FRB 20230805B
A burst from FRB20220912A
- Repeater
- FRB20220912A
- Event ID
- 308336469
- Arrival, 400 MHz
- 2023-08-05 10:17:54.545 UTC
- Right ascension
- 347.060°
- Declination
- 48.787°
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 | 60161.42910311457 | 60161.429103526425 |
| Arrival time, infinite frequencyMJD | 60161.42903637605 | 60161.42903678791 |
| Width (fitburst)s | 0.006355 | 0.008974 |
| Peak frequencyMHz | 539.2 | 471.0 |
| Lowest frequencyMHz | 469.5 | 405.5 |
| Highest frequencyMHz | 619.3 | 547.0 |
| Spectral index | 71.59 | 33.48 |
| Spectral running | -120.08 | -102.75 |
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Notes
- This event should be excluded from parameter inference due to non-nominal telescope operation.
- The pulse emission region was extended during fluence estimation.
- Exposure. Event occurred during a period when real-time grouping/classification (L2/L3) was non-functional and should be excluded from population studies.
Position
ra- 347.060± 0.247degrees
dec- 48.787± 0.245degrees
gl- 105.97degrees
gb- -10.66degrees
Detection and dispersion
bonsai_snr- 8.6
snr_fitb- 14.9
bonsai_dm- 228.1pc cm⁻³
dm_fitb- 222.5622± 1.10195pc cm⁻³
dm_exc_ne2001- 95.9pc cm⁻³
dm_exc_ymw16- 98.8pc cm⁻³
Arrival time
mjd_400Differs between sub-bursts.- 60161.429103526425± 8.56 × 10⁻⁸MJD
mjd_infDiffers between sub-bursts.- 60161.42903678791± 3.41 × 10⁻⁷MJD
Burst shape
bc_width- 0.02458s
width_fitbDiffers between sub-bursts.- 0.008974± 0.0013393s
scat_time- 0.000000s
Flux and spectrum
flux- —
fluence- —
peak_freqDiffers between sub-bursts.- 471.0MHz
low_freqDiffers between sub-bursts.- 405.5MHz
high_freqDiffers between sub-bursts.- 547.0MHz
sp_idxDiffers between sub-bursts.- 33.48± 7.39
sp_runDiffers between sub-bursts.- -102.75± 22.26
Exposure and fluence thresholds
exp_up- 113.28± 65.92hour
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- 1530030.486
dof- 1530241
flag_frac- 0.423