FRB 20190806B
One-off burst
- Event ID
- 46858846
- Arrival, 400 MHz
- 2019-08-06 14:40:38.239 UTC
- Right ascension
- 54.715°
- Declination
- 19.215°
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 | 58701.61155369634 | 58701.611553771814 |
| Arrival time, infinite frequencyMJD | 58701.61129881525 | 58701.611298890726 |
| Width (fitburst)s | 0.000357 | 0.001349 |
| Peak frequencyMHz | 673.3 | 652.9 |
| Lowest frequencyMHz | 637.8 | 575.7 |
| Highest frequencyMHz | 710.7 | 740.6 |
| Spectral index | 818.59 | 142.07 |
| Spectral running | -786.81 | -145.11 |
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Notes
- The pulse emission region was extended during fluence estimation.
Position
ra- 54.715± 0.204degrees
dec- 19.215± 0.236degrees
gl- 168.69degrees
gb- -28.42degrees
Detection and dispersion
bonsai_snr- 15.2
snr_fitb- 23.1
bonsai_dm- 849.2pc cm⁻³
dm_fitb- 849.9872± 0.10759pc cm⁻³
dm_exc_ne2001- 790.8pc cm⁻³
dm_exc_ymw16- 789.4pc cm⁻³
Arrival time
mjd_400Differs between sub-bursts.- 58701.61155369634± 2.09 × 10⁻⁸MJD
mjd_infDiffers between sub-bursts.- 58701.61129881525± 3.84 × 10⁻⁸MJD
Burst shape
bc_width- 0.00295s
width_fitbDiffers between sub-bursts.- 0.000357± 0.0000376s
scat_time- 0.000000s
Flux and spectrum
flux- 1.08± 0.50Jy
fluence- 5.41± 2.00Jy ms
peak_freqDiffers between sub-bursts.- 673.3MHz
low_freqDiffers between sub-bursts.- 637.8MHz
high_freqDiffers between sub-bursts.- 710.7MHz
sp_idxDiffers between sub-bursts.- 818.59± 423.08
sp_runDiffers between sub-bursts.- -786.81± 404.57
Exposure and fluence thresholds
exp_up- 82.80± 45.52hour
exp_low- 0.00± 0.00hour
low_ft_68- —
up_ft_68- 4.6Jy ms
low_ft_95- —
up_ft_95- 8.4Jy ms
Fit quality
chi_sq- 2084406.728
dof- 2084929
flag_frac- 0.214