Cosmic void clumps

LARES, M; LUPARELLO, H. E; GARCIA LAMBAS, DIEGO; RUIZ, ANDRÉS N; CECCARELLI, LAURA; PAZ, DANTE

Boletín de la Asociación Argentina de Astronomía

Asociación Argentina de Astronomía

Año: 2017 vol. 59 p. 115 - 117

1669-9521

Cosmic voids are of great interest given their relation to the large scale distribution of mass and the way they trace cosmic flows shaping the cosmic web. Here we show that the distribution of voids has, in consonance with the distribution of mass, a characteristic scale at which void pairs are preferentially located. We identify clumps of voids with similar environments and use them to define second order underdensities. Also, we characterize its properties and analyze its impact on the cosmic microwave background.