FRB 20190519B
A burst from FRB20180916B
- Repeater
- FRB20180916B
- Event ID
- 39278375
- Arrival, 400 MHz
- 2019-05-19 18:09:01.511 UTC
- Right ascension
- 29.333°
- Declination
- 65.734°
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 | 58622.75626740045 | 58622.756267491204 | 58622.75626760808 | 58622.75626768624 |
| Arrival time, infinite frequencyMJD | 58622.75616260516 | 58622.756162695914 | 58622.75616281279 | 58622.75616289096 |
| Width (fitburst)s | 0.001575 | 0.003277 | 0.004280 | 0.002129 |
| Peak frequencyMHz | 666.3 | 541.0 | 514.4 | 472.3 |
| Lowest frequencyMHz | 557.9 | 402.4 | 444.9 | 409.9 |
| Highest frequencyMHz | 795.9 | 727.5 | 594.9 | 544.2 |
| Spectral index | 74.36 | 15.83 | 54.79 | 38.01 |
| Spectral running | -72.92 | -26.25 | -109.08 | -114.68 |
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Notes
- This event was included in Catalog 1.
- The pulse emission region was extended during fluence estimation.
Position
ra- 29.333± 0.180degrees
dec- 65.734± 0.186degrees
gl- 129.64degrees
gb- 3.72degrees
Detection and dispersion
bonsai_snr- 21.7
snr_fitb- 43.7
bonsai_dm- 349.4pc cm⁻³
dm_fitb- 349.4753± 0.05190pc cm⁻³
dm_exc_ne2001- 150.7pc cm⁻³
dm_exc_ymw16- 26.2pc cm⁻³
Arrival time
mjd_400Differs between sub-bursts.- 58622.756267491204± 9.47 × 10⁻⁹MJD
mjd_infDiffers between sub-bursts.- 58622.756162695914± 1.82 × 10⁻⁸MJD
Burst shape
bc_width- 0.02949s
width_fitbDiffers between sub-bursts.- 0.003277± 0.0003965s
scat_time- 0.000000s
Flux and spectrum
flux- 0.91± 0.44Jy
fluence- 14.27± 4.49Jy ms
peak_freqDiffers between sub-bursts.- 541.0MHz
low_freqDiffers between sub-bursts.- 402.4MHz
high_freqDiffers between sub-bursts.- 727.5MHz
sp_idxDiffers between sub-bursts.- 15.83± 3.17
sp_runDiffers between sub-bursts.- -26.25± 4.74
Exposure and fluence thresholds
exp_up- 208.24± 97.36hour
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- 1973036.222
dof- 1974921
flag_frac- 0.256