FRB 20230826B
A burst from FRB20220912A
- Repeater
- FRB20220912A
- Event ID
- 312912787
- Arrival, 400 MHz
- 2023-08-26 08:51:45.741 UTC
- Right ascension
- 347.403°
- Declination
- 48.802°
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 | 60182.36927906575 | 60182.36927941197 |
| Arrival time, infinite frequencyMJD | 60182.369211227204 | 60182.36921157342 |
| Width (fitburst)s | 0.006311 | 0.010501 |
| Peak frequencyMHz | 639.1 | 520.4 |
| Lowest frequencyMHz | 586.4 | 415.3 |
| Highest frequencyMHz | 696.5 | 652.1 |
| Spectral index | 291.46 | 23.77 |
| Spectral running | -311.33 | -45.25 |
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Notes
- The pulse emission region was extended during fluence estimation.
- Flux and fluence. Flux/fluence could not be determined due to an unspecified computational failure in the fluence pipeline.
Position
ra- 347.403± 0.199degrees
dec- 48.802± 0.198degrees
gl- 106.18degrees
gb- -10.73degrees
Detection and dispersion
bonsai_snr- 14.9
snr_fitb- 28.1
bonsai_dm- 231.3pc cm⁻³
dm_fitb- 226.2306± 0.32124pc cm⁻³
dm_exc_ne2001- 100.3pc cm⁻³
dm_exc_ymw16- 103.1pc cm⁻³
Arrival time
mjd_400Differs between sub-bursts.- 60182.36927941197± 3.81 × 10⁻⁸MJD
mjd_infDiffers between sub-bursts.- 60182.36921157342± 1.04 × 10⁻⁷MJD
Burst shape
bc_width- 0.04915s
width_fitbDiffers between sub-bursts.- 0.010501± 0.0006626s
scat_time- 0.000000s
Flux and spectrum
flux- —
fluence- —
peak_freqDiffers between sub-bursts.- 520.4MHz
low_freqDiffers between sub-bursts.- 415.3MHz
high_freqDiffers between sub-bursts.- 652.1MHz
sp_idxDiffers between sub-bursts.- 23.77± 2.87
sp_runDiffers between sub-bursts.- -45.25± 5.27
Exposure and fluence thresholds
exp_up- 117.48± 65.04hour
exp_low- 0.00± 0.00hour
low_ft_68- 0.0Jy ms
up_ft_68- 2.6Jy ms
low_ft_95- 0.0Jy ms
up_ft_95- 7.1Jy ms
Fit quality
chi_sq- 1109990.137
dof- 1110769
flag_frac- 0.335