

Status at CDS : Large table(s) will be appraised for possible ingestion in VizieR.

Simbad objects: 21

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Number of rows : 21
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 191108 rB 01 33 47.0 +31 51 30           ~ 19 0
2 FRB 20180916B rB 01 58 00.750 +65 43 00.30           ~ 457 0
3 FRB 20201124A rB 05 07 57.600 +26 11 24.00           ~ 307 0
4 FRB 20181119D rB 05 31 58.6980 +33 08 52.588           ~ 933 0
5 FRB 150418 rB 07 16 30.9 -19 02 24           ~ 120 0
6 FRB 20200120E rB 09 57 56.7 +68 49 32           ~ 219 0
7 NAME FRB 181030.J1054+73 rB 10 33 24.0000 +73 47 24.000           ~ 79 0
8 FRB 20190520B rB 16 02 04.270 -11 17 17.32           ~ 211 0
9 PSR J1745-2900 Psr 17 45 40.1640 -29 00 29.818           ~ 358 0
10 FRB 150215 rB 18 17 27.0 -04 54 15           ~ 42 0
11 NAME FRB 190417.J1939+59 rB 19 39 04.0 +59 19 55           ~ 37 0
12 FRB 180309 rB 21 24 43.80 -33 58 44.5           ~ 27 0
13 FRB 20240114A rB 21 27 39.8350 +04 19 45.634           ~ 66 0
14 FRB 180924 rB 21 44 25.255 -40 54 00.10           ~ 140 0
15 FRB 110523 rB 21 45 31.0 -00 15 23           ~ 91 0
16 FRB 181112 rB 21 49 23.630 -52 58 15.39           ~ 131 0
17 FRB 20230607A rB 21 54 09.600 +11 15 00.00           ~ 2 0
18 FRB 20160102A rB 22 38 49.0 -30 10 50           ~ 41 0
19 FRB 20210117A rB 22 39 55.015 -16 09 05.45           ~ 49 0
20 FRB 150807 rB 22 41 33.75 -53 05 39.9           ~ 66 0
21 FRB 20220912A rB 23 09 04.9 +48 42 25           ~ 126 0

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