FRB 20230804A
A burst from FRB20200926A
- Repeater
- FRB20200926A
- Event ID
- 307983650
- Arrival, 400 MHz
- 2023-08-04 06:00:38.147 UTC
- Right ascension
- 282.932°
- Declination
- 53.945°
How the sub-bursts differ
This burst has 4 sub-bursts. These 8 measurements differ between them and are highlighted below. Everything else is the same for every sub-burst.
| Measurement | Sub-burst 1 | Sub-burst 2 | Sub-burst 3 | Sub-burst 4 |
|---|---|---|---|---|
| Arrival time, 400 MHzMJD | 60160.2504415199 | 60160.25044159087 | 60160.250441708464 | 60160.25044182734 |
| Arrival time, infinite frequencyMJD | 60160.25021405071 | 60160.25021412168 | 60160.25021423928 | 60160.25021435815 |
| Width (fitburst)s | 0.001550 | 0.001601 | 0.002244 | 0.005203 |
| Peak frequencyMHz | 559.1 | 547.7 | 523.9 | 486.4 |
| Lowest frequencyMHz | 502.0 | 494.6 | 468.4 | 423.8 |
| Highest frequencyMHz | 622.6 | 606.4 | 586.0 | 558.2 |
| Spectral index | 132.84 | 139.03 | 98.85 | 47.31 |
| Spectral running | -198.64 | -221.59 | -183.50 | -121.27 |
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Notes
- This event should be excluded from parameter inference due to non-nominal telescope operation.
- The pulse emission region was extended during fluence estimation.
- Exposure. Event occurred during a period when real-time grouping/classification (L2/L3) was non-functional and should be excluded from population studies.
Position
ra- 282.932± 0.162degrees
dec- 53.945± 0.158degrees
gl- 83.66degrees
gb- 21.59degrees
Detection and dispersion
bonsai_snr- 36.2
snr_fitb- 113.2
bonsai_dm- 761.0pc cm⁻³
dm_fitb- 758.5730± 0.02379pc cm⁻³
dm_exc_ne2001- 695.3pc cm⁻³
dm_exc_ymw16- 699.8pc cm⁻³
Arrival time
mjd_400Differs between sub-bursts.- 60160.2504415199± 3.79 × 10⁻⁹MJD
mjd_infDiffers between sub-bursts.- 60160.25021405071± 8.08 × 10⁻⁹MJD
Burst shape
bc_width- 0.01573s
width_fitbDiffers between sub-bursts.- 0.001550± 0.0001829s
scat_time- 0.000000s
Flux and spectrum
flux- 1.34± 0.49Jy
fluence- 15.13± 4.31Jy ms
peak_freqDiffers between sub-bursts.- 559.1MHz
low_freqDiffers between sub-bursts.- 502.0MHz
high_freqDiffers between sub-bursts.- 622.6MHz
sp_idxDiffers between sub-bursts.- 132.84± 20.74
sp_runDiffers between sub-bursts.- -198.64± 30.42
Exposure and fluence thresholds
exp_up- 162.71± 53.75hour
exp_low- 0.00± 0.00hour
low_ft_68- 0.0Jy ms
up_ft_68- 3.3Jy ms
low_ft_95- 0.0Jy ms
up_ft_95- 7.8Jy ms
Fit quality
chi_sq- 1787170.212
dof- 1799961
flag_frac- 0.322