FRB 20221205B
A burst from FRB20220912A
- Repeater
- FRB20220912A
- Event ID
- 253962520
- Arrival, 400 MHz
- 2022-12-05 02:10:34.137 UTC
- Right ascension
- 347.292°
- Declination
- 48.813°
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 | 59918.09067269715 | 59918.0906728849 |
| Arrival time, infinite frequencyMJD | 59918.09060565314 | 59918.09060584089 |
| Width (fitburst)s | 0.004397 | 0.005261 |
| Peak frequencyMHz | 619.1 | 593.4 |
| Lowest frequencyMHz | 548.6 | 452.8 |
| Highest frequencyMHz | 698.8 | 777.7 |
| Spectral index | 137.20 | 24.79 |
| Spectral running | -157.21 | -31.46 |
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Notes
- The pulse emission region was extended during fluence estimation.
Position
ra- 347.292± 0.140degrees
dec- 48.813± 0.174degrees
gl- 106.12degrees
gb- -10.69degrees
Detection and dispersion
bonsai_snr- 17.6
snr_fitb- 34.4
bonsai_dm- 224.8pc cm⁻³
dm_fitb- 223.5809± 0.13602pc cm⁻³
dm_exc_ne2001- 97.3pc cm⁻³
dm_exc_ymw16- 100.1pc cm⁻³
Arrival time
mjd_400Differs between sub-bursts.- 59918.0906728849± 2.22 × 10⁻⁸MJD
mjd_infDiffers between sub-bursts.- 59918.09060584089± 4.64 × 10⁻⁸MJD
Burst shape
bc_width- 0.02851s
width_fitbDiffers between sub-bursts.- 0.005261± 0.0003935s
scat_time- 0.000000s
Flux and spectrum
flux- 0.70± 0.41Jy
fluence- 13.08± 5.32Jy ms
peak_freqDiffers between sub-bursts.- 593.4MHz
low_freqDiffers between sub-bursts.- 452.8MHz
high_freqDiffers between sub-bursts.- 777.7MHz
sp_idxDiffers between sub-bursts.- 24.79± 2.82
sp_runDiffers between sub-bursts.- -31.46± 3.48
Exposure and fluence thresholds
exp_up- 129.39± 58.51hour
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- 1935524.785
dof- 1936699
flag_frac- 0.270