FRB 20210501A
One-off burst
- Event ID
- 169852954
- Arrival, 400 MHz
- 2021-05-01 20:29:23.547 UTC
- Right ascension
- 44.941°
- Declination
- 78.184°
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 | 59335.85374469681 | 59335.85374475952 |
| Arrival time, infinite frequencyMJD | 59335.85367480522 | 59335.85367486793 |
| Width (fitburst)s | 0.000130 | 0.000314 |
| Peak frequencyMHz | 414.6 | 400.2 |
| Highest frequencyMHz | 525.4 | 730.1 |
| Spectral index | 2.90 | -2.19 |
| Spectral running | -41.06 | -2.73 |
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Notes
- The pulse emission region was extended during fluence estimation.
Position
ra- 44.941± 0.138degrees
dec- 78.184± 0.025degrees
gl- 129.46degrees
gb- 16.97degrees
Detection and dispersion
bonsai_snr- 45.0
snr_fitb- 67.7
bonsai_dm- 232.5pc cm⁻³
dm_fitb- 233.0772± 0.00194pc cm⁻³
dm_exc_ne2001- 147.7pc cm⁻³
dm_exc_ymw16- 129.2pc cm⁻³
Arrival time
mjd_400Differs between sub-bursts.- 59335.85374475952± 2.48 × 10⁻¹⁰MJD
mjd_infDiffers between sub-bursts.- 59335.85367486793± 6.32 × 10⁻¹⁰MJD
Burst shape
bc_width- 0.00197s
width_fitbDiffers between sub-bursts.- 0.000314± 0.0000089s
scat_time- 0.001380± 0.0000460s
Flux and spectrum
flux- 4.24± 1.20Jy
fluence- 11.17± 3.08Jy ms
peak_freqDiffers between sub-bursts.- 400.2MHz
low_freq- 400.2MHz
high_freqDiffers between sub-bursts.- 730.1MHz
sp_idxDiffers between sub-bursts.- -2.19± 0.32
sp_runDiffers between sub-bursts.- -2.73± 0.65
Exposure and fluence thresholds
exp_up- 82.17± 139.39hour
exp_low- 503.93± 77.40hour
low_ft_68- 6.0Jy ms
up_ft_68- 1.6Jy ms
low_ft_95- 10.6Jy ms
up_ft_95- 2.8Jy ms
Fit quality
chi_sq- 1841079.964
dof- 1845654
flag_frac- 0.305