FRB 20200122B
A burst from FRB20181030A
- Repeater
- FRB20181030A
- Event ID
- 69848452
- Arrival, 400 MHz
- 2020-01-22 10:27:00.438 UTC
- Right ascension
- 158.407°
- Declination
- 73.797°
How the sub-bursts differ
This burst has 2 sub-bursts. These 6 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 | 58870.43542173781 | 58870.43542211872 |
| Arrival time, infinite frequencyMJD | 58870.4353907118 | 58870.4353910927 |
| Width (fitburst)s | 0.000123 | 0.000005 |
| Highest frequencyMHz | 559.9 | 491.6 |
| Spectral index | -1.52 | -6.84 |
| Spectral running | -15.90 | -21.11 |
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Notes
- The pulse emission region was extended during fluence estimation.
Position
ra- 158.407± 0.034degrees
dec- 73.797± 0.196degrees
gl- 134.82degrees
gb- 39.99degrees
Detection and dispersion
bonsai_snr- 17.3
snr_fitb- 32.4
bonsai_dm- 101.9pc cm⁻³
dm_fitb- 103.4667± 0.00002pc cm⁻³
dm_exc_ne2001- 62.4pc cm⁻³
dm_exc_ymw16- 70.3pc cm⁻³
Arrival time
mjd_400Differs between sub-bursts.- 58870.43542173781± 2.15 × 10⁻¹⁰MJD
mjd_infDiffers between sub-bursts.- 58870.4353907118± 2.15 × 10⁻¹⁰MJD
Burst shape
bc_width- 0.00197s
width_fitbDiffers between sub-bursts.- 0.000123± 0.0000158s
scat_time- 0.001358± 0.0001601s
Flux and spectrum
flux- 0.76± 0.41Jy
fluence- 4.40± 2.04Jy ms
peak_freq- 400.2MHz
low_freq- 400.2MHz
high_freqDiffers between sub-bursts.- 559.9MHz
sp_idxDiffers between sub-bursts.- -1.52± 1.48
sp_runDiffers between sub-bursts.- -15.90± 4.74
Exposure and fluence thresholds
exp_up- 271.89± 142.82hour
exp_low- 291.98± 32.40hour
low_ft_68- 2.4Jy ms
up_ft_68- 0.3Jy ms
low_ft_95- 6.0Jy ms
up_ft_95- 0.9Jy ms
Fit quality
chi_sq- 2207332.998
dof- 2208372
flag_frac- 0.168