| Full text | |
| Author(s): |
Antonio Carita, Lucas
[1, 2, 3]
;
Rodrigues, Irapuan
[1]
;
Puerari, I
[2]
;
Aranha Schiavo, Luiz Eduardo Camargo
[4, 1]
Total Authors: 4
|
| Affiliation: | [1] Univ Vale Paraiba UNIVAP, Sao Jose Dos Campos, SP - Brazil
[2] INAOE, Puebla - Mexico
[3] Inst Fed Educ Ciencia & Tecnol Sao Paulo IFSP, Sao Jose Dos Campos, SP - Brazil
[4] Univ Estadual Campinas, UNICAMP, Campinas, SP - Brazil
Total Affiliations: 4
|
| Document type: | Journal article |
| Source: | REVISTA MEXICANA DE ASTRONOMIA Y ASTROFISICA; v. 55, n. 2, p. 321-335, OCT 2019. |
| Web of Science Citations: | 0 |
| Abstract | |
ABSTRACT This paper aims to verify the influence of the bar, its pattern speed (Ω b ) and its rate of growth on the stability of the orbits in gravitational potentials. We studied the nature of the orbits in potentials representing galaxies with growing bars, where a linear growth was assumed. In order to study the stability of the orbits we applied SALI. We studied six models in which the bar dimensions were fixed, but we varied their pattern speed and time of bar growth. We found that when the bar growth is faster, more chaos is generated and we also noted that the higher the Ω b , the greater its influence on the system dynamics. The initial positions of the orbits that became chaotic were located in a well-defined ring-like region, confined between the ILR and CR resonances. There was also an indication that the retrograde orbits, although much scarcer, are more conductive to chaos when they do exist. (AU) | |
| FAPESP's process: | 13/17247-9 - Dynamics of isolated and interacting disk galaxies via N-body and SPH simulations |
| Grantee: | Irapuan Rodrigues de Oliveira Filho |
| Support Opportunities: | Regular Research Grants |
| FAPESP's process: | 11/13250-0 - Minimum model of metallic nanoparticle surface and cluster for DNA nanosensors optimization |
| Grantee: | Priscila Pereira Fávero |
| Support Opportunities: | Regular Research Grants |