FRB 20190825B
A burst from FRB20180916B
- Repeater
- FRB20180916B
- Event ID
- 51101217
- Arrival, 400 MHz
- 2019-08-25 11:52:03.037 UTC
- Right ascension
- 29.455°
- Declination
- 65.720°
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 | 58720.49447880144 | 58720.49447958959 |
| Arrival time, infinite frequencyMJD | 58720.494374190486 | 58720.49437497865 |
| Width (fitburst)s | 0.000328 | 0.001423 |
| Peak frequencyMHz | 454.5 | 515.1 |
| Lowest frequencyMHz | 400.2 | 448.7 |
| Highest frequencyMHz | 547.1 | 591.4 |
| Spectral index | 17.05 | 60.93 |
| Spectral running | -66.95 | -120.67 |
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Position
ra- 29.455± 0.236degrees
dec- 65.720± 0.246degrees
gl- 129.69degrees
gb- 3.72degrees
Detection and dispersion
bonsai_snr- 10.5
snr_fitb- 21.3
bonsai_dm- 346.1pc cm⁻³
dm_fitb- 348.8606± 0.08320pc cm⁻³
dm_exc_ne2001- 150.1pc cm⁻³
dm_exc_ymw16- 25.7pc cm⁻³
Arrival time
mjd_400Differs between sub-bursts.- 58720.49447958959± 1.12 × 10⁻⁸MJD
mjd_infDiffers between sub-bursts.- 58720.49437497865± 2.73 × 10⁻⁸MJD
Burst shape
bc_width- 0.00590s
width_fitbDiffers between sub-bursts.- 0.001423± 0.0003130s
scat_time- 0.008580± 0.0012675s
Flux and spectrum
flux- 0.33± 0.18Jy
fluence- 2.67± 0.70Jy ms
peak_freqDiffers between sub-bursts.- 515.1MHz
low_freqDiffers between sub-bursts.- 448.7MHz
high_freqDiffers between sub-bursts.- 591.4MHz
sp_idxDiffers between sub-bursts.- 60.93± 14.60
sp_runDiffers between sub-bursts.- -120.67± 28.24
Exposure and fluence thresholds
exp_up- 184.54± 110.22hour
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- 4146919.074
dof- 4147360
flag_frac- 0.224