In three consecutive articles published in recent years, quite different estimates were made for the Lyapunov time of comet 1/P Halley, whose orbit is known to have high precision. In this work, we examined the Lyapunov time of the comet 1/P Halley using the MEGNO method and compared our results with previous studies. To investigate the effects of numerical overflows on the results that may have occurred during the calculations, we conducted tests with and without the renormalization procedure. We used various renormalization intervals to see their possible effects on the results and to avoid improper ones. We reached the maximum Lyapunov exponents at renormalization times for 2250 yr, 2265 yr, and 3000 yr. In both cases where renormalization is used and not used, the Lyapunov time is calculated as 119 yr and 190 yr, respectively. Besides, we performed orbital integrations for ∓ 10 kyr for comet 1/P Halley with the clone orbits produced by the MCCM method and compared the standard errors of the means of the orbital parameters with the Lyapunov times. We conclude that calculated different Lyapunov times correspond to different levels of the standard errors of the means.
Birincil Dil | İngilizce |
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Konular | Klasik Fizik (Diğer) |
Bölüm | Natural Sciences |
Yazarlar | |
Yayımlanma Tarihi | 30 Mart 2022 |
Gönderilme Tarihi | 6 Temmuz 2021 |
Kabul Tarihi | 28 Aralık 2021 |
Yayımlandığı Sayı | Yıl 2022Cilt: 43 Sayı: 1 |