FRB 20181125A
One-off burst
- Arrival, 400 MHz
- 2018-11-25 13:37:30.733 UTC
- Right ascension
- 147.940°
- Declination
- 33.930°
How the sub-bursts differ
This burst has 3 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 | Sub-burst 3 |
|---|---|---|---|
| Arrival time, 400 MHzMJD | 58447.5677167636 | 58447.567716813 | 58447.567716883 |
| Arrival time, infinite frequencyMJD | 58447.567635143 | 58447.567635193 | 58447.567635263 |
| Width (fitburst)s | 0.001280 | 0.001440 | 0.001580 |
| Peak frequencyMHz | 434.5 | 436.6 | 426.5 |
| Highest frequencyMHz | 533.7 | 552.0 | 520.9 |
| Spectral index | 9.00 | 7.30 | 7.30 |
| Spectral running | -54.00 | -41.80 | -58.00 |
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Position
ra- 147.940± 0.180degrees
dec- 33.930± 0.041degrees
gl- 191.59degrees
gb- 51.02degrees
Detection and dispersion
bonsai_snr- 18.3
snr_fitb- 34.5
bonsai_dm- 278.2pc cm⁻³
dm_fitb- 272.1900± 0.02000pc cm⁻³
dm_exc_ne2001- 234.2pc cm⁻³
dm_exc_ymw16- 247.6pc cm⁻³
Arrival time
mjd_400Differs between sub-bursts.- 58447.567716813± 1.10 × 10⁻⁸MJD
mjd_infDiffers between sub-bursts.- 58447.567635193± 1.30 × 10⁻⁸MJD
Burst shape
bc_width- 0.01475s
width_fitbDiffers between sub-bursts.- 0.001440± 0.0001600s
scat_time- <0.0015s
Flux and spectrum
flux- 0.39± 0.33Jy
fluence- 3.20± 2.00Jy ms
peak_freqDiffers between sub-bursts.- 436.6MHz
low_freq- 400.2MHz
high_freqDiffers between sub-bursts.- 552.0MHz
sp_idxDiffers between sub-bursts.- 7.30± 2.30
sp_runDiffers between sub-bursts.- -41.80± 8.70
Exposure and fluence thresholds
exp_up- 9.00± 8.70hour
exp_low- —
low_ft_68- 0.0Jy ms
up_ft_68- 2.9Jy ms
low_ft_95- 0.0Jy ms
up_ft_95- 5.7Jy ms
Fit quality
chi_sq- 614002.141
dof- 611936
flag_frac- 0.345