FRB 20211108A
One-off burst
- Event ID
- 196145826
- Arrival, 400 MHz
- 2021-11-08 03:25:18.960 UTC
- Right ascension
- 338.845°
- Declination
- 29.023°
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 | 59526.14258050952 | 59526.14258055405 |
| Arrival time, infinite frequencyMJD | 59526.14227427493 | 59526.14227431945 |
| Width (fitburst)s | 0.000038 | 0.000000 |
| Peak frequencyMHz | 588.2 | 467.9 |
| Lowest frequencyMHz | 405.7 | 400.2 |
| Highest frequencyMHz | 800.2 | 590.9 |
| Spectral index | 12.84 | 13.19 |
| Spectral running | -16.67 | -42.22 |
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Notes
- The pulse emission region was extended during fluence estimation.
Position
ra- 338.845± 0.025degrees
dec- 29.023± 0.160degrees
gl- 90.24degrees
gb- -25.08degrees
Detection and dispersion
bonsai_snr- 25.2
snr_fitb- 36.7
bonsai_dm- 1021.0pc cm⁻³
dm_fitb- 1021.2429± 0.00076pc cm⁻³
dm_exc_ne2001- 965.4pc cm⁻³
dm_exc_ymw16- 973.5pc cm⁻³
Arrival time
mjd_400Differs between sub-bursts.- 59526.14258055405± 7.17 × 10⁻¹¹MJD
mjd_infDiffers between sub-bursts.- 59526.14227431945± 2.37 × 10⁻¹⁰MJD
Burst shape
bc_width- 0.01475s
width_fitbDiffers between sub-bursts.- 0.000000± 0.0000022s
scat_time- 0.008470± 0.0004800s
Flux and spectrum
flux- 1.17± 0.41Jy
fluence- 10.81± 2.98Jy ms
peak_freqDiffers between sub-bursts.- 467.9MHz
low_freqDiffers between sub-bursts.- 400.2MHz
high_freqDiffers between sub-bursts.- 590.9MHz
sp_idxDiffers between sub-bursts.- 13.19± 2.17
sp_runDiffers between sub-bursts.- -42.22± 5.75
Exposure and fluence thresholds
exp_up- 105.18± 30.98hour
exp_low- 0.00± 0.00hour
low_ft_68- —
up_ft_68- 3.0Jy ms
low_ft_95- —
up_ft_95- 5.1Jy ms
Fit quality
chi_sq- 1897456.271
dof- 1898790
flag_frac- 0.285