FRB 20211119B
One-off burst
- Event ID
- 198254605
- Arrival, 400 MHz
- 2021-11-19 08:48:45.560 UTC
- Right ascension
- 70.301°
- Declination
- 8.768°
How the sub-bursts differ
This burst has 3 sub-bursts. These 7 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 |
|---|---|---|---|
| Arrival time, 400 MHzMJD | 59537.367193849575 | 59537.36719390324 | 59537.367193980965 |
| Arrival time, infinite frequencyMJD | 59537.36705024418 | 59537.36705029785 | 59537.36705037558 |
| Width (fitburst)s | 0.000480 | 0.003193 | 0.001959 |
| Peak frequencyMHz | 405.1 | 410.7 | 410.3 |
| Highest frequencyMHz | 474.4 | 482.5 | 484.2 |
| Spectral index | 2.23 | 4.60 | 4.18 |
| Spectral running | -92.28 | -88.74 | -83.89 |
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Notes
- The pulse emission region was extended during fluence estimation.
Position
ra- 70.301± 0.029degrees
dec- 8.768± 0.214degrees
gl- 188.51degrees
gb- -23.82degrees
Detection and dispersion
bonsai_snr- 31.1
snr_fitb- 60.1
bonsai_dm- 479.6pc cm⁻³
dm_fitb- 478.9008± 0.01282pc cm⁻³
dm_exc_ne2001- 412.8pc cm⁻³
dm_exc_ymw16- 391.6pc cm⁻³
Arrival time
mjd_400Differs between sub-bursts.- 59537.367193980965± 2.65 × 10⁻⁹MJD
mjd_infDiffers between sub-bursts.- 59537.36705037558± 4.67 × 10⁻⁹MJD
Burst shape
bc_width- 0.01475s
width_fitbDiffers between sub-bursts.- 0.001959± 0.0002109s
scat_time- 0.000000s
Flux and spectrum
flux- 1.45± 0.72Jy
fluence- 17.42± 8.65Jy ms
peak_freqDiffers between sub-bursts.- 410.3MHz
low_freq- 400.2MHz
high_freqDiffers between sub-bursts.- 484.2MHz
sp_idxDiffers between sub-bursts.- 4.18± 3.27
sp_runDiffers between sub-bursts.- -83.89± 19.33
Exposure and fluence thresholds
exp_up- 91.30± 35.12hour
exp_low- 0.00± 0.00hour
low_ft_68- —
up_ft_68- 2.7Jy ms
low_ft_95- —
up_ft_95- 5.1Jy ms
Fit quality
chi_sq- 1783735.624
dof- 1787330
flag_frac- 0.327