FRB 20220806A
One-off burst
- Event ID
- 238471565
- Arrival, 400 MHz
- 2022-08-06 18:14:36.007 UTC
- Right ascension
- 106.034°
- Declination
- 38.393°
How the sub-bursts differ
This burst has 2 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 |
|---|---|---|
| Arrival time, 400 MHzMJD | 59797.76013896587 | 59797.76013900221 |
| Arrival time, infinite frequencyMJD | 59797.760031662496 | 59797.76003169883 |
| Width (fitburst)s | 0.000572 | 0.001652 |
| Peak frequencyMHz | 665.8 | 679.8 |
| Lowest frequencyMHz | 603.9 | 579.8 |
| Highest frequencyMHz | 734.0 | 797.2 |
| Spectral index | 246.07 | 96.29 |
| Spectral running | -241.73 | -90.85 |
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Notes
- The pulse emission region was extended during fluence estimation.
Position
ra- 106.034± 0.124degrees
dec- 38.393± 0.116degrees
gl- 178.68degrees
gb- 18.77degrees
Detection and dispersion
bonsai_snr- 27.9
snr_fitb- 57.5
bonsai_dm- 357.1pc cm⁻³
dm_fitb- 357.8394± 0.04931pc cm⁻³
dm_exc_ne2001- 273.7pc cm⁻³
dm_exc_ymw16- 251.5pc cm⁻³
Arrival time
mjd_400Differs between sub-bursts.- 59797.76013896587± 9.52 × 10⁻⁹MJD
mjd_infDiffers between sub-bursts.- 59797.760031662496± 1.76 × 10⁻⁸MJD
Burst shape
bc_width- 0.00688s
width_fitbDiffers between sub-bursts.- 0.000572± 0.0000336s
scat_time- 0.000000s
Flux and spectrum
flux- 1.60± 0.55Jy
fluence- 8.14± 2.31Jy ms
peak_freqDiffers between sub-bursts.- 665.8MHz
low_freqDiffers between sub-bursts.- 603.9MHz
high_freqDiffers between sub-bursts.- 734.0MHz
sp_idxDiffers between sub-bursts.- 246.07± 38.32
sp_runDiffers between sub-bursts.- -241.73± 37.27
Exposure and fluence thresholds
exp_up- 124.53± 38.85hour
exp_low- 0.00± 0.00hour
low_ft_68- —
up_ft_68- 3.2Jy ms
low_ft_95- —
up_ft_95- 5.4Jy ms
Fit quality
chi_sq- 695806.456
dof- 699101
flag_frac- 0.312