FRB 20230403A
A burst from FRB20220529A
- Repeater
- FRB20220529A
- Event ID
- 280718945
- Arrival, 400 MHz
- 2023-04-03 20:27:04.906 UTC
- Right ascension
- 19.207°
- Declination
- 20.633°
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 | 60037.852139861854 | 60037.85213990818 | 60037.85214006601 | 60037.85214011884 |
| Arrival time, infinite frequencyMJD | 60037.85206624186 | 60037.85206628818 | 60037.85206644601 | 60037.85206649884 |
| Width (fitburst)s | 0.000771 | 0.000833 | 0.000602 | 0.000922 |
| Peak frequencyMHz | 611.7 | 595.1 | 509.7 | 489.7 |
| Lowest frequencyMHz | 556.4 | 532.7 | 436.1 | 413.5 |
| Highest frequencyMHz | 672.6 | 664.8 | 595.8 | 580.0 |
| Spectral index | 217.01 | 148.99 | 45.78 | 32.47 |
| Spectral running | -255.72 | -187.77 | -94.63 | -80.41 |
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Notes
- The pulse emission region was extended during fluence estimation.
Position
ra- 19.207± 0.173degrees
dec- 20.633± 0.074degrees
gl- 130.92degrees
gb- -41.84degrees
Detection and dispersion
bonsai_snr- 27.4
snr_fitb- 85.2
bonsai_dm- 245.5pc cm⁻³
dm_fitb- 245.5108± 0.00621pc cm⁻³
dm_exc_ne2001- 205.4pc cm⁻³
dm_exc_ymw16- 214.5pc cm⁻³
Arrival time
mjd_400Differs between sub-bursts.- 60037.85214011884± 7.59 × 10⁻¹⁰MJD
mjd_infDiffers between sub-bursts.- 60037.85206649884± 2.01 × 10⁻⁹MJD
Burst shape
bc_width- 0.00197s
width_fitbDiffers between sub-bursts.- 0.000922± 0.0000441s
scat_time- 0.000000s
Flux and spectrum
flux- 2.91± 1.09Jy
fluence- 16.52± 5.64Jy ms
peak_freqDiffers between sub-bursts.- 489.7MHz
low_freqDiffers between sub-bursts.- 413.5MHz
high_freqDiffers between sub-bursts.- 580.0MHz
sp_idxDiffers between sub-bursts.- 32.47± 2.77
sp_runDiffers between sub-bursts.- -80.41± 6.53
Exposure and fluence thresholds
exp_up- 90.16± 40.54hour
exp_low- 0.00± 0.00hour
low_ft_68- 0.0Jy ms
up_ft_68- 3.7Jy ms
low_ft_95- 0.0Jy ms
up_ft_95- 7.8Jy ms
Fit quality
chi_sq- 1837428.036
dof- 1844673
flag_frac- 0.305