FRB 20230325B
A burst from FRB20220912A
- Repeater
- FRB20220912A
- Event ID
- 278823953
- Arrival, 400 MHz
- 2023-03-25 18:59:27.388 UTC
- Right ascension
- 347.349°
- Declination
- 48.798°
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 | 60028.79128960013 | 60028.791289210414 |
| Arrival time, infinite frequencyMJD | 60028.7912241021 | 60028.79122371238 |
| Width (fitburst)s | 0.004551 | 0.003554 |
| Peak frequencyMHz | 668.8 | 740.0 |
| Lowest frequencyMHz | 603.3 | 694.1 |
| Highest frequencyMHz | 741.5 | 789.0 |
| Spectral index | 222.36 | 688.96 |
| Spectral running | -216.47 | -560.43 |
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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- 347.349± 0.223degrees
dec- 48.798± 0.230degrees
gl- 106.15degrees
gb- -10.72degrees
Detection and dispersion
bonsai_snr- 11.4
snr_fitb- 39.5
bonsai_dm- 218.8pc cm⁻³
dm_fitb- 218.4254± 0.34953pc cm⁻³
dm_exc_ne2001- 92.4pc cm⁻³
dm_exc_ymw16- 95.3pc cm⁻³
Arrival time
mjd_400Differs between sub-bursts.- 60028.791289210414± 7.47 × 10⁻⁸MJD
mjd_infDiffers between sub-bursts.- 60028.79122371238± 1.29 × 10⁻⁷MJD
Burst shape
bc_width- 0.00885s
width_fitbDiffers between sub-bursts.- 0.003554± 0.0003030s
scat_time- 0.050954± 0.0077298s
Flux and spectrum
flux- —
fluence- —
peak_freqDiffers between sub-bursts.- 740.0MHz
low_freqDiffers between sub-bursts.- 694.1MHz
high_freqDiffers between sub-bursts.- 789.0MHz
sp_idxDiffers between sub-bursts.- 688.96± 32.35
sp_runDiffers between sub-bursts.- -560.43± 26.29
Exposure and fluence thresholds
exp_up- 116.17± 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- 1931100.870
dof- 1932648
flag_frac- 0.272