FRB 20230510B
A burst from FRB20220505A
- Repeater
- FRB20220505A
- Event ID
- 288976462
- Arrival, 400 MHz
- 2023-05-10 06:55:57.938 UTC
- Right ascension
- 30.310°
- Declination
- 74.931°
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 | 60074.288865018825 | 60074.28886505681 | 60074.28886509937 | 60074.28886524438 |
| Arrival time, infinite frequencyMJD | 60074.288683331135 | 60074.28868336912 | 60074.28868341168 | 60074.28868355669 |
| Width (fitburst)s | 0.000716 | 0.000578 | 0.004018 | 0.002669 |
| Peak frequencyMHz | 584.7 | 567.8 | 541.5 | 482.2 |
| Lowest frequencyMHz | 538.3 | 505.5 | 486.3 | 424.4 |
| Highest frequencyMHz | 635.1 | 637.7 | 602.8 | 547.8 |
| Spectral index | 255.51 | 119.24 | 120.73 | 52.64 |
| Spectral running | -336.90 | -170.46 | -199.68 | -141.25 |
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Notes
- The pulse emission region was extended during fluence estimation.
Position
ra- 30.310± 0.130degrees
dec- 74.931± 0.291degrees
gl- 127.52degrees
gb- 12.68degrees
Detection and dispersion
bonsai_snr- 31.2
snr_fitb- 102.6
bonsai_dm- 607.4pc cm⁻³
dm_fitb- 605.8991± 0.00813pc cm⁻³
dm_exc_ne2001- 494.9pc cm⁻³
dm_exc_ymw16- 452.8pc cm⁻³
Arrival time
mjd_400Differs between sub-bursts.- 60074.288865018825± 1.43 × 10⁻⁹MJD
mjd_infDiffers between sub-bursts.- 60074.288683331135± 2.83 × 10⁻⁹MJD
Burst shape
bc_width- 0.00197s
width_fitbDiffers between sub-bursts.- 0.000716± 0.0000620s
scat_time- 0.000000s
Flux and spectrum
flux- 3.47± 0.68Jy
fluence- 18.48± 3.20Jy ms
peak_freqDiffers between sub-bursts.- 584.7MHz
low_freqDiffers between sub-bursts.- 538.3MHz
high_freqDiffers between sub-bursts.- 635.1MHz
sp_idxDiffers between sub-bursts.- 255.51± 56.95
sp_runDiffers between sub-bursts.- -336.90± 74.12
Exposure and fluence thresholds
exp_up- 276.05± 168.46hour
exp_low- 229.16± 110.92hour
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- 1407615.979
dof- 1418127
flag_frac- 0.466