FRB 20200420A
A burst from FRB20200420A
- Repeater
- FRB20200420A
- Event ID
- 81358007
- Arrival, 400 MHz
- 2020-04-20 18:35:52.272 UTC
- Right ascension
- 7.381°
- Declination
- 37.489°
How the sub-bursts differ
This burst has 3 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 |
|---|---|---|---|
| Arrival time, 400 MHzMJD | 58959.77491040103 | 58959.77491044867 | 58959.77491055464 |
| Arrival time, infinite frequencyMJD | 58959.77470879554 | 58959.774708843186 | 58959.77470894915 |
| Width (fitburst)s | 0.000631 | 0.001402 | 0.000352 |
| Peak frequencyMHz | 516.5 | 495.7 | 444.0 |
| Lowest frequencyMHz | 472.1 | 441.5 | 400.2 |
| Highest frequencyMHz | 565.1 | 556.5 | 503.8 |
| Spectral index | 145.29 | 73.64 | 29.95 |
| Spectral running | -284.70 | -172.07 | -144.09 |
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Notes
- The pulse emission region was extended during fluence estimation.
Position
ra- 7.381± 0.201degrees
dec- 37.489± 0.199degrees
gl- 118.13degrees
gb- -25.18degrees
Detection and dispersion
bonsai_snr- 17.7
snr_fitb- 35.6
bonsai_dm- 676.1pc cm⁻³
dm_fitb- 672.3217± 0.00582pc cm⁻³
dm_exc_ne2001- 613.9pc cm⁻³
dm_exc_ymw16- 621.9pc cm⁻³
Arrival time
mjd_400Differs between sub-bursts.- 58959.77491055464± 3.39 × 10⁻¹⁰MJD
mjd_infDiffers between sub-bursts.- 58959.77470894915± 1.78 × 10⁻⁹MJD
Burst shape
bc_width- 0.01573s
width_fitbDiffers between sub-bursts.- 0.000352± 0.0000061s
scat_time- 0.000000s
Flux and spectrum
flux- 0.47± 0.16Jy
fluence- 1.67± 0.27Jy ms
peak_freqDiffers between sub-bursts.- 444.0MHz
low_freqDiffers between sub-bursts.- 400.2MHz
high_freqDiffers between sub-bursts.- 503.8MHz
sp_idxDiffers between sub-bursts.- 29.95± 3.89
sp_runDiffers between sub-bursts.- -144.09± 17.29
Exposure and fluence thresholds
exp_up- 78.00± 41.64hour
exp_low- 0.00± 0.00hour
low_ft_68- 0.0Jy ms
up_ft_68- 2.3Jy ms
low_ft_95- 0.0Jy ms
up_ft_95- 5.8Jy ms
Fit quality
chi_sq- 2002513.260
dof- 2003762
flag_frac- 0.245