2023ApJ...949L...3R

Query : 2023ApJ...949L...3R

2023ApJ...949L...3R - Astrophys. J., 949, L3 (2023/May-3)

Deep Synoptic Array Science: Discovery of the Host Galaxy of FRB 20220912A.

RAVI V., CATHA M., CHEN G., CONNOR L., FABER J.T., LAMB J.W., HALLINAN G., HARNACH C., HELLBOURG G., HOBBS R., HODGE D., HODGES M., LAW C., RASMUSSEN P., SHARMA K., SHERMAN M.B., SHI J., SIMARD D., SQUILLACE R., WEINREB S., WOODY D.P., YADLAPALLI N. (The Deep Synoptic Array Team), AHUMADA T., DONG D., FREMLING C., HUANG Y., KARAMBELKAR V. and MILLER J.M.

Abstract (from CDS):

We report the detection and interferometric localization of the repeating fast radio burst (FRB) source FRB 20220912A during commissioning observations with the Deep Synoptic Array (DSA-110). Two bursts were detected from FRB 20220912A, one each on 2022 October 18 and 2022 October 25. The best-fit position is (R.A. J2000, decl. J2000) = (23:09:04.9, +48:42:25.4), with a 90% confidence error ellipse with radii ±2″ and ±1″ in R.A. and decl., respectively. The two bursts are polarized, and we find a Faraday rotation measure that is consistent with the low value of +0.6 rad m–2 reported by CHIME/FRB. The DSA-110 localization overlaps with the galaxy PSO J347.2702+48.7066 at a redshift z = 0.0771, which we identify as the likely host. PSO J347.2702+48.7066 has a stellar mass of approximately 1010M⊙, modest internal dust extinction, and a star formation rate likely in excess of 0.1 M⊙ yr–1. The host-galaxy contribution to the dispersion measure is likely ≲50 pc cm–3. The FRB 20220912A source is therefore likely viewed along a tenuous plasma column through the host galaxy.

Abstract Copyright: © 2023. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): Compact objects - Radio interferometry - Radio telescopes - Radio transient sources

Simbad objects: 13

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Number of rows : 13
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 3C 48 QSO 01 37 41.2996631208 +33 09 35.080388820   16.62 16.20     ~ 2924 2
2 FRB 20201124A rB 05 07 57.600 +26 11 24.00           ~ 307 0
3 FRB 20181119D rB 05 31 58.6980 +33 08 52.588           ~ 933 0
4 M 81 Sy2 09 55 33.1726556496 +69 03 55.062505368   7.89 6.94     ~ 4725 3
5 FRB 20200120E rB 09 57 56.7 +68 49 32           ~ 219 0
6 3C 286 Sy1 13 31 08.2883506368 +30 30 32.960091564   17.51 17.25     ~ 4558 2
7 3C 309.1 Bla 14 59 07.58390804 +71 40 19.8668093   17.24 16.78 17.2   ~ 509 1
8 PSR B1933+16 Psr 19 35 47.7011639352 +16 16 40.034899524           ~ 328 1
9 BD+28 4211 HS* 21 51 11.0221915656 +28 51 50.367627468 8.922 10.25 10.58 10.656 10.831 sdO2VIIIHe5 837 0
10 NVSS J225825+493744 Rad 22 58 25.27 +49 37 44.6           ~ 6 1
11 PSO J347.2702+48.7066 G 23 09 04.8 +48 42 24           ~ 10 0
12 FRB 20220912A rB 23 09 04.9 +48 42 25           ~ 126 0
13 NVSS J232545+480624 Rad 23 25 44.91224915 +48 06 25.2878680           ~ 15 1

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