FRB 20190501B
One-off burst
- Event ID
- 38536189
- Arrival, 400 MHz
- 2019-05-01 10:53:49.289 UTC
- Right ascension
- 261.431°
- Declination
- 54.363°
How the sub-bursts differ
This burst has 2 sub-bursts. These 6 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 | 58604.45404269971 | 58604.45404273477 |
| Arrival time, infinite frequencyMJD | 58604.45380760361 | 58604.45380763867 |
| Width (fitburst)s | 0.000642 | 0.000915 |
| Highest frequencyMHz | 687.5 | 800.2 |
| Spectral index | -0.09 | -1.91 |
| Spectral running | -7.69 | -0.58 |
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Notes
- This event was included in Catalog 1.
- The pulse emission region was extended during fluence estimation.
Position
ra- 261.431± 0.184degrees
dec- 54.363± 0.180degrees
gl- 82.04degrees
gb- 34.06degrees
Detection and dispersion
bonsai_snr- 24.3
snr_fitb- 30.1
bonsai_dm- 784.5pc cm⁻³
dm_fitb- 784.0075± 0.00679pc cm⁻³
dm_exc_ne2001- 740.5pc cm⁻³
dm_exc_ymw16- 747.5pc cm⁻³
Arrival time
mjd_400Differs between sub-bursts.- 58604.45404269971± 7.15 × 10⁻¹⁰MJD
mjd_infDiffers between sub-bursts.- 58604.45380760361± 2.16 × 10⁻⁹MJD
Burst shape
bc_width- 0.00492s
width_fitbDiffers between sub-bursts.- 0.000642± 0.0000277s
scat_time- 0.000000s
Flux and spectrum
flux- 0.90± 0.22Jy
fluence- 3.19± 0.59Jy ms
peak_freq- 400.2MHz
low_freq- 400.2MHz
high_freqDiffers between sub-bursts.- 687.5MHz
sp_idxDiffers between sub-bursts.- -0.09± 0.98
sp_runDiffers between sub-bursts.- -7.69± 2.24
Exposure and fluence thresholds
exp_up- 122.82± 76.20hour
exp_low- 0.00± 0.00hour
low_ft_68- —
up_ft_68- 0.4Jy ms
low_ft_95- —
up_ft_95- 0.6Jy ms
Fit quality
chi_sq- 1933213.902
dof- 1934107
flag_frac- 0.271