FRB 20190519A
A burst from FRB20180916B
- Repeater
- FRB20180916B
- Arrival, 400 MHz
- 2019-05-19 17:50:25.645 UTC
- Right ascension
- 29.503°
- Declination
- 65.717°
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 | 58622.7433523157 | 58622.7433523744 |
| Arrival time, infinite frequencyMJD | 58622.7432477491 | 58622.7432478078 |
| Width (fitburst)s | 0.000269 | 0.001280 |
| Peak frequencyMHz | 521.3 | 480.6 |
| Lowest frequencyMHz | 466.0 | 433.4 |
| Highest frequencyMHz | 583.2 | 532.9 |
| Spectral index | 96.60 | 78.90 |
| Spectral running | -183.00 | -215.00 |
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Notes
- Right ascension. RA from Marcote et al. (2020)
- Declination. Dec from Marcote et al. (2020)
- Upper transit exposure. No error on exposure due to precise position. See Section 2.2.
Position
ra- 29.503± 0.000degrees
dec- 65.717± 0.000degrees
gl- 129.71degrees
gb- 3.73degrees
Detection and dispersion
bonsai_snr- 11.9
snr_fitb- 43.4
bonsai_dm- 346.1pc cm⁻³
dm_fitb- 348.7128± 0.00420pc cm⁻³
dm_exc_ne2001- 149.8pc cm⁻³
dm_exc_ymw16- 23.9pc cm⁻³
Arrival time
mjd_400Differs between sub-bursts.- 58622.7433523744± 3.10 × 10⁻⁹MJD
mjd_infDiffers between sub-bursts.- 58622.7432478078± 3.40 × 10⁻⁹MJD
Burst shape
bc_width- 0.00885s
width_fitbDiffers between sub-bursts.- 0.001280± 0.0001100s
scat_time- 0.000360± 0.0000470s
Flux and spectrum
flux- 1.18± 0.46Jy
fluence- 3.90± 1.10Jy ms
peak_freqDiffers between sub-bursts.- 480.6MHz
low_freqDiffers between sub-bursts.- 433.4MHz
high_freqDiffers between sub-bursts.- 532.9MHz
sp_idxDiffers between sub-bursts.- 78.90± 7.90
sp_runDiffers between sub-bursts.- -215.00± 21.00
Exposure and fluence thresholds
exp_up- 46.06± 0.00hour
exp_low- —
low_ft_68- 0.0Jy ms
up_ft_68- 6.8Jy ms
low_ft_95- 0.0Jy ms
up_ft_95- 26.1Jy ms
Fit quality
chi_sq- 348292.269
dof- 347156
flag_frac- 0.442