FRB 20181226A
A burst from FRB20180916B
- Repeater
- FRB20180916B
- Arrival, 400 MHz
- 2018-12-26 03:43:30.103 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 | 58478.1552095267 | 58478.1552095701 |
| Arrival time, infinite frequencyMJD | 58478.1551048707 | 58478.1551049141 |
| Width (fitburst)s | 0.000731 | 0.001490 |
| Peak frequencyMHz | 552.8 | 520.4 |
| Lowest frequencyMHz | 482.9 | 459.3 |
| Highest frequencyMHz | 632.7 | 589.6 |
| Spectral index | 81.50 | 77.60 |
| Spectral running | -126.20 | -148.00 |
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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- 16.7
snr_fitb- 69.0
bonsai_dm- 347.8pc cm⁻³
dm_fitb- 349.0107± 0.00140pc cm⁻³
dm_exc_ne2001- 150.1pc cm⁻³
dm_exc_ymw16- 24.2pc cm⁻³
Arrival time
mjd_400Differs between sub-bursts.- 58478.1552095267± 1.50 × 10⁻⁹MJD
mjd_infDiffers between sub-bursts.- 58478.1551048707± 1.60 × 10⁻⁹MJD
Burst shape
bc_width- 0.00983s
width_fitbDiffers between sub-bursts.- 0.000731± 0.0000180s
scat_time- <0.00077s
Flux and spectrum
flux- 1.60± 0.57Jy
fluence- 5.70± 1.40Jy ms
peak_freqDiffers between sub-bursts.- 552.8MHz
low_freqDiffers between sub-bursts.- 482.9MHz
high_freqDiffers between sub-bursts.- 632.7MHz
sp_idxDiffers between sub-bursts.- 81.50± 3.50
sp_runDiffers between sub-bursts.- -126.20± 5.40
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- 439985.477
dof- 434101
flag_frac- 0.303