FRB 20181226A
A burst from FRB20180916B
- Repeater
- FRB20180916B
- Event ID
- 23891929
- Arrival, 400 MHz
- 2018-12-26 03:43:30.105 UTC
- Right ascension
- 29.465°
- Declination
- 65.733°
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 | 58478.155209499666 | 58478.15520954591 |
| Arrival time, infinite frequencyMJD | 58478.15510490357 | 58478.155104949816 |
| Width (fitburst)s | 0.000460 | 0.002858 |
| Peak frequencyMHz | 557.1 | 512.4 |
| Lowest frequencyMHz | 504.0 | 444.6 |
| Highest frequencyMHz | 615.7 | 590.5 |
| Spectral index | 151.94 | 56.51 |
| Spectral running | -229.69 | -114.33 |
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Notes
- This event was included in Catalog 1.
- The pulse emission region was extended during fluence estimation.
Position
ra- 29.465± 0.196degrees
dec- 65.733± 0.204degrees
gl- 129.69degrees
gb- 3.74degrees
Detection and dispersion
bonsai_snr- 16.7
snr_fitb- 65.5
bonsai_dm- 347.8pc cm⁻³
dm_fitb- 348.8111± 0.01027pc cm⁻³
dm_exc_ne2001- 150.2pc cm⁻³
dm_exc_ymw16- 25.8pc cm⁻³
Arrival time
mjd_400Differs between sub-bursts.- 58478.15520954591± 2.87 × 10⁻⁹MJD
mjd_infDiffers between sub-bursts.- 58478.155104949816± 4.21 × 10⁻⁹MJD
Burst shape
bc_width- 0.00688s
width_fitbDiffers between sub-bursts.- 0.002858± 0.0002714s
scat_time- 0.000000s
Flux and spectrum
flux- 1.54± 0.44Jy
fluence- 6.42± 1.14Jy ms
peak_freqDiffers between sub-bursts.- 512.4MHz
low_freqDiffers between sub-bursts.- 444.6MHz
high_freqDiffers between sub-bursts.- 590.5MHz
sp_idxDiffers between sub-bursts.- 56.51± 6.57
sp_runDiffers between sub-bursts.- -114.33± 13.29
Exposure and fluence thresholds
exp_up- 194.04± 105.92hour
exp_low- 0.00± 0.00hour
low_ft_68- 0.0Jy ms
up_ft_68- 4.8Jy ms
low_ft_95- 0.0Jy ms
up_ft_95- 10.6Jy ms
Fit quality
chi_sq- 733754.993
dof- 738037
flag_frac- 0.273