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Shock‐heated Gas in the Large‐Scale Structure of the Universe [PDF]
, 2005 Cosmological shock waves are a ubiquitous consequence of cosmic structure formation. They play a major role in heating baryonic gas in the large-scale structure of the universe. In this contribution we study the shock-heated gas in connection with shocks
Hyesung Kang +3 more
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Signatures of Primordial Gravitational Waves on the Large-Scale Structure of the Universe. [PDF]
Physical Review Letters, 2021 We study the generation and evolution of second-order energy-density perturbations arising from primordial gravitational waves. Such "tensor-induced scalar modes" approximately evolve as standard linear matter perturbations and may leave observable ...
Pritha Bari +4 more
semanticscholar +1 more source
Cluster-counterpart Voids: Void Identification from Galaxy Density Field
The Astrophysical Journal, 2023 We identify cosmic voids from galaxy density fields under the theory of void–cluster correspondence. We extend the previous novel void-identification method developed for the matter density field to the galaxy density field for practical applications ...
Junsup Shim +3 more
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The Large Scale Structure of Space-Time
, 2023 First published in 1973, this influential work discusses Einstein's General Theory of Relativity to show how two of its predictions arise: first, that the ultimate fate of many massive stars is to undergo gravitational collapse to form 'black holes'; and
S. Hawking, G. Ellis
semanticscholar +1 more source
The Density Parity Model for the Evolution of the Subhalo Inner Spin Alignments with the Cosmic Web
The Astrophysical Journal, 2023 We develop a new model within which the radius-dependent transition of the subhalo inner spins with respect to the cosmic web and the variation of the transition threshold radius ( r _th ) with subhalo mass ( M _vir ), smoothing scale ( r _f ), and ...
Jun-Sung Moon, Jounghun Lee
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The Astrophysical Journal, 2023 We construct accurate emulators for the projected and redshift space galaxy correlation functions and excess surface density as measured by galaxy–galaxy lensing, based on halo occupation distribution modeling.
Juliana Kwan +9 more
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Radius-dependent Spin Transition of Dark Matter Halos
The Astrophysical Journal, 2023 A numerical detection of the radius-dependent spin transition of dark matter halos is reported. Analyzing the data from the IllustrisTNG simulations, we measure the halo spin vectors at several inner radii within the virial boundaries and investigate ...
Jun-Sung Moon, Jounghun Lee
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Turbulence and Magnetic Fields in the Large-Scale Structure of the Universe [PDF]
Science, 2008 The nature and origin of turbulence and magnetic fields in the intergalactic space are important problems that are yet to be understood. We propose a scenario in which turbulent-flow motions are induced via the cascade of the vorticity generated at ...
D. Ryu +3 more
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Reoriented Memory of Galaxy Spins for the Early Universe
The Astrophysical Journal, 2023 Galaxy spins are believed to retain the initially acquired tendency of being aligned with the intermediate principal axis of the linear tidal field, which disseminates the prospect of using them as a probe of early universe physics. This roseate prospect,
Jun-Sung Moon, Jounghun Lee
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An Observed Transition of Galaxy Spins on Void Surfaces
The Astrophysical Journal Letters, 2023 In linear theory, the galaxy angular momentum vectors that originate from initial tidal interactions with surrounding matter distribution intrinsically develop perpendicular alignments with the directions of maximum matter compression, regardless of ...
Jounghun Lee, Jun-Sung Moon
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