FRB 20190519B
A burst from FRB20180916B
- Repeater
- FRB20180916B
- Arrival, 400 MHz
- 2019-05-19 18:09:01.516 UTC
- Right ascension
- 29.503°
- Declination
- 65.717°
How the sub-bursts differ
This burst has 4 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 | Sub-burst 3 | Sub-burst 4 |
|---|---|---|---|---|
| Arrival time, 400 MHzMJD | 58622.7562673606 | 58622.7562674544 | 58622.756267542 | 58622.7562676669 |
| Arrival time, infinite frequencyMJD | 58622.756162624 | 58622.756162718 | 58622.756162805 | 58622.75616293 |
| Width (fitburst)s | 0.002030 | 0.001510 | 0.006060 | 0.002190 |
| Peak frequencyMHz | 662.5 | 575.6 | 514.3 | 473.1 |
| Lowest frequencyMHz | 537.9 | 442.7 | 435.3 | 410.2 |
| Highest frequencyMHz | 800.2 | 748.5 | 607.7 | 545.5 |
| Spectral index | 53.50 | 24.30 | 41.50 | 37.90 |
| Spectral running | -53.00 | -33.00 | -83.00 | -113.00 |
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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- 21.7
snr_fitb- 44.8
bonsai_dm- 349.4pc cm⁻³
dm_fitb- 349.2800± 0.03800pc cm⁻³
dm_exc_ne2001- 150.3pc cm⁻³
dm_exc_ymw16- 24.4pc cm⁻³
Arrival time
mjd_400Differs between sub-bursts.- 58622.756267542± 9.70 × 10⁻⁹MJD
mjd_infDiffers between sub-bursts.- 58622.756162805± 1.50 × 10⁻⁸MJD
Burst shape
bc_width- 0.03244s
width_fitbDiffers between sub-bursts.- 0.006060± 0.0008300s
scat_time- <0.0022s
Flux and spectrum
flux- 0.97± 0.39Jy
fluence- 12.40± 4.00Jy ms
peak_freqDiffers between sub-bursts.- 514.3MHz
low_freqDiffers between sub-bursts.- 435.3MHz
high_freqDiffers between sub-bursts.- 607.7MHz
sp_idxDiffers between sub-bursts.- 41.50± 6.70
sp_runDiffers between sub-bursts.- -83.00± 13.00
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- 755972.269
dof- 749035
flag_frac- 0.398