Table 1
Mean geophysical characteristics of the predicted annual meteor showers.
| tev; Ref. | β | λ ⊙ | α | δ | V g | V h | γ | N s | D lim |
|
|
|||||||||
| Filament F1 – 175 July Pegasids | |||||||||
| 5 | 0.00001 | 111.0 ± 3.1 | 348.5 ± 2.2 | 11.2 ± 0.4 | 64.0 ± 0.2 | 41.6 ± 0.1 | 116 | 49 | 0.08 |
| 0.001 | 108.4 ± 2.3 | 346.7 ± 1.6 | 10.9 ± 0.3 | 64.1 ± 0.2 | 41.5 ± 0.1 | 115 | 19 | 0.06 | |
| 10 | 0.00001 | 114.3 ± 4.0 | 351.4 ± 3.2 | 11.9 ± 0.8 | 63.9 ± 0.3 | 41.6 ± 0.1 | 116 | 943 | 0.15 |
| 0.001 | 111.8 ± 3.5 | 349.4 ± 2.7 | 11.4 ± 0.6 | 64.1 ± 0.3 | 41.6 ± 0.1 | 116 | 456 | 0.13 | |
| 20 | 0.00001 | 117.6 ± 5.6 | 354.3 ± 4.6 | 12.7 ± 1.3 | 63.8 ± 0.4 | 41.5 ± 0.1 | 117 | 778 | 0.20 |
| 0.001 | 115.3 ± 4.8 | 352.4 ± 3.9 | 12.2 ± 1.1 | 64.0 ± 0.3 | 41.6 ± 0.1 | 116 | 443 | 0.19 | |
| 40 | 0.00001 | 115.8 ± 6.6 | 352.9 ± 5.4 | 12.7 ± 1.7 | 63.9 ± 0.4 | 41.5 ± 0.1 | 116 | 450 | 0.21 |
| 0.001 | 114.2 ± 7.5 | 351.8 ± 6.1 | 12.4 ± 1.7 | 64.1 ± 0.4 | 41.5 ± 0.1 | 116 | 307 | 0.29 | |
| 80 | 0.00001 | 111.6 ± 11.0 | 349.1 ± 9.3 | 12.5 ± 3.0 | 63.9 ± 0.5 | 41.5 ± 0.1 | 115 | 1171 | 0.39 |
| 0.001 | 109.3 ± 12.8 | 347.5 ± 10.7 | 12.0 ± 3.3 | 64.1 ± 0.5 | 41.5 ± 0.1 | 115 | 966 | 0.41 | |
| July Pegasids separated from CAMS database in this work | |||||||||
| 110.8 ± 5.5 | 350.0 ± 4.6 | 11.7 ± 1.6 | 64.1 ± 1.1 | 41.0 ± 1.0 | 114 | 81 | 0.17 | ||
| July Pegasids in the IAU MDC list | |||||||||
| Jenniskens (2006) | 107.5 | 340 ± 0.6 | 15 ± 0.2 | 61.3 | 118 | ||||
| Molau & Rendtel (2009) | 108 | 347.2 ± 0.9 | 11.1 ± 0.2 | 68.1 | 114 | 591 | |||
| Ueda (2012) | 110.9 | 349.6 ± 0.71 | 11.3 ± 0.17 | 63.9 | 115 | 63 | |||
| Holman & Jenniskens (2012) | 109 | 348.8 | 11.1 | 64.5 | 114 | ||||
| Jenniskens et al. (2016a) | 108 | 347.2 ± 0.9 | 10.0 ± 0.39 | 64.0 | 115 | 104 | |||
| Southern alpha Pegasids in the IAU MDC list | |||||||||
| Andreić et al. (2013) | 112.0 | 351 | 11.7 | 63.9 | 115 | 93 | |||
| July gamma Pegasids in the IAU MDC list | |||||||||
| Rudawska & Jenniskens (2014) | 120.8 | 358.6 | 14.2 | 62.6 | 116 | 8 | |||
| Kornoš et al. (2014b) | 120.5 | 357.1 | 13.3 | 62.31 | 117 | 12 | |||
|
|
|||||||||
| Filament F2 | |||||||||
| 5 | 0.00001 | 292.9 ± 2.1 | 224.1 ± 1.5 | −30.0 ± 0.5 | 65.2 ± 0.2 | 41.9 ± 0.0 | 63 | 6 | 0.04 |
