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16 papers · 2 filters
Large-scale structures in the CDM Universe: network analysis and machine learning
Maksym Tsizh, Bohdan Novosyadlyj, Yurij Holovatch +1
We perform an analysis of the Cosmic Web as a complex network, which is built on a CDM cosmological simulation. For each of nodes, which are in this case dark matter halos forme…
Detecting the neutral IGM in filaments with the SKA
Robin Kooistra, Marta B. Silva, Saleem Zaroubi +3
The intergalactic medium (IGM) plays an important role in the formation and evolution of galaxies. Recent developments in upcoming radio telescopes are starting to open up the poss…
A kinematic confirmation of the hidden Vela supercluster
Helene M. Courtois, Renee. C. Kraan-Korteweg, Alexandra Dupuy +2
The universe region obscured by the Milky Way is very large and only future blind large HI redshift, and targeted peculiar surveys on the outer borders will determine how much mass…
Partitioning the universe into gravitational basins using the cosmic velocity field
A. Dupuy, H. M. Courtois, F. Dupont +8
This letter presents a new approach using the cosmic peculiar velocity field to characterize the morphology and size of large scale structures in the local Universe. The algorithm…
The Carnegie-Chicago Hubble Program. VIII. An Independent Determination of the Hubble Constant Based on the Tip of the Red Giant Branch
Wendy L. Freedman, Barry F. Madore, Dylan Hatt +10
We present a new and independent determination of the local value of the Hubble constant based on a calibration of the Tip of the Red Giant Branch (TRGB) applied to Type Ia superno…
Photometric redshift galaxies as tracers of the filamentary network
Maarja Kruuse, Elmo Tempel, Rain Kipper +1
Galaxy filaments are the dominant feature in the overall structure of the cosmic web. The study of the filamentary web is an important aspect in understanding galaxy evolution and…