FRB 20220329B
A burst from FRB20200619A
- Repeater
- FRB20200619A
- Event ID
- 218607166
- Arrival, 400 MHz
- 2022-03-29 13:38:24.987 UTC
- Right ascension
- 272.525°
- Declination
- 55.530°
How the sub-bursts differ
This burst has 3 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 | Sub-burst 3 |
|---|---|---|---|
| Arrival time, 400 MHzMJD | 59667.56834466284 | 59667.568344758205 | 59667.5683449019 |
| Arrival time, infinite frequencyMJD | 59667.56821282185 | 59667.56821291721 | 59667.568213060906 |
| Width (fitburst)s | 0.000778 | 0.004781 | 0.000929 |
| Peak frequencyMHz | 560.7 | 520.2 | 449.5 |
| Lowest frequencyMHz | 474.3 | 425.1 | 400.2 |
| Highest frequencyMHz | 662.8 | 636.6 | 535.9 |
| Spectral index | 55.41 | 29.62 | 17.24 |
| Spectral running | -82.17 | -56.46 | -74.30 |
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Notes
- The pulse emission region was extended during fluence estimation.
Position
ra- 272.525± 0.226degrees
dec- 55.530± 0.225degrees
gl- 83.93degrees
gb- 27.79degrees
Detection and dispersion
bonsai_snr- 10.9
snr_fitb- 16.9
bonsai_dm- 440.8pc cm⁻³
dm_fitb- 439.6684± 0.05170pc cm⁻³
dm_exc_ne2001- 388.7pc cm⁻³
dm_exc_ymw16- 394.8pc cm⁻³
Arrival time
mjd_400Differs between sub-bursts.- 59667.568344758205± 1.23 × 10⁻⁸MJD
mjd_infDiffers between sub-bursts.- 59667.56821291721± 1.98 × 10⁻⁸MJD
Burst shape
bc_width- 0.03244s
width_fitbDiffers between sub-bursts.- 0.004781± 0.0010434s
scat_time- 0.000000s
Flux and spectrum
flux- 0.22± 0.08Jy
fluence- 3.34± 0.67Jy ms
peak_freqDiffers between sub-bursts.- 520.2MHz
low_freqDiffers between sub-bursts.- 425.1MHz
high_freqDiffers between sub-bursts.- 636.6MHz
sp_idxDiffers between sub-bursts.- 29.62± 7.29
sp_runDiffers between sub-bursts.- -56.46± 12.99
Exposure and fluence thresholds
exp_up- 130.89± 77.96hour
exp_low- 0.00± 0.00hour
low_ft_68- 0.0Jy ms
up_ft_68- 1.7Jy ms
low_ft_95- 0.0Jy ms
up_ft_95- 3.7Jy ms
Fit quality
chi_sq- 1911798.861
dof- 1912070
flag_frac- 0.280