FRB 20191025D
One-off burst
- Event ID
- 59794378
- Arrival, 400 MHz
- 2019-10-25 11:41:59.921 UTC
- Right ascension
- 88.954°
- Declination
- 62.437°
How the sub-bursts differ
This burst has 4 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 | Sub-burst 4 |
|---|---|---|---|---|
| Arrival time, 400 MHzMJD | 58781.487499088274 | 58781.48749917953 | 58781.48749922598 | 58781.487499229464 |
| Arrival time, infinite frequencyMJD | 58781.48742439768 | 58781.487424488936 | 58781.48742453539 | 58781.48742453887 |
| Width (fitburst)s | 0.000754 | 0.000467 | 0.000002 | 0.000108 |
| Peak frequencyMHz | 400.2 | 491.0 | 524.3 | 446.3 |
| Lowest frequencyMHz | 400.2 | 400.2 | 480.3 | 400.2 |
| Highest frequencyMHz | 610.2 | 697.7 | 572.4 | 586.1 |
| Spectral index | -3.32 | 7.63 | 161.70 | 6.76 |
| Spectral running | -5.08 | -18.65 | -299.31 | -30.98 |
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Notes
- The pulse emission region was extended during fluence estimation.
- Flux and fluence. Flux/fluence measurement failed due to an ill-defined burst extent.
Position
ra- 88.954± 0.178degrees
dec- 62.437± 0.054degrees
gl- 151.08degrees
gb- 17.77degrees
Detection and dispersion
bonsai_snr- 36.8
snr_fitb- 84.6
bonsai_dm- 247.5pc cm⁻³
dm_fitb- 249.0810± 0.00120pc cm⁻³
dm_exc_ne2001- 164.8pc cm⁻³
dm_exc_ymw16- 147.4pc cm⁻³
Arrival time
mjd_400Differs between sub-bursts.- 58781.487499088274± 1.51 × 10⁻⁹MJD
mjd_infDiffers between sub-bursts.- 58781.48742439768± 1.55 × 10⁻⁹MJD
Burst shape
bc_width- 0.00197s
width_fitbDiffers between sub-bursts.- 0.000754± 0.0001434s
scat_time- 0.001969± 0.0000528s
Flux and spectrum
flux- —
fluence- —
peak_freqDiffers between sub-bursts.- 400.2MHz
low_freqDiffers between sub-bursts.- 400.2MHz
high_freqDiffers between sub-bursts.- 610.2MHz
sp_idxDiffers between sub-bursts.- -3.32± 2.31
sp_runDiffers between sub-bursts.- -5.08± 5.90
Exposure and fluence thresholds
exp_up- 115.72± 104.86hour
exp_low- 0.00± 0.00hour
low_ft_68- —
up_ft_68- —
low_ft_95- —
up_ft_95- —
Fit quality
chi_sq- 2080379.905
dof- 2087510
flag_frac- 0.214