FRB 20211112B
One-off burst
- Event ID
- 196952583
- Arrival, 400 MHz
- 2021-11-12 19:22:25.944 UTC
- Right ascension
- 222.089°
- Declination
- 6.294°
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 | 59530.807244494965 | 59530.80724471695 |
| Arrival time, infinite frequencyMJD | 59530.806888604544 | 59530.806888826526 |
| Width (fitburst)s | 0.000637 | 0.000127 |
| Peak frequencyMHz | 497.8 | 437.6 |
| Lowest frequencyMHz | 425.5 | 400.2 |
| Highest frequencyMHz | 582.5 | 514.4 |
| Spectral index | 40.72 | 15.75 |
| Spectral running | -93.26 | -88.09 |
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Notes
- The pulse emission region was extended during fluence estimation.
Position
ra- 222.089± 0.220degrees
dec- 6.294± 0.299degrees
gl- 1.39degrees
gb- 55.28degrees
Detection and dispersion
bonsai_snr- 12.9
snr_fitb- 21.9
bonsai_dm- 1185.2pc cm⁻³
dm_fitb- 1186.8370± 0.02716pc cm⁻³
dm_exc_ne2001- 1160.0pc cm⁻³
dm_exc_ymw16- 1161.6pc cm⁻³
Arrival time
mjd_400Differs between sub-bursts.- 59530.80724471695± 1.90 × 10⁻⁹MJD
mjd_infDiffers between sub-bursts.- 59530.806888826526± 8.36 × 10⁻⁹MJD
Burst shape
bc_width- 0.00590s
width_fitbDiffers between sub-bursts.- 0.000127± 0.0000859s
scat_time- 0.009656± 0.0009413s
Flux and spectrum
flux- 0.71± 0.35Jy
fluence- 4.72± 0.57Jy ms
peak_freqDiffers between sub-bursts.- 437.6MHz
low_freqDiffers between sub-bursts.- 400.2MHz
high_freqDiffers between sub-bursts.- 514.4MHz
sp_idxDiffers between sub-bursts.- 15.75± 3.87
sp_runDiffers between sub-bursts.- -88.09± 16.13
Exposure and fluence thresholds
exp_up- 69.19± 41.98hour
exp_low- 0.00± 0.00hour
low_ft_68- —
up_ft_68- 1.0Jy ms
low_ft_95- —
up_ft_95- 1.6Jy ms
Fit quality
chi_sq- 1644146.389
dof- 1644612
flag_frac- 0.380