FRB 20181019A
A burst from FRB20180916B
- Repeater
- FRB20180916B
- Arrival, 400 MHz
- 2018-10-19 08:13:22.735 UTC
- Right ascension
- 29.503°
- Declination
- 65.717°
How the sub-bursts differ
This burst has 2 sub-bursts. These 7 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 | 58410.342624244 | 58410.342624984 |
| Arrival time, infinite frequencyMJD | 58410.342519658 | 58410.342520397 |
| Width (fitburst)s | 0.003140 | 0.002460 |
| Peak frequencyMHz | 685.7 | 630.1 |
| Lowest frequencyMHz | 555.3 | 491.9 |
| Spectral index | 55.70 | 34.00 |
| Spectral running | -51.70 | -38.00 |
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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- 16.2
snr_fitb- 27.8
bonsai_dm- 346.1pc cm⁻³
dm_fitb- 348.7780± 0.06900pc cm⁻³
dm_exc_ne2001- 149.8pc cm⁻³
dm_exc_ymw16- 23.9pc cm⁻³
Arrival time
mjd_400Differs between sub-bursts.- 58410.342624244± 1.50 × 10⁻⁸MJD
mjd_infDiffers between sub-bursts.- 58410.342519658± 2.60 × 10⁻⁸MJD
Burst shape
bc_width- 0.00885s
width_fitbDiffers between sub-bursts.- 0.003140± 0.0004000s
scat_time- <0.0036s
Flux and spectrum
flux- 0.81± 0.44Jy
fluence- 10.40± 3.10Jy ms
peak_freqDiffers between sub-bursts.- 685.7MHz
low_freqDiffers between sub-bursts.- 555.3MHz
high_freq- 800.2MHz
sp_idxDiffers between sub-bursts.- 55.70± 6.50
sp_runDiffers between sub-bursts.- -51.70± 6.00
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- 1235524.394
dof- 1234229
flag_frac- 0.434