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Título del libro: Proceedings Of The 13th Scientific Meeting Of The Spanish Astronomical Society - Highlights Of Spanish Astrophysics X, Sea 2018
Título del capítulo: On the galactic spiral arms nature as revealed by the kinematics of the stellar component

Autores UNAM:
JOSE OCTAVIO VALENZUELA TIJERINO; HECTOR MANUEL VELAZQUEZ; BARBARA SELEN PICHARDO SILVA;
Autores externos:

Idioma:

Año de publicación:
2020
Resumen:

N-body simulations conducted for kinematic analysis of stellar disk component -high number of disk particles, small time step and few parsecs spatial resolution - reveal two different behaviors for the spiral arm angular velocity. Whereas subdominant disk cases present transient spiral arm features corotating with particles, Milky Way like galaxies with higher disk/halo ratio develop a bar and transient spiral compatible with a pattern speed constant in radius. Both cases significantly depart from the TWA steady spiral arm density wave theory. Such results may have potential to be applied to arqueological studies of the Milky Way disks and high implication to the secular evolution of galaxies. © 2020 Proceedings of the 10th Scientific Meeting of the Spanish Astronomical Society - Highlights of Spanish Astrophysics VII, SEA 2012. All rights reserved.


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