6 papers
Dynamical evolution and dissolution timescale of young stellar clusters in the Orion star-forming complex
Sergio Sánchez-Sanjuán, Ángeles Pérez-Villegas, Jesús Hernández +1
We present a comprehensive analysis of the Orion star-forming complex (OSFC), combining structural, kinematic, and dynamical information to constrain the present-day state and futu…
Characterizing the velocity anisotropy of the Milky Way's stellar halo
F. O. Barbosa, A. Pérez-Villegas, S. Rossi +6
Modeling the Milky Way stellar halo requires well-determined density and velocity anisotropy profiles. However, it has been challenging to gather a large sample of stars with six-d…
Dynamical heating of newborn stars driven by accretion-induced orbital tightening
Vianey Camacho, Andrea Bonilla-Barroso, Javier Ballesteros-Paredes +2
In previous works, we have shown that stars in the Orion and the Lagoon Nebula Clusters, and simulations of collapsing clouds, exhibit constant velocity dispersion as a function of…
Kinematic study of the Orion Complex: Analysing the young stellar clusters from big and small structures
Sergio Sánchez-Sanjuán, Jesús Hernández, Ángeles Pérez-Villegas +4
In this work, we analysed young stellar clusters with spatial and kinematic coherence in the Orion star-forming complex. For this study, we selected a sample of pre-main sequence c…
Unveiling two expanding stellar groups formed through violent relaxation in The Lagoon Nebula Cluster
A. Bonilla-Barroso, J. Ballesteros-Paredes, J. Hernández +2
The current kinematic state of young stellar clusters can give clues on their actual dynamical state and origin. In this contribution, we use Gaia DR3 data of the Lagoon Nebula Clu…
Structure, kinematics and time evolution of the Galactic Warp from Classical Cepheids
Mauro Cabrera-Gadea, Cecilia Mateu, Pau Ramos +11
The warp is a well-known undulation of the Milky Way disc. Its structure has been widely studied, but only since Gaia DR2 has it been possible to reveal its kinematic signature bey…