FRB 20200427A
One-off burst
- Event ID
- 82325864
- Arrival, 400 MHz
- 2020-04-27 22:44:05.124 UTC
- Right ascension
- 82.540°
- Declination
- 72.344°
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 | 58966.94728139371 | 58966.947281529414 |
| Arrival time, infinite frequencyMJD | 58966.94718873683 | 58966.94718887253 |
| Width (fitburst)s | 0.000616 | 0.001682 |
| Peak frequencyMHz | 536.3 | 800.2 |
| Lowest frequencyMHz | 459.3 | 793.1 |
| Highest frequencyMHz | 626.3 | 800.2 |
| Spectral index | 56.10 | 1789.48 |
| Spectral running | -95.80 | -1112.57 |
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Notes
- The pulse emission region was extended during fluence estimation.
Position
ra- 82.540± 0.093degrees
dec- 72.344± 0.134degrees
gl- 140.54degrees
gb- 19.92degrees
Detection and dispersion
bonsai_snr- 39.2
snr_fitb- 99.8
bonsai_dm- 308.9pc cm⁻³
dm_fitb- 308.9957± 0.00499pc cm⁻³
dm_exc_ne2001- 233.8pc cm⁻³
dm_exc_ymw16- 222.7pc cm⁻³
Arrival time
mjd_400Differs between sub-bursts.- 58966.947281529414± 1.08 × 10⁻⁸MJD
mjd_infDiffers between sub-bursts.- 58966.94718887253± 1.09 × 10⁻⁸MJD
Burst shape
bc_width- 0.00197s
width_fitbDiffers between sub-bursts.- 0.001682± 0.0008421s
scat_time- 0.000000s
Flux and spectrum
flux- 4.66± 2.44Jy
fluence- 14.46± 7.26Jy ms
peak_freqDiffers between sub-bursts.- 800.2MHz
low_freqDiffers between sub-bursts.- 793.1MHz
high_freqDiffers between sub-bursts.- 800.2MHz
sp_idxDiffers between sub-bursts.- 1789.48± 51567.79
sp_runDiffers between sub-bursts.- -1112.57± 37475.59
Exposure and fluence thresholds
exp_up- 166.75± 145.00hour
exp_low- 267.97± 46.57hour
low_ft_68- 50.4Jy ms
up_ft_68- 6.0Jy ms
low_ft_95- 90.2Jy ms
up_ft_95- 11.4Jy ms
Fit quality
chi_sq- 468519.177
dof- 478469
flag_frac- 0.270