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El origen de las galaxias y los cúmulos de galaxias
Science (New York, N.Y.)
|June 29, 1984
Resumen
Las estructuras galácticas desafían las teorías de formación. Algunas galaxias se forman en densos protocúmulos, mientras que otras, como la nuestra, parecen independientes pero similares a las galaxias del cúmulo, lo que sugiere una evolución cósmica compleja.
Área de la Ciencia:
- Cosmología y astronomía extragaláctica.
- Formación y evolución de las galaxias.
- Estructura a gran escala del Universo.
Sus antecedentes:
- La formación de galaxias y cúmulos de galaxias es una cuestión central en la cosmología.
- La distribución observada de las galaxias exhibe una estructura compleja y espumosa.
- Esta estructura puede representar redes fosilizadas de protocúmulos o panqueques cósmicos.
Objetivo del estudio:
- Para investigar escenarios contradictorios para la formación de galaxias y cúmulos.
- Para conciliar la presencia de galaxias aparentemente fuera de los entornos de protocúmulos.
- Evaluar los factores clave que resuelven el dilema de la formación de galaxias.
Principales métodos:
- Análisis de los patrones de distribución de las galaxias.
- Evaluación de las edades relativas de las galaxias y cúmulos de galaxias.
- Investigación de la continuidad entre los diferentes entornos galácticos ( racimo, campo, filamentos).
Principales resultados:
- La distribución de galaxias "espumosas" sugiere la formación a través de redes de protocúmulos o de panqueques.
- Algunas galaxias se asemejan a las galaxias de cúmulos a pesar de no tener su origen en protocúmulos.
- La evidencia de filamentos de galaxias puede vincular diferentes escenarios de formación.
Conclusiones:
- Resolver la formación de galaxias requiere considerar los filamentos de las galaxias, las edades relativas y la continuidad ambiental.
- La formación de galaxias y cúmulos es más compleja que escenarios simples y singulares.
- Se necesita más investigación para comprender completamente las diversas vías de formación de la estructura cósmica.
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