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of 41
pro vyhledávání: '"Muzzio, Juan Carlos"'
We show that the Lyapunov exponents of a periodic orbit can be easily obtained from the eigenvalues of the monodromy matrix. It turns out that the Lyapunov exponents of simply stable periodic orbits are all zero, simply unstable periodic orbits have
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______1329::235090e2f8097bf3a0a93dd195932cb0
http://sedici.unlp.edu.ar/handle/10915/125462
http://sedici.unlp.edu.ar/handle/10915/125462
Publikováno v:
CONICET Digital (CONICET)
Consejo Nacional de Investigaciones Científicas y Técnicas
instacron:CONICET
SEDICI (UNLP)
Universidad Nacional de La Plata
instacron:UNLP
Consejo Nacional de Investigaciones Científicas y Técnicas
instacron:CONICET
SEDICI (UNLP)
Universidad Nacional de La Plata
instacron:UNLP
We used the N-body code of Hernquist & Ostriker to build a dozen cuspy (γ ≃ 1) triaxial models of stellar systems through dissipationless collapses of initially spherical distributions of 106 particles. We chose four sets of initial conditions tha
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::3a905580dd9d67463bc6399337b34c59
https://academic.oup.com/mnras/article/423/2/1955/977019
https://academic.oup.com/mnras/article/423/2/1955/977019
Autor:
Muzzio, Juan Carlos
Publikováno v:
SEDICI (UNLP)
Universidad Nacional de La Plata
instacron:UNLP
CONICET Digital (CONICET)
Consejo Nacional de Investigaciones Científicas y Técnicas
instacron:CONICET
Universidad Nacional de La Plata
instacron:UNLP
CONICET Digital (CONICET)
Consejo Nacional de Investigaciones Científicas y Técnicas
instacron:CONICET
Simulations of stellar systems in volve, first, creating a model and, subsequently, following its evolution through numerical integration of the equations of motion. The models can be generated from theoretical distributions obtained from the Newtoni
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::a3298ecc62408ca29a08aa9f54ac27df
http://www.astroscu.unam.mx/rmaa/RMxAA..41-1/PDF/RMxAA..41-1_jmuzzio.pdf
http://www.astroscu.unam.mx/rmaa/RMxAA..41-1/PDF/RMxAA..41-1_jmuzzio.pdf
Publikováno v:
SEDICI (UNLP)
Universidad Nacional de La Plata
instacron:UNLP
Universidad Nacional de La Plata
instacron:UNLP
In several previous papers we had investigated the orbits of the stars that make up galactic satellites and found that many of those orbits were chaotic. In those investigations we made extensive use of the frequency analysis method of Carpintero and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::578ef0dde902d9c3a087a61abac9cfff
http://sedici.unlp.edu.ar/handle/10915/141462
http://sedici.unlp.edu.ar/handle/10915/141462
The study of the motions of the stars that belong to a galactic satellite (i.e. a globular cluster or a dwarf galaxy orbiting a larger one) has some similarities, as well as significant differences, with that of the restricted three-body problem of c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______3498::73b5b4fea32125885f401438e2766f37
https://link.springer.com/article/10.1023/A:1013327608173
https://link.springer.com/article/10.1023/A:1013327608173
Autor:
Muzzio, Juan Carlos
Publikováno v:
SEDICI (UNLP)
Universidad Nacional de La Plata
instacron:UNLP
Universidad Nacional de La Plata
instacron:UNLP
El origen de la actual Facultad es el Observatorio Astronómico, cuya creación fue anterior a la de la propia Universidad Nacional de La Plata. Los tres aspectos de la actividad universitaria contemplados en nuestro Estatuto, docencia, investigació
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::d57116b92d8bffbda89a7a5ad2d4bf88
http://sedici.unlp.edu.ar/handle/10915/69849
http://sedici.unlp.edu.ar/handle/10915/69849
When a body moves through a medium of smaller particles, it suffers a deceleration due to dynamical friction (Chandrasekhar 1943). Dynamical friction is inversely proportional to the relaxation time, which can be defined as the time needed for the or
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______1329::02d5bea0245e792972d7bb6007f52355
http://sedici.unlp.edu.ar/handle/10915/123080
http://sedici.unlp.edu.ar/handle/10915/123080
Publikováno v:
SEDICI (UNLP)
Universidad Nacional de La Plata
instacron:UNLP
Universidad Nacional de La Plata
instacron:UNLP
We performed simple numerical simulations to investigate the capture of dwarf galaxies by larger ones in the environment of a cluster of galaxies. The number of captures is small compared to the total number of dwarfs, but it is significant because t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::5b66edc1509a660e94a2d232a72f2a49
http://sedici.unlp.edu.ar/handle/10915/145037
http://sedici.unlp.edu.ar/handle/10915/145037
Publikováno v:
SEDICI (UNLP)
Universidad Nacional de La Plata
instacron:UNLP
Universidad Nacional de La Plata
instacron:UNLP
Recent numerical simulations using an N-body code suggest that galaxies may oscillate in a very regular and long lasting way. Here we investigate galactic oscillations using a different approach: the perturbation particle method. Our results confirm
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::036d0dd79ce3f2ffe4a4b6ab462f41e1
http://sedici.unlp.edu.ar/handle/10915/137950
http://sedici.unlp.edu.ar/handle/10915/137950
Las galaxias elípticas gigantes pueden tener una población del orden de miles de cúmulos globulares, tal como M87 en el centro del cúmulo de Virgo, mientras que otras galaxias, como la Vía Láctea, solo poseen unos cientos de ellos. Una posible
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______1329::cf6352a7d4f1781f9b943247e01b65ac
http://sedici.unlp.edu.ar/handle/10915/148458
http://sedici.unlp.edu.ar/handle/10915/148458