Palabras clave
exact solution
Einstein
temperature
Hubble
deceleration parameter
Kretschmann
singularity
cosmología
solución exacta
Einstein
temperatura
Hubble
parámetro de deceleración
Kretschmann
singularidad
Cómo citar
Resumen
En este trabajo se obtienen dos soluciones exactas de las ecuaciones de Einstein para una simetría anisotrópica y homogénea del Tipo Petrov D, la diferencia entre ambas soluciones radica en que tan relevante es la expansión que se presenta inicialmente, ya sea en un eje o en un plano perpendicular. Dichas soluciones representan una mezcla de dos fluidos con mínima interacción: energía oscura (P = −µ) y radiación (P = µ/3). Se estudia las singularidades y la influencia que estos fluidos tienen en esta métrica; así como el parámetro de Hubble, el parámetro de desaceleración y la influencia que estos fluidos tienen en ellos. Además, se determina su temperatura y el papel que ambos juegan en esta magnitud.
Citas
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Derechos de autor 2022 Andrés A. Angulo Sibaja, Rodrigo Alvarado Marín, Mauricio Vargas Obando