FRB 20230511E
A burst from FRB20220505A
- Repeater
- FRB20220505A
- Event ID
- 289479306
- Arrival, 400 MHz
- 2023-05-11 18:36:30.220 UTC
- Right ascension
- 29.669°
- Declination
- 75.024°
How the sub-bursts differ
This burst has 4 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 | Sub-burst 4 |
|---|---|---|---|---|
| Arrival time, 400 MHzMJD | 60075.775349404765 | 60075.77534947039 | 60075.775349605836 | 60075.77534977264 |
| Arrival time, infinite frequencyMJD | 60075.77516770306 | 60075.77516776868 | 60075.77516790413 | 60075.77516807093 |
| Width (fitburst)s | 0.001765 | 0.004730 | 0.000846 | 0.008407 |
| Peak frequencyMHz | 525.7 | 490.2 | 455.5 | 400.2 |
| Lowest frequencyMHz | 488.1 | 433.4 | 408.7 | 400.2 |
| Highest frequencyMHz | 566.3 | 554.5 | 507.7 | 478.5 |
| Spectral index | 227.58 | 61.50 | 50.60 | -2.56 |
| Spectral running | -416.99 | -151.54 | -195.54 | -57.79 |
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Notes
- The pulse emission region was extended during fluence estimation.
Position
ra- 29.669± 0.079degrees
dec- 75.024± 0.024degrees
gl- 127.33degrees
gb- 12.73degrees
Detection and dispersion
bonsai_snr- 38.8
snr_fitb- 96.5
bonsai_dm- 607.4pc cm⁻³
dm_fitb- 605.9458± 0.01914pc cm⁻³
dm_exc_ne2001- 495.8pc cm⁻³
dm_exc_ymw16- 454.6pc cm⁻³
Arrival time
mjd_400Differs between sub-bursts.- 60075.77534977264± 8.34 × 10⁻⁹MJD
mjd_infDiffers between sub-bursts.- 60075.77516807093± 1.01 × 10⁻⁸MJD
Burst shape
bc_width- 0.02556s
width_fitbDiffers between sub-bursts.- 0.008407± 0.0007082s
scat_time- 0.003883± 0.0001926s
Flux and spectrum
flux- 2.47± 0.55Jy
fluence- 22.17± 2.99Jy ms
peak_freqDiffers between sub-bursts.- 400.2MHz
low_freqDiffers between sub-bursts.- 400.2MHz
high_freqDiffers between sub-bursts.- 478.5MHz
sp_idxDiffers between sub-bursts.- -2.56± 3.34
sp_runDiffers between sub-bursts.- -57.79± 20.54
Exposure and fluence thresholds
exp_up- 365.95± 123.70hour
exp_low- 315.08± 16.33hour
low_ft_68- 16.6Jy ms
up_ft_68- 2.9Jy ms
low_ft_95- 33.7Jy ms
up_ft_95- 5.8Jy ms
Fit quality
chi_sq- 1742064.220
dof- 1751360
flag_frac- 0.340