FRB 20210929C
A burst from FRB20180916B
- Repeater
- FRB20180916B
- Event ID
- 188553320
- Arrival, 400 MHz
- 2021-09-29 09:21:04.293 UTC
- Right ascension
- 29.543°
- Declination
- 65.721°
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 | 59486.38963301564 | 59486.38963324466 |
| Arrival time, infinite frequencyMJD | 59486.389528155145 | 59486.38952838416 |
| Width (fitburst)s | 0.002462 | 0.001586 |
| Peak frequencyMHz | 699.4 | 545.2 |
| Lowest frequencyMHz | 575.6 | 448.1 |
| Highest frequencyMHz | 800.2 | 663.3 |
| Spectral index | 67.67 | 37.02 |
| Spectral running | -60.60 | -59.87 |
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Notes
- The pulse emission region was extended during fluence estimation.
Position
ra- 29.543± 0.224degrees
dec- 65.721± 0.236degrees
gl- 129.73degrees
gb- 3.73degrees
Detection and dispersion
bonsai_snr- 10.6
snr_fitb- 20.5
bonsai_dm- 349.0pc cm⁻³
dm_fitb- 349.6928± 0.07063pc cm⁻³
dm_exc_ne2001- 151.1pc cm⁻³
dm_exc_ymw16- 26.7pc cm⁻³
Arrival time
mjd_400Differs between sub-bursts.- 59486.38963301564± 1.49 × 10⁻⁸MJD
mjd_infDiffers between sub-bursts.- 59486.389528155145± 2.59 × 10⁻⁸MJD
Burst shape
bc_width- 0.02654s
width_fitbDiffers between sub-bursts.- 0.002462± 0.0004908s
scat_time- 0.000000s
Flux and spectrum
flux- 0.62± 0.20Jy
fluence- 3.38± 0.46Jy ms
peak_freqDiffers between sub-bursts.- 699.4MHz
low_freqDiffers between sub-bursts.- 575.6MHz
high_freqDiffers between sub-bursts.- 800.2MHz
sp_idxDiffers between sub-bursts.- 67.67± 28.01
sp_runDiffers between sub-bursts.- -60.60± 24.50
Exposure and fluence thresholds
exp_up- 186.40± 109.64hour
exp_low- 0.00± 0.00hour
low_ft_68- 0.0Jy ms
up_ft_68- 4.5Jy ms
low_ft_95- 0.0Jy ms
up_ft_95- 10.0Jy ms
Fit quality
chi_sq- 1887529.155
dof- 1887937
flag_frac- 0.289