FRB 20180924B

Image from Bannister et al., 2019, Science, 365, 565

Summary
- Detected by: ASKAP-ICS
- FRB coordinates (RA, Dec): 21:44:25.26 -40:54:00.1 (J2000)
- Host coordinates (RA, Dec): 21:44:25.25 −40:54:00.8 (J2000)
- Redshift: 0.3212
- Observed DM: 361.42 pc cm^-3
- Repeating: No
- References: Bannister et al., 2019, Science, 365, 565; Bhandari et al., 2020, ApJ, 895, 37; Day et al., 2020, MNRAS, 497, 3335; Heintz et al., 2020, ApJ, 903, 152; Mannings et al., 2020 (ArXiv: 2012.11617)

Host galaxy properties

Quantity	Measured value	Unit
Stellar mass	(1.32 ± 0.51) × 1010	M⊙
Star-formation rate	0.88 ± 0.26	M⊙/yr
Metallicity	8.93 ± 0.02	12+log(O/H)
E(B-V)	0.31 ± 0.11	mag
Mass-weighted age	383.4	Myr
Absolute r-band mag.	-20.81 ± 0.05	mag
u - r color (rest-frame)	1.78 ± 0.15	mag
Half-light radius	2.75 ± 0.10	kpc
FRB offset from galaxy center	3.37 ± 0.84	kpc
ΣSFR (FRB)	< 0.025	M⊙/yr/kpc2
ΣM⊙ (FRB)	0.821 ± 0.010	M⊙/kpc2

Gas-phase metallicities are derived using the O3N2 calibration from Hirschauer et al., 2018, AJ, 155, 82.

Emission line fluxes

Emission line	Measured value
Hα	2.79 ± 0.03
Hβ	0.72 ± 0.02
[OII] λ 3726	0.40 ± 0.02
[OII] λ 3729	0.69 ± 0.03
[OIII] λ 5007	0.79 ± 0.02
[NII] λ 6584	1.94 ± 0.03

Measurements are reported in units of 10^-16 erg s^-1 cm^-2 and are corrected for Galactic dust using the E(B−V) values derived from Schlafly & Finkbeiner, 2011, ApJ, 737, 103.

Photometry

Telescope	Filter (eff. wavelength)	Magnitude
DES	g (527 nm)	21.56 ± 0.03
DES	r (659 nm)	20.50 ± 0.02
DES	i (789 nm)	20.11 ± 0.02
DES	z (976 nm)	19.83 ± 0.02
DES	Y (1003 nm)	19.79 ± 0.06
VLT/FORS2	g (470 nm)	21.31 ± 0.04
VLT/FORS2	I (768 nm)	20.07 ± 0.02
WISE	W1 (3.4 μm)	16.84 ± 0.10
WISE	W2 (4.6 μm)	16.06 ± 0.19
WISE	W3 (12.1 μm)	> 11.69
WISE	W4 (22.2 μm)	> 8.50

Measurements are corrected for Galactic dust using the E(B−V) values derived from Schlafly & Finkbeiner, 2011, ApJ, 737, 103.