Cosmic void clumps

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

Congreso; Reunión Anual de la Asociación Argentina de Astronomía; 2017

Cosmic voids are of great interest given their relation to the largescale distribution of mass and the way they trace cosmic flows shapingthe cosmic web. Here we show that the distribution of voids has, inconsonance with the distribution of mass, a characteristic scale atwhich void pairs are preferentially located. We identify clumps of voidswith similar environments and use them to define second orderunderdensities. Also, we characterize its properties and analyze itsimpact on the cosmic microwave background.