Results 131 to 140 of about 2,655,258 (212)

The Formation of Dark Matter Halos and High-Redshift Galaxies

, 2011
In the concordance LCDM cosmological model, galaxies form in the centers of dark matter halos and merge with one another following the mergers of their host halos. Thus, we set out to quantify the growth mechanisms of dark matter halos. For this purpose, we analyze several large N-body simulations of the growth of cosmic structure.
openaire   +2 more sources

Halo Asymmetry in the Modeling of Galaxy Clustering

The Astrophysical Journal
Conventional studies of galaxy clustering within the framework of halo models typically assume that the density profile of all dark matter halos can be approximated by the Navarro–Frenk–White (NFW) spherically symmetric profile.
Anna Durkalec, Agnieszka Pollo, Ummi Abbas   +2 more
doaj   +1 more source

Linking Warm Dark Matter to Merger Tree Histories via Deep Learning Networks

The Astrophysical Journal
Dark matter (DM) halos form hierarchically in the Universe through a series of merger events. By pairing halo finder and postprocessing codes, merger series in cosmological simulations can be conveniently represented as a graph-like “tree” structure ...
Ilem Leisher, Paul Torrey, Alex M. Garcia, Jonah C. Rose, Francisco Villaescusa-Navarro, Zachary Lubberts, Arya Farahi, Stephanie O’Neil, Xuejian Shen, Olivia Mostow, Nitya Kallivayalil, Dhruv Zimmerman, Desika Narayanan, Mark Vogelsberger   +13 more
doaj   +1 more source

Comments on 'Modeling Galaxy Halos Using Dark Matter with Pressure' [PDF]

, 2011
We comment on the calculational mistake in the paper 'Modeling galaxy halos using dark matter with pressure' by Somnath Bharadwaj and Sayan Kar. The authors made a mistake while calculating the metric, which led to an overestimate of the deflection angle
/Taiwan, Natl. Taiwan U., Su, Kung-Yi, /Taiwan, Natl. Taiwan U. /KIPAC, Menlo Park /SLAC, Chen, Pisin   +3 more
core  

A forward modeling approach to analyzing galaxy clustering with SimBIG. [PDF]

Proc Natl Acad Sci U S A, 2023
Hahn C, Eickenberg M, Ho S, Hou J, Lemos P, Massara E, Modi C, Moradinezhad Dizgah A, Blancard BR, Abidi MM.   +9 more
europepmc   +1 more source

The James Webb Space Telescope prompts a rethink of how galaxies form. [PDF]

Proc Natl Acad Sci U S A, 2023
Mann A.
europepmc   +1 more source

Network of spin-based sensors constrains topological dark matter. [PDF]

Natl Sci Rev
Budker D.
europepmc   +1 more source

Stellar feedback drives the baryon deficiency in low-mass galaxies. [PDF]

Sci Adv
Yu H, Wang E, Chen Z, Péroux C, Zou H, He Z, Wang H, Lyu C, Jia C, Ma C, Kong X.   +10 more
europepmc   +1 more source

Overmassive black holes and little red dots naturally form in simulations. [PDF]

Nature
Chon S, Hirano S, Ishiyama T, Chang SJ, Springel V.   +4 more
europepmc   +1 more source

The abundance and radial distribution of faint and ultra-faint dwarfs in galaxy clusters. [PDF]

Mon Not R Astron Soc
Sadhu P, Sales LV, Navarro JF, Errani R, Benavides J, Peng EW.   +5 more
europepmc   +1 more source