FRB 20190423A
One-off burst
- Event ID
- 37637444
- Arrival, 400 MHz
- 2019-04-23 05:59:40.271 UTC
- Right ascension
- 179.463°
- Declination
- 55.243°
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 | 58596.24977164993 | 58596.249771690316 |
| Arrival time, infinite frequencyMJD | 58596.249698886044 | 58596.24969892643 |
| Width (fitburst)s | 0.000636 | 0.002635 |
| Peak frequencyMHz | 490.6 | 414.3 |
| Highest frequencyMHz | 641.5 | 595.0 |
| Spectral index | 13.05 | 1.22 |
| Spectral running | -32.02 | -17.57 |
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Notes
- This event was included in Catalog 1.
- The pulse emission region was extended during fluence estimation.
Position
ra- 179.463± 0.060degrees
dec- 55.243± 0.152degrees
gl- 138.37degrees
gb- 60.25degrees
Detection and dispersion
bonsai_snr- 39.0
snr_fitb- 436.1
bonsai_dm- 244.2pc cm⁻³
dm_fitb- 242.6558± 0.00114pc cm⁻³
dm_exc_ne2001- 211.1pc cm⁻³
dm_exc_ymw16- 220.2pc cm⁻³
Arrival time
mjd_400Differs between sub-bursts.- 58596.24977164993± 1.24 × 10⁻¹⁰MJD
mjd_infDiffers between sub-bursts.- 58596.249698886044± 3.64 × 10⁻¹⁰MJD
Burst shape
bc_width- 0.00688s
width_fitbDiffers between sub-bursts.- 0.000636± 0.0000038s
scat_time- 0.000000s
Flux and spectrum
flux- 8.25± 1.31Jy
fluence- 43.30± 6.74Jy ms
peak_freqDiffers between sub-bursts.- 490.6MHz
low_freq- 400.2MHz
high_freqDiffers between sub-bursts.- 641.5MHz
sp_idxDiffers between sub-bursts.- 13.05± 0.22
sp_runDiffers between sub-bursts.- -32.02± 0.46
Exposure and fluence thresholds
exp_up- 146.23± 62.25hour
exp_low- 0.00± 0.00hour
low_ft_68- —
up_ft_68- 6.1Jy ms
low_ft_95- —
up_ft_95- 9.6Jy ms
Fit quality
chi_sq- 1847494.677
dof- 2037625
flag_frac- 0.232