2024MNRAS.527.3659D

Query : 2024MNRAS.527.3659D

2024MNRAS.527.3659D - Mon. Not. R. Astron. Soc., 527, 3659-3673 (2024/January-2)

FRB 20210405I: a nearby Fast Radio Burst localized to sub-arcsecond precision with MeerKAT.

DRIESSEN L.N., BARR E.D., BUCKLEY D.A.H., CALEB M., CHEN H., CHEN W., GROMADZKI M., JANKOWSKI F., KRAAN-KORTEWEG R.C., PALMERIO J., RAJWADE K.M., TREMOU E., KRAMER M., STAPPERS B.W., VERGANI S.D., WOUDT P.A., BEZUIDENHOUT M.C., MALENTA M., MORELLO V., SANIDAS S., SURNIS M.P. and FENDER R.P.

Abstract (from CDS):

We present the first sub-arcsecond localized Fast Radio Burst (FRB) detected using MeerKAT. FRB 20210405I was detected in the incoherent beam using the MeerTRAP pipeline on 2021 April 05 with a signal to noise ratio of 140.8 and a dispersion measure of 565.17 pc cm–3. It was detected while MeerTRAP was observing commensally with the ThunderKAT large survey project, and was sufficiently bright that we could use the ThunderKAT 8 s images to localize the FRB. Two different models of the dispersion measure in the Milky Way and halo suggest that the source is either right at the edge of the Galaxy, or outside. This highlights the uncertainty in the Milky Way dispersion measure models, particularly in the Galactic Plane, and the uncertainty of Milky Way halo models. Further investigation and modelling of these uncertainties will be facilitated by future detections and localizations of nearby FRBs. We use the combined localization, dispersion measure, scattering, specific luminosity, and chance coincidence probability information to find that the origin is most likely extra-galactic and identify the likely host galaxy of the FRB: 2MASS J1701249-4932475. Using SALT spectroscopy and archival observations of the field, we find that the host is a disc/spiral galaxy at a redshift of z = 0.066.

Abstract Copyright: © The Author(s) 2023. Published by Oxford University Press on behalf of Royal Astronomical Society.

Journal keyword(s): fast radio bursts - radio continuum: galaxies - radio continuum: transients

CDS comments: 2MASS J1701249-4932475 is a misprint for 2MASS J17012149-4932475.

Simbad objects: 19

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Number of rows : 19
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 20220319D rB 02 08 42.700 +71 02 06.94           ~ 39 0
2 FRB 20181119D rB 05 31 58.6980 +33 08 52.588           ~ 933 0
3 M 81 Sy2 09 55 33.1726556496 +69 03 55.062505368   7.89 6.94     ~ 4725 3
4 FRB 20200120E rB 09 57 56.7 +68 49 32           ~ 219 0
5 PMN J1654-4812 Rad 16 54 18.23 -48 13 03.7           ~ 4 1
6 PMN J1656-4923 Rad 16 56 13.18 -49 23 18.0           ~ 5 1
7 PMN J1656-4729 Rad 16 56 14.95 -47 29 15.2           ~ 4 1
8 PMN J1659-4815 Rad 16 59 08.35 -48 15 48.7           ~ 5 1
9 MKT J170121.4-493250 Rad 17 01 21.42 -49 32 50.2           ~ 1 0
10 Gaia DR3 5938235492995353728 * 17 01 21.4897117176 -49 32 42.508325945           ~ 1 0
11 2MASS J17012149-4932475 G 17 01 21.49560 -49 32 47.5980           ~ 3 0
12 FRB 20210405I rB 17 01 21.50 -49 32 42.8           ~ 17 0
13 V* V821 Ara LXB 17 02 49.3876391280 -48 47 23.087954544         15.322 ~ 2237 0
14 PSR J1703-4902 Psr 17 03 54.54100 -48 52 01.0400           ~ 42 0
15 PMN J1711-4913 Rad 17 11 54.98 -49 12 50.6           ~ 4 1
16 PMN J1726-5529 rG 17 26 49.62696049 -55 29 40.4640051           ~ 12 0
17 AX J1809.8-1943 Psr 18 09 51.07 -19 43 51.8           ~ 532 0
18 FRB 190611 rB 21 22 58.91 -79 23 51.3           ~ 82 0
19 FRB 191001 rB 21 33 24.373 -54 44 51.40           ~ 64 0

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