Zobrazeno 1 - 10
of 130
pro vyhledávání: '"Jounghun Lee"'
Autor:
Jun-Sung Moon, Jounghun Lee
Publikováno v:
The Astrophysical Journal, Vol 966, Iss 1, p 100 (2024)
A numerical detection of the τ -driven transition of galaxy spins is presented, where τ is the degree of misalignment between the initial tidal field and protogalaxy inertia tensors. Analyzing the data from the IllustrisTNG300-1 simulations, we fir
Externí odkaz:
https://doaj.org/article/0e2639e4125648cd8b4fdc9b8fca07dc
Autor:
Jounghun Lee, Jun-Sung Moon
Publikováno v:
The Astrophysical Journal Letters, Vol 951, Iss 2, p L26 (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
Externí odkaz:
https://doaj.org/article/6df28c1a84af4d5aa0deb6c4d5acfe2d
Autor:
Jun-Sung Moon, Jounghun Lee
Publikováno v:
The Astrophysical Journal, Vol 952, Iss 2, p 101 (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 pros
Externí odkaz:
https://doaj.org/article/5a058e7600e1424e83c424b976387842
Autor:
Jun-Sung Moon, Jounghun Lee
Publikováno v:
The Astrophysical Journal, Vol 952, Iss 1, p 82 (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 r
Externí odkaz:
https://doaj.org/article/2e8ab35d14b840309defebe3033bf769
Publikováno v:
The Astrophysical Journal, Vol 945, Iss 1, p 15 (2023)
We present two new diagnostics based on the intrinsic shape alignments of group/cluster size dark matter halos to disentangle the effect of f ( R ) gravity from that of massive neutrinos. Using snapshot data from a series of the DUSTGRAIN -pathfinder
Externí odkaz:
https://doaj.org/article/52d8ee12a5494064bffee3369492e009
Autor:
Jun-Sung Moon, Jounghun Lee
Publikováno v:
The Astrophysical Journal, Vol 945, Iss 1, p 13 (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
Externí odkaz:
https://doaj.org/article/5a6f9a1a5649442e8e70b439ac0e6894
Publikováno v:
Journal of Information Processing. 30:190-200
Autor:
Jounghun Lee, Jun-Sung Moon
We present a numerical evidence supporting the scenario that the peculiar alignments of the galaxy stellar spins with the major principal axes of the local tidal tensors are produced during the quiescent evolution period when the galaxies experience
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ed471543fbd30e00bb98da0301594c51
http://arxiv.org/abs/2204.11268
http://arxiv.org/abs/2204.11268
Autor:
Suho Ryu, Jounghun Lee
We present a complementary methodology to constrain the total neutrino mass, $\sum m_{\nu}$, based on the diffusion coefficient of the splashback mass function of dark matter halos. Analyzing the snapshot data from the Massive Neutrino Simulations, w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b4c489dfd589ea2b4fb18c39182ac091
Autor:
Jounghun Lee, Marco Baldi
We present a new statistics based on the turnaround radii of cluster halos to break the dark sector degeneracy between the ΛCDM model and the alternative ones with f(R) gravity and massive neutrinos (ν) characterized by the strength of the fifth fo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1d0d5460df13b1e8ac848c2a70fe90b9
https://hdl.handle.net/11585/905532
https://hdl.handle.net/11585/905532