Zobrazeno 1 - 10
of 2 248
pro vyhledávání: '"Hernquist, Lars"'
Autor:
Jamieson, Nathan, Smith, Aaron, Neyer, Meredith, Kannan, Rahul, Garaldi, Enrico, Vogelsberger, Mark, Hernquist, Lars, Zier, Oliver, Shen, Xuejian, Kakiichi, Koki
The growth of ionized hydrogen bubbles in the intergalactic medium around early luminous objects is a fundamental process during the Epoch of Reionization (EoR). In this study, we analyze bubble sizes and their evolution using the state-of-the-art TH
Externí odkaz:
http://arxiv.org/abs/2411.08943
Autor:
Beane, Angus, Johnson, James, Semenov, Vadim, Hernquist, Lars, Chandra, Vedant, Conroy, Charlie
The Milky Way hosts at least two modes in its present day distribution of Fe and alpha-elements. The exact cause of this bimodality is disputed, but one class of explanations involves the merger between the Milky Way and a relatively massive satellit
Externí odkaz:
http://arxiv.org/abs/2410.21580
Autor:
Bennett, Jake S., Smith, Matthew C., Fielding, Drummond B., Bryan, Greg L., Kim, Chang-Goo, Springel, Volker, Hernquist, Lars
We deploy the new Arkenstone galactic wind model in cosmological simulations for the first time, allowing us to robustly resolve the evolution and impact of high specific energy winds. In a (25$\,h^{-1}\,$Mpc)$^3$ box we perform a set of numerical ex
Externí odkaz:
http://arxiv.org/abs/2410.12909
Bursty star formation at early times can explain the surprising abundance of early UV-bright galaxies revealed by JWST but can also be a reason for the delayed formation of galactic disks in high-resolution cosmological simulations. We investigate th
Externí odkaz:
http://arxiv.org/abs/2410.09205
We investigate early, $z > 3$, galaxy formation in a cosmological zoom-in simulation of a close, early-forming Milky Way (MW) analog extracted from TNG50 simulation and re-simulated with detailed modeling of cold interstellar medium (ISM) formation,
Externí odkaz:
http://arxiv.org/abs/2409.18173
Autor:
Hassan, Sultan, Ostriker, Eve C., Kim, Chang-Goo, Bryan, Greg L., Burger, Jan D., Fielding, Drummond B., Forbes, John C., Genel, Shy, Hernquist, Lars, Jeffreson, Sarah M. R., Motwani, Bhawna, Smith, Matthew C., Somerville, Rachel S., Steinwandel, Ulrich P., Teyssier, Romain
Traditional star formation subgrid models implemented in cosmological galaxy formation simulations, such as that of Springel & Hernquist (2003, hereafter SH03), employ adjustable parameters to satisfy constraints measured in the local Universe. In re
Externí odkaz:
http://arxiv.org/abs/2409.09121
Autor:
Jeffreson, Sarah M. R., Ostriker, Eve C., Kim, Chang-Goo, Gensior, Jindra, Bryan, Greg L., Davis, Timothy A., Hernquist, Lars, Hassan, Sultan
We present a suite of six high-resolution chemo-dynamical simulations of isolated galaxies, spanning observed disk-dominated environments on the star-forming main sequence, as well as quenched, bulge-dominated environments. We compare and contrast th
Externí odkaz:
http://arxiv.org/abs/2409.09114
Autor:
Sorini, Daniele, Bose, Sownak, Pakmor, Rüdiger, Hernquist, Lars, Springel, Volker, Hadzhiyska, Boryana, Hernández-Aguayo, César, Kannan, Rahul
We investigate the redshift evolution of the concentration-mass relationship of dark matter haloes in state-of-the-art cosmological hydrodynamic simulations and their dark-matter-only counterparts. By combining the IllustrisTNG suite and the novel Mi
Externí odkaz:
http://arxiv.org/abs/2409.01758
Autor:
Folsom, Dylan, Lisanti, Mariangela, Necib, Lina, Horta, Danny, Vogelsberger, Mark, Hernquist, Lars
Observations of the Milky Way's stellar halo find that it is predominantly comprised of a radially-biased population of stars, dubbed the Gaia Sausage--Enceladus, or GSE. These stars are thought to be debris from dwarf galaxy accretion early in the M
Externí odkaz:
http://arxiv.org/abs/2408.02723
Autor:
Luu, Hoang Nhan, Mocz, Philip, Vogelsberger, Mark, Pozo, Alvaro, Broadhurst, Tom, Tye, S. -H. Henry, Liu, Tao, Fung, Leo W. H., Smoot, George F., Emami, Razieh, Hernquist, Lars
Fuzzy dark matter (FDM) is a compelling candidate for dark matter, offering a natural explanation for the structure of diffuse low-mass haloes. However, the canonical FDM model with a mass of $10^{-22}~{\rm eV}$ encounters challenges in reproducing t
Externí odkaz:
http://arxiv.org/abs/2408.00827