| 0.0001 | 293.0 ± 1.3 | 224.0 ± 1.0 | −29.9 ± 0.4 | 65.2 ± 0.1 | 41.8 ± 0.0 | 63 | 3 | 0.02 | |
| 0.001 | − | − | − | − | − | − | 0 | − | |
| 10 | 0.00001 | 297.0 ± 4.2 | 228.4 ± 3.7 | −31.5 ± 1.4 | 65.3 ± 0.3 | 42.0 ± 0.1 | 63 | 579 | 0.15 |
| 0.001 | 293.5 ± 3.4 | 224.9 ± 2.8 | −30.2 ± 1.0 | 65.2 ± 0.2 | 42.0 ± 0.1 | 63 | 80 | 0.12 | |
| 20 | 0.00001 | 296.2 ± 6.7 | 228.4 ± 6.0 | −31.5 ± 2.1 | 65.0 ± 0.4 | 42.1 ± 0.2 | 63 | 1364 | 0.29 |
| 0.001 | 295.2 ± 6.9 | 227.3 ± 6.1 | −31.1 ± 2.2 | 65.1 ± 0.4 | 42.1 ± 0.2 | 63 | 537 | 0.23 | |
| 40 | 0.00001 | 297.5 ± 8.9 | 229.6 ± 8.1 | −32.1 ± 2.7 | 65.0 ± 0.4 | 42.1 ± 0.2 | 63 | 745 | 0.27 |
| 0.001 | 301.0 ± 10.1 | 232.9 ± 9.4 | −32.9 ± 3.1 | 65.2 ± 0.5 | 42.1 ± 0.2 | 63 | 235 | 0.34 | |
| 80 | 0.00001 | 304.2 ± 15.9 | 236.4 ± 15.5 | −34.9 ± 4.6 | 64.8 ± 0.5 | 42.2 ± 0.2 | 63 | 1404 | 0.50 |
| 0.001 | 305.7 ± 13.7 | 238.1 ± 13.5 | −34.7 ± 3.7 | 65.0 ± 0.5 | 42.1 ± 0.2 | 63 | 734 | 0.41 | |
| shower separated from CAMS database in this work | |||||||||
| 294.8 ± 7.4 | 227.8 ± 6.8 | −30.2 ± 2.8 | 64.8 ± 1.7 | 42.0 ± 1.5 | 62 | 10 | 0.19 | ||
| shower separated from SonotaCo database in this work | |||||||||
| 291.9 ± 7.5 | 224.4 ± 6.3 | −30.8 ± 2.3 | 64.3 ± 1.3 | 41.8 ± 0.8 | 62 | 5 | 0.15 | ||
Notes. tev – the period following the orbital evolution (the theoretical stream was modeled before this time); β – parameter characterizing the strength of the P-R effect; Ref. – reference to the work, where the parameters of real showers were published (this reference replaces parameters tev and β in the case of a real shower); λ⊙ – solar longitude corresponding to the expected maximum of a shower; α and δ – equatorial coordinates of geocentric radiant; Vg and Vh – geocentric and heliocentric velocity; γ – angular distance of the mean radiant from the Sun at the time corresponding to the λ⊙ of maximum; Ns – the number of particles in the orbits approaching the Earth’s orbit within 0.05 au or the real meteors of a given shower selected from the given database; Dlim – the threshold value of the Southworth-Hawkins D-discriminant used to separate the meteors of the filament or an observed shower. Time tev is given in kilo-years, the angular quantities are given in degrees, and velocities in km s-1.
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