FRB 20200401A
One-off burst
- Event ID
- 79426902
- Arrival, 400 MHz
- 2020-04-01 06:03:04.468 UTC
- Right ascension
- 160.626°
- Declination
- 77.397°
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 | 58940.25213496178 | 58940.2521350512 |
| Arrival time, infinite frequencyMJD | 58940.25179027361 | 58940.25179036303 |
| Width (fitburst)s | 0.002702 | 0.001457 |
| Peak frequencyMHz | 429.4 | 470.6 |
| Highest frequencyMHz | 675.4 | 615.9 |
| Spectral index | 1.58 | 10.31 |
| Spectral running | -11.22 | -31.82 |
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Notes
- The pulse emission region was extended during fluence estimation.
Position
ra- 160.626± 0.178degrees
dec- 77.397± 0.064degrees
gl- 131.37degrees
gb- 37.54degrees
Detection and dispersion
bonsai_snr- 21.0
snr_fitb- 29.9
bonsai_dm- 1145.2pc cm⁻³
dm_fitb- 1149.4793± 0.03601pc cm⁻³
dm_exc_ne2001- 1106.4pc cm⁻³
dm_exc_ymw16- 1113.8pc cm⁻³
Arrival time
mjd_400Differs between sub-bursts.- 58940.2521350512± 3.44 × 10⁻⁹MJD
mjd_infDiffers between sub-bursts.- 58940.25179036303± 1.13 × 10⁻⁸MJD
Burst shape
bc_width- 0.01278s
width_fitbDiffers between sub-bursts.- 0.001457± 0.0001289s
scat_time- 0.000000s
Flux and spectrum
flux- 0.65± 0.29Jy
fluence- 6.98± 1.90Jy ms
peak_freqDiffers between sub-bursts.- 470.6MHz
low_freq- 400.2MHz
high_freqDiffers between sub-bursts.- 615.9MHz
sp_idxDiffers between sub-bursts.- 10.31± 3.18
sp_runDiffers between sub-bursts.- -31.82± 8.63
Exposure and fluence thresholds
exp_up- 336.12± 153.82hour
exp_low- 400.21± 145.73hour
low_ft_68- 15.6Jy ms
up_ft_68- 3.3Jy ms
low_ft_95- 26.7Jy ms
up_ft_95- 5.8Jy ms
Fit quality
chi_sq- 1972267.419
dof- 1973149
flag_frac- 0.257