TIDAL CHANGES IN THE ROTATIONAL STATE OF ASTEROIDS ASEVOLUTION FACTOR OF THE MAGNITUDE OF THE YARKOVSKY EFFECT
Section: CELESTIAL MECHANICS AND ASTROMETRY
Authors:
1.
Pulkovo Observatory
2.
Pulkovo Observatory
3.
Pulkovo Observatory
4.
Central Astronomical Observatory of the Russian Academy of Sciences at Pulkovo
Saint-Petersburg State University
Saint-Petersburg State University
Type:
Сonference article
Pages:
from 807
to 810
Published:
27.12.2024
Subject area:
UDC 52
UDC 53
UDC 520
UDC 521
UDC 523
UDC 524
UDC 52-1
UDC 52-6
CSCSTI 41.00
CSCSTI 29.35
CSCSTI 29.31
CSCSTI 29.33
CSCSTI 29.27
CSCSTI 29.05
Russian Classification of Professions by Education 03.06.01
Russian Classification of Professions by Education 03.05.01
Russian Classification of Professions by Education 03.04.03
Russian Library and Bibliographic Classification 2
Russian Library and Bibliographic Classification 223
Russian Trade and Bibliographic Classification 614
Russian Trade and Bibliographic Classification 6135
BISAC SCI004000 Astronomy
BISAC SCI005000 Physics / Astrophysics
UDC 53
UDC 520
UDC 521
UDC 523
UDC 524
UDC 52-1
UDC 52-6
CSCSTI 41.00
CSCSTI 29.35
CSCSTI 29.31
CSCSTI 29.33
CSCSTI 29.27
CSCSTI 29.05
Russian Classification of Professions by Education 03.06.01
Russian Classification of Professions by Education 03.05.01
Russian Classification of Professions by Education 03.04.03
Russian Library and Bibliographic Classification 2
Russian Library and Bibliographic Classification 223
Russian Trade and Bibliographic Classification 614
Russian Trade and Bibliographic Classification 6135
BISAC SCI004000 Astronomy
BISAC SCI005000 Physics / Astrophysics
Language:
English
Keywords:
minor planets, asteroids: general
Funding:
The study was funded by a grant Russian Science Foundation No 23-22-00306, https://rscf.ru/project/23-22-00306/.
Abstract (English):
We examined possible tidal-induced leaps in the rotational state parameters of the asteroids during their planet approaches. These dramatic changes in the rotational period and obliquity lead to significant changes in orbital dynamics due to the corresponding Yarkovsky acceleration $A_2$ leap. Our numerical simulations of asteroid rotational parameters evolution due to their planet encounters support the conclusion that significant $A_2$ changes can happen when planetocentric distance is less than ten planetary radii. We have found nine asteroids with anomalous $A_2$ values. However, there is no exact evidence that these$A_2$ discrepancies can be explained by tidal effects only.
We examined possible tidal-induced leaps in the rotational state parameters of the asteroids during their planet approaches. These dramatic changes in the rotational period and obliquity lead to significant changes in orbital dynamics due to the corresponding Yarkovsky acceleration $A_2$ leap. Our numerical simulations of asteroid rotational parameters evolution due to their planet encounters support the conclusion that significant $A_2$ changes can happen when planetocentric distance is less than ten planetary radii. We have found nine asteroids with anomalous $A_2$ values. However, there is no exact evidence that these$A_2$ discrepancies can be explained by tidal effects only.
Keywords:
minor planets, asteroids: general
minor planets, asteroids: general
1. Chapman C., 1977, IAU Colloquium, 39, p. 265
2. Lobanova K.S. and Melnikov A.V., 2024, Solar System Research, 58, 2, p. 208
3. Marsden B.G., Sekanina Z., and Yeomans D.K., 1973, Astronomical Journal, 78, p. 211
4. Pérez-Hernández J.A., Jorge A., and Benet L., 2022, Comm. Earth & Environ., 3, 1, id.10
5. Pravec P., Scheirich P., Ďurech J., et al., 2014, Icarus, 233, p. 48
6. Vokrouhlicky D., Milani A., and Chesley S.R., 2000, Icarus, 148, 1, p. 118
7. Yarkovsky I.O., 1901, The density of the light ether and the resistance it provides to movement, Bryansk: Yudin’s typography
