FRB 20210513B
One-off burst
- Event ID
- 170995728
- Arrival, 400 MHz
- 2021-05-13 04:35:12.352 UTC
- Right ascension
- 180.536°
- Declination
- 9.208°
How the sub-bursts differ
This burst has 2 sub-bursts. These 7 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 | 59347.19111514503 | 59347.19111518247 |
| Arrival time, infinite frequencyMJD | 59347.19102641659 | 59347.19102645402 |
| Width (fitburst)s | 0.000221 | 0.000451 |
| Peak frequencyMHz | 448.9 | 409.2 |
| Highest frequencyMHz | 682.9 | 633.1 |
| Spectral index | 3.00 | 0.54 |
| Spectral running | -13.07 | -12.09 |
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Notes
- The pulse emission region was extended during fluence estimation.
Position
ra- 180.536± 0.214degrees
dec- 9.208± 0.086degrees
gl- 267.61degrees
gb- 68.63degrees
Detection and dispersion
bonsai_snr- 19.5
snr_fitb- 29.0
bonsai_dm- 295.6pc cm⁻³
dm_fitb- 295.8950± 0.00570pc cm⁻³
dm_exc_ne2001- 266.6pc cm⁻³
dm_exc_ymw16- 274.6pc cm⁻³
Arrival time
mjd_400Differs between sub-bursts.- 59347.19111518247± 1.43 × 10⁻⁹MJD
mjd_infDiffers between sub-bursts.- 59347.19102645402± 2.22 × 10⁻⁹MJD
Burst shape
bc_width- 0.00197s
width_fitbDiffers between sub-bursts.- 0.000451± 0.0001321s
scat_time- 0.002079± 0.0001977s
Flux and spectrum
flux- 1.34± 0.59Jy
fluence- 6.45± 2.30Jy ms
peak_freqDiffers between sub-bursts.- 409.2MHz
low_freq- 400.2MHz
high_freqDiffers between sub-bursts.- 633.1MHz
sp_idxDiffers between sub-bursts.- 0.54± 3.37
sp_runDiffers between sub-bursts.- -12.09± 8.13
Exposure and fluence thresholds
exp_up- 28.00± 32.68hour
exp_low- 0.00± 0.00hour
low_ft_68- —
up_ft_68- 1.5Jy ms
low_ft_95- —
up_ft_95- 3.3Jy ms
Fit quality
chi_sq- 1840289.816
dof- 1841118
flag_frac- 0.306