Resultados recientes sobre estrellas de bosones, Proca y Dirac
En esta charla presentaré algunos resultados recientes sobre el estudio de estrellas bosónicas y estrellas de Dirac, que son sistemas auto-gravitantes en la relatividad general formados por campos complejos y masivos, ya sean escalares, vectoriales o espinoriales. En particular consideraré las soluciones estacionarias en simetría esférica, y sus propiedades de estabilidad ante perturbaciones.
Investigating the Early Phases of Massive Star Formation Using 6.7 GHz Methanol Masers
Abstract:Understanding how massive stars form remains one of the central challenges in astrophysics because their earliest stages are deeply embedded within dense clouds of gas and dust. Class II 6.7 GHz methanol masers are among the best tracers of these young massive stellar objects, making them powerful probes of the earliest phases of high-mass star […]
The Chiral Puzzle of Life
Supernova-induced cosmic radiation has been proposed as a potential driver of biological evolution. In particular, muons generated through parity-violating weak interactions possess a net spin polarization that may have introduced subtle biases during polymerization, potentially influencing the emergence of the homochiral molecular architecture universally observed in terrestrial biology. In this presentation, I will examine the […]
Espejismos y Bosques: Claves para la Materia y Energía Oscura
Estamos viviendo un momento fascinante para la cosmología: el Censo Legado del Espacio y el Tiempo del Observatorio Vera C. Rubin (LSST) está a punto de iniciar formalmente, mientras que DESI completa su primera fase de observaciones, habiendo obtenido ya más de 60 millones de espectros de galaxias y estrellas. Ambos proyectos son clave para […]
What if gravity is the actual agent regulating star formation?
Star formation is often described as the outcome of a balance between gravity and turbulence. In this talk, I will argue that this picture is fundamentally misleading. I will show that molecular cloud turbulence is not the agent regulating star formation, but largely a manifestation of gravitationally driven flows. Molecular clouds, clumps, and cores participate […]
Cosmic Webs and Flows: Connections to Earthly Systems and Spins
The cosmic web is the largest flow system in the universe. It resembles some other flow networks found on earth, and even in the human body: water in river networks, blood in veins, arteries, and air in lungs. I will describe some results arising from an analogy between the cosmic web and a few different […]
Identidad Digital del Autor: ORCID, Scopus, Web of Science y ADS
El objetivo de esta charla es analizar la importancia de construir una identidad digital académica unificada, interoperable y actualizada, vinculada tanto a la producción científica individual como a la identidad institucional. En este sentido, resulta fundamental promover la normalización y homogeneización de las afiliaciones institucionales de la Universidad Nacional Autónoma de México, ya que las […]
The connections between the chemical abundances of stars and their exoplanetary systems
The stellar metallicity influences the occurrence of giant and small hot exoplanets. However, the role of elements other than iron on planetary formation is still unclear. In this talk, I will discuss the relations between the abundances of 13 chemical elements (Na, Mg, Al, Si, Ca, Sc, Ti, V, Cr, Mn, Co, Ni, and Cu) […]
El instrumento simultáneo 2CAN
En esta charla se describe el funcionamiento del instrumento 2CAN y los resultados obtenidos en algunas temporadas de observación, dentro de los objetivos científicos que motivaron su construcción. Este es un instrumento de imagen directa de doble canal (VIS–SWIR) desarrollado para el telescopio de 1.5 m. El sistema emplea un divisor dicróico para realizar observaciones simultáneas […]
CPDs and regular satellite formation around giant planets
We present results of the highest resolution, global, MHD simulations to date of the flow around a newly formed planet of Neptune or Jupiter-like mass, embeded in a magnetized, turbulent protoplanetary disk. In addition to the development of MRI turbulence in the CPD and the ej of highly collimated jets, we discuss possible implications of […]