FRB 20230808D
A burst from FRB20220912A
- Repeater
- FRB20220912A
- Event ID
- 309084662
- Arrival, 400 MHz
- 2023-08-08 10:08:10.431 UTC
- Right ascension
- 347.585°
- Declination
- 48.792°
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 | 60164.42234294921 | 60164.42234318557 |
| Arrival time, infinite frequencyMJD | 60164.42227683362 | 60164.422277069985 |
| Width (fitburst)s | 0.002351 | 0.000614 |
| Peak frequencyMHz | 458.0 | 427.9 |
| Lowest frequencyMHz | 416.4 | 400.2 |
| Highest frequencyMHz | 503.8 | 465.1 |
| Spectral index | 68.44 | 44.45 |
| Spectral running | -253.61 | -331.96 |
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Notes
- The pulse emission region was extended during fluence estimation.
Position
ra- 347.585± 0.215degrees
dec- 48.792± 0.209degrees
gl- 106.29degrees
gb- -10.79degrees
Detection and dispersion
bonsai_snr- 13.8
snr_fitb- 32.3
bonsai_dm- 220.4pc cm⁻³
dm_fitb- 220.4848± 0.08648pc cm⁻³
dm_exc_ne2001- 95.1pc cm⁻³
dm_exc_ymw16- 97.9pc cm⁻³
Arrival time
mjd_400Differs between sub-bursts.- 60164.42234294921± 6.97 × 10⁻⁹MJD
mjd_infDiffers between sub-bursts.- 60164.42227683362± 2.69 × 10⁻⁸MJD
Burst shape
bc_width- 0.00983s
width_fitbDiffers between sub-bursts.- 0.002351± 0.0002089s
scat_time- 0.004993± 0.0005841s
Flux and spectrum
flux- 0.47± 0.19Jy
fluence- 3.88± 0.86Jy ms
peak_freqDiffers between sub-bursts.- 458.0MHz
low_freqDiffers between sub-bursts.- 416.4MHz
high_freqDiffers between sub-bursts.- 503.8MHz
sp_idxDiffers between sub-bursts.- 68.44± 6.73
sp_runDiffers between sub-bursts.- -253.61± 24.53
Exposure and fluence thresholds
exp_up- 114.86± 66.47hour
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- 1779661.210
dof- 1780692
flag_frac- 0.329