|
Special Session SS3
1 July 2022
Voids: Cosmology, Cosmic Web and Void Galaxies
Voids form a prominent aspect of the Megaparsec distribution of galaxies and matter
(Chincarini & Rood 1975; Gregory & Thompson 1978; Einasto, Joeveer & Saar 1980; Kirshner et al. 1981, 1987; de Lapparent, Geller & Huchra 1986; Colless et al. 2003; Tegmark et al. 2004; Guzzo et al. 2013, 2014). They are enormous regions with sizes in the range of 20 to 50 Mpc that are practically devoid of any galaxy, usually roundish in shape and occupying the major share of space in the Universe. Forming an essential and prominent aspect of the Cosmic Web (Bond, Kofman & Pogosyan 1996), they are instrumental in the spatial organization of the Cosmic Web (Einasto et al. 1980, Icke 1984; Sahni, Sathyaprakash & Shandarin 1994; Sheth & van de Weygaert 2004; Aragon-Calvo & Szalay 2013, Pisani et al. 2020). Surrounded by elongated filaments, sheetlike walls and dense compact clusters, they weave the salient web-like pattern of galaxies and matter pervading the observable Universe. The shape and evolution of voids are highly sensitive to the nature of dark energy, while their substructure and galaxy population provides a direct key to the nature of dark matter (Lee & Park 2008, Lavaux & Wandelt 2011, Bos et al. 2012, Pisani et al. 2015, 2020). Moreover, the pristine environment of void interiors is an important testing ground for our understanding of environmental influences on galaxy formation and evolution
Programme
Invited speakers
Scientific organisers Isabel Pérez (Chair, Universidad de Granada), Rien van den Weijgaert (co-Chair, Kapteyn Astronomical Institute), Mamen Argudo (U. Pontificia de Valapraiso), Marie Aubert (U. de Lyon), Daniel Espada (U. de Granada), Ruben García-Benito (IAA), Ute Lisenfeld (U. de Granada), Alice Pisani (Pricenton University), Susana Planelles (U.de Valencia), Vicent Quilis (U. de Valencia), Tomás Ruiz-Lara (Kapteyn Astronomical Institute), Patricia Sánchez-Blázquez (U. Complutense de Madrid), Laura Sánchez-Menguiano (U. de Granada) Contact Isabel Pérez (isa @ ugr.es), Rien van den Weijgaert (weygaert @ astro.rug.nl) Updated on Fri May 27 10:12:43 CEST 2022
|
|||||||||||
European Astronomical Society |