FRB 20190208A
A burst from FRB20190208A
- Previous name
- 190208.J1855+46
- Repeater
- FRB20190208A
- Event ID
- 29889091
- Arrival, 400 MHz
- 2019-02-08 17:41:50.693 UTC
- Right ascension
- 283.660°
- Declination
- 46.963°
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 | 58522.7373921285 | 58522.73739222508 | 58522.73739228314 | 58522.73739238136 |
| Arrival time, infinite frequencyMJD | 58522.73721821875 | 58522.73721831532 | 58522.73721837338 | 58522.7372184716 |
| Width (fitburst)s | 0.001422 | 0.000793 | 0.000991 | 0.006410 |
| Peak frequencyMHz | 604.6 | 564.5 | 538.2 | 465.7 |
| Lowest frequencyMHz | 511.7 | 507.1 | 473.2 | 400.2 |
| Highest frequencyMHz | 714.2 | 628.5 | 612.2 | 545.9 |
| Spectral index | 68.35 | 137.44 | 82.20 | 27.65 |
| Spectral running | -82.84 | -199.74 | -138.72 | -91.16 |
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Notes
- This event was included in Catalog 1.
- The pulse emission region was extended during fluence estimation.
Position
ra- 283.660± 0.208degrees
dec- 46.963± 0.211degrees
gl- 76.75degrees
gb- 18.95degrees
Detection and dispersion
bonsai_snr- 12.2
snr_fitb- 31.2
bonsai_dm- 579.1pc cm⁻³
dm_fitb- 579.9609± 0.03867pc cm⁻³
dm_exc_ne2001- 508.2pc cm⁻³
dm_exc_ymw16- 514.2pc cm⁻³
Arrival time
mjd_400Differs between sub-bursts.- 58522.73739228314± 5.14 × 10⁻⁹MJD
mjd_infDiffers between sub-bursts.- 58522.73721837338± 1.27 × 10⁻⁸MJD
Burst shape
bc_width- 0.02851s
width_fitbDiffers between sub-bursts.- 0.000991± 0.0000983s
scat_time- 0.000000s
Flux and spectrum
flux- 0.55± 0.41Jy
fluence- 3.84± 1.19Jy ms
peak_freqDiffers between sub-bursts.- 538.2MHz
low_freqDiffers between sub-bursts.- 473.2MHz
high_freqDiffers between sub-bursts.- 612.2MHz
sp_idxDiffers between sub-bursts.- 82.20± 12.44
sp_runDiffers between sub-bursts.- -138.72± 20.10
Exposure and fluence thresholds
exp_up- 110.60± 64.30hour
exp_low- 0.00± 0.00hour
low_ft_68- 0.0Jy ms
up_ft_68- 2.2Jy ms
low_ft_95- 0.0Jy ms
up_ft_95- 4.8Jy ms
Fit quality
chi_sq- 1944319.552
dof- 1945275
flag_frac- 0.267