FRB 20190422A
One-off burst
- Event ID
- 37607693
- Arrival, 400 MHz
- 2019-04-22 21:13:25.615 UTC
- Right ascension
- 48.600°
- Declination
- 35.152°
How the sub-bursts differ
This burst has 2 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 |
|---|---|---|
| Arrival time, 400 MHzMJD | 58595.88432425218 | 58595.884324395556 |
| Arrival time, infinite frequencyMJD | 58595.88418845457 | 58595.88418859794 |
| Width (fitburst)s | 0.000555 | 0.000772 |
| Peak frequencyMHz | 645.0 | 595.8 |
| Lowest frequencyMHz | 597.6 | 494.0 |
| Highest frequencyMHz | 696.2 | 718.7 |
| Spectral index | 376.82 | 52.11 |
| Spectral running | -394.71 | -65.46 |
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Notes
- This event was included in Catalog 1.
- The pulse emission region was extended during fluence estimation.
Position
ra- 48.600± 0.192degrees
dec- 35.152± 0.197degrees
gl- 153.30degrees
gb- -19.15degrees
Detection and dispersion
bonsai_snr- 18.3
snr_fitb- 30.0
bonsai_dm- 452.9pc cm⁻³
dm_fitb- 452.8631± 0.11245pc cm⁻³
dm_exc_ne2001- 373.1pc cm⁻³
dm_exc_ymw16- 367.1pc cm⁻³
Arrival time
mjd_400Differs between sub-bursts.- 58595.88432425218± 2.08 × 10⁻⁸MJD
mjd_infDiffers between sub-bursts.- 58595.88418845457± 3.96 × 10⁻⁸MJD
Burst shape
bc_width- 0.01966s
width_fitbDiffers between sub-bursts.- 0.000555± 0.0001678s
scat_time- 0.038306± 0.0039836s
Flux and spectrum
flux- 0.73± 0.30Jy
fluence- 9.35± 2.84Jy ms
peak_freqDiffers between sub-bursts.- 645.0MHz
low_freqDiffers between sub-bursts.- 597.6MHz
high_freqDiffers between sub-bursts.- 696.2MHz
sp_idxDiffers between sub-bursts.- 376.82± 65.74
sp_runDiffers between sub-bursts.- -394.71± 68.05
Exposure and fluence thresholds
exp_up- 98.99± 52.04hour
exp_low- 0.00± 0.00hour
low_ft_68- —
up_ft_68- 8.3Jy ms
low_ft_95- —
up_ft_95- 14.3Jy ms
Fit quality
chi_sq- 1932894.518
dof- 1933782
flag_frac- 0.271