On the Lyapunov Time Estimations For Comet 1/P Halley

Murat Kaplan

doi:10.17776/csj.963120

EN

On the Lyapunov Time Estimations For Comet 1/P Halley

Abstract

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.

Keywords

References

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Details

Primary Language

English

Subjects

Classical Physics (Other)

Journal Section

Research Article

Authors

Murat Kaplan ^*
0000-0003-2595-5463
Türkiye

Publication Date

March 30, 2022

Submission Date

July 6, 2021

Acceptance Date

December 28, 2021

Published in Issue

Year 2022 Volume: 43 Number: 1

DOI

https://doi.org/10.17776/csj.963120

IZ

https://izlik.org/JA49DL46GW

Cite

RIS / Bibtex

APA

Kaplan, M. (2022). On the Lyapunov Time Estimations For Comet 1/P Halley. Cumhuriyet Science Journal, 43(1), 116-122. https://doi.org/10.17776/csj.963120

Cited By

Future evolution of 12P and other Halley-type comets in near-polar orbits

Monthly Notices of the Royal Astronomical Society

https://doi.org/10.1093/mnras/staf492

Öz

On the Lyapunov Time Estimations For Comet 1/P Halley

Abstract

Keywords

References

Details

Primary Language

Subjects

Journal Section

Authors

Publication Date

Submission Date

Acceptance Date

Published in Issue

DOI

IZ

Cite

Cited By

Future evolution of 12P and other Halley-type comets in near-polar orbits