10 papers
Probing dark energy evolution with Quaia quasars through the integrated Sachs-Wolfe effect
M. Ghodsi Yengejeh, J. R. Bermejo-Climent, A. Kovács +2
The Integrated Sachs--Wolfe (ISW) effect probes the late-time evolution of gravitational potentials and provides a complementary test of the nature of dark energy. We investigate w…
Galaxy and Halo Root Systems: Fingerprints of Mass Assembly
Mark Neyrinck, Miguel Aragón-Calvo, István Szapudi
We discuss what we call halo or galaxy root systems, collections of particle pathlines that show the infall of matter from the initial uniform distribution into a collapsed structu…
Cylindrical cosmological simulations with StePS
Gábor Rácz, Viola H. Varga, Balázs Pál +3
The global topology of the Universe can affect long-range gravitational forces via boundary conditions. Detailed studies of non-trivial topologies require simulations that natively…
STEPSIC: Initial condition generator for stereographic cosmological simulations
Balázs Pál, Gábor Rácz, István Csabai +1
Conventional cosmological initial condition generators are designed exclusively for fully periodic cubic domains and cannot produce the non-periodic, observer-centric configuration…
Galaxy Zoo: Cosmic Dawn -- morphological classifications for over 41,000 galaxies in the Euclid Deep Field North from the Hawaii Two-0 Cosmic Dawn survey
James Pearson, Hugh Dickinson, Stephen Serjeant +22
We present morphological classifications of over 41,000 galaxies out to across six square degrees of the Euclid Deep Field North (EDFN) from the Hawaii Twenty…
Integrated Sachs-Wolfe maps from the Gower Street CDM simulations
Mina Ghodsi Yengejeh, András Kovács, István Szapudi +1
The late-time linear Integrated Sachs-Wolfe (ISW) effect directly probes the dynamics of cosmic acceleration and the nature of dark energy. Detecting these weak, secondary temperat…