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Bringing the Visible Universe into Focus with Robo-AO
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La red cósmica en nuestro propio patio trasero.

Rodrigo A Ibata1, Geraint F Lewis

  • 1Observatoire Astronomique de Strasbourg, 11, rue de l'Université, 67000 Strasbourg, France.

Science (New York, N.Y.)
|January 5, 2008
PubMed
Resumen

Los astrónomos están buscando aglomerados de materia oscura en nuestro halo galáctico, como predijo el modelo de la red cósmica. Las búsquedas actuales no han encontrado la población esperada, lo que plantea preguntas sobre la materia oscura o la física de los gases del universo temprano.

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Área de la Ciencia:

  • Cosmología y astrofísica.
  • Investigando la estructura a gran escala del universo.

Sus antecedentes:

  • La distribución de la materia en grandes escalas forma la red cósmica.
  • Se predice que los tentáculos de la red cósmica se extenderán hasta el halo galáctico, que contiene bultos de materia oscura.
  • Las estrellas que se forman dentro de estos bultos de materia oscura son objetivos observacionales clave.

Objetivo del estudio:

  • Para investigar la discrepancia entre las poblaciones de materia oscura predichas y observadas en el halo galáctico.
  • Determinar si la falta de bultos de materia oscura detectados indica una "crisis de materia oscura" o proporciona información sobre la física de los gases en el universo temprano.

Principales métodos:

  • Esfuerzos astronómicos observacionales dirigidos a estrellas dentro del halo galáctico.
  • Análisis de la estructura predicha de la red cósmica y sus implicaciones para la distribución de la materia oscura.

Principales resultados:

  • No se ha detectado una población esperada significativa de bultos de materia oscura.
  • La búsqueda de estas estructuras de materia oscura iluminadas por estrellas ha dado resultados nulos.

Conclusiones:

  • La ausencia de los grumos de materia oscura esperados desafía los modelos actuales.
  • Se necesitan más investigaciones para entender si esto apunta a una crisis de materia oscura o a una compleja física de gases en el universo temprano.
  • Se espera que los próximos avances tecnológicos proporcionen respuestas definitivas.