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Azimuthal patterns in planetesimal circumstellar disks. / Демидова, Татьяна Валерьевна; Шевченко, Иван Иванович.
в: Astronomy Letters, Том 49, № 6, 01.06.2023, стр. 345–357.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Azimuthal patterns in planetesimal circumstellar disks
AU - Демидова, Татьяна Валерьевна
AU - Шевченко, Иван Иванович
PY - 2023/6/1
Y1 - 2023/6/1
N2 - Abstract: Ways of formation of azimuthal resonant patterns in circumstellar planetesimal disks with planets are considered. Our analytical estimates and massive numerical experiments show that the disk particles that initially reside in zones of low-order mean-motion resonances with the planet may eventually concentrate into potentially observable azimuthal patterns. The structuring process is rapid, usually taking \sim 100 orbital periods of the planet. It is found that the relative number of particles that retain their resonant position increases with decreasing the mass parameter \mu (the ratio of masses of the perturbing planet and the parent star), but a significant fraction of the particle population is always removed from the disk due to accretion of the particles onto the star and planet, as well as due to their transition to highly elongated and hyperbolic orbits. Expected radio images of azimuthally structured disks are constructed. In the considered models, azimuthal patterns associated with the 2:1 and 3:2 resonances are most clearly manifested; observational manifestations of the 1:2 and 2:3 resonances are also possible.
AB - Abstract: Ways of formation of azimuthal resonant patterns in circumstellar planetesimal disks with planets are considered. Our analytical estimates and massive numerical experiments show that the disk particles that initially reside in zones of low-order mean-motion resonances with the planet may eventually concentrate into potentially observable azimuthal patterns. The structuring process is rapid, usually taking \sim 100 orbital periods of the planet. It is found that the relative number of particles that retain their resonant position increases with decreasing the mass parameter \mu (the ratio of masses of the perturbing planet and the parent star), but a significant fraction of the particle population is always removed from the disk due to accretion of the particles onto the star and planet, as well as due to their transition to highly elongated and hyperbolic orbits. Expected radio images of azimuthally structured disks are constructed. In the considered models, azimuthal patterns associated with the 2:1 and 3:2 resonances are most clearly manifested; observational manifestations of the 1:2 and 2:3 resonances are also possible.
KW - debris disks
KW - dynamical chaos
KW - mean-motion resonances
KW - planetesimal disks
KW - planetesimals
UR - https://link.springer.com/article/10.1134/S1063773723060026
UR - https://www.mendeley.com/catalogue/92337fef-e50a-3bff-98c2-05545108e162/
U2 - 10.1134/S1063773723060026
DO - 10.1134/S1063773723060026
M3 - Article
VL - 49
SP - 345
EP - 357
JO - Astronomy Letters
JF - Astronomy Letters
SN - 1063-7737
IS - 6
ER -
ID: 115095218