Results 81 to 90 of about 97,868 (355)
Constraints on the relationship between stellar mass and halo mass at low and high redshift
, 2009 We use a statistical approach to determine the relationship between the stellar masses of galaxies and the masses of the dark matter halos in which they reside.
Andrea V. Macciò +38 more
core +1 more source
The First Galaxies: Assembly under Radiative Feedback from the First Stars [PDF]
, 2013 We investigate how radiative feedback from the first stars affects the assembly of the first dwarf galaxies. We perform cosmological zoomed SPH simulations of a dwarf galaxy assembling inside a halo of virial mass 10^9 solar at z = 10.
Bromm, Volker +2 more
core +2 more sources
THE AVERAGE STAR FORMATION HISTORIES OF GALAXIES IN DARK MATTER HALOS FROM z = 0–8 [PDF]
, 2012 We present a robust method to constrain average galaxy star formation rates (SFRs), star formation histories (SFHs), and the intracluster light (ICL) as a function of halo mass.
P. Behroozi, Risa Wechsler, C. Conroy
semanticscholar +1 more source
The early merger that made the galaxy’s stellar halo [PDF]
Proceedings of the International Astronomical Union, 2019 AbstractThe last two years have seen widespread acceptance of the idea that the Milky Way halo was largely created in an early (8-10 Gyr ago) and massive (>1010Mȯ) merger. The roots of this idea pre-date the Gaia mission, but the exquisite proper motions available from Gaia have made the hypothesis irresistible.
openaire +2 more sources
THE STELLAR-TO-HALO MASS RELATION FOR LOCAL GROUP GALAXIES [PDF]
The Astrophysical Journal, 2014 We contend that a single power law halo mass distribution is appropriate for direct matching to the stellar masses of observed Local Group dwarf galaxies, allowing the determination of the slope of the stellar mass-halo mass relation for low mass galaxies. Errors in halo masses are well defined as the Poisson noise of simulated local group realisations,
Brook, C. B. +6 more
openaire +2 more sources
Regulation of Star Formation by a Hot Circumgalactic Medium
The Astrophysical Journal, 2023 Galactic outflows driven by supernovae (SNe) are thought to be a powerful regulator of a galaxy’s star-forming efficiency. Mass, energy, and metal outflows ( η _M , η _E , and η _Z , here normalized by the star formation rate, the SNe energy, and metal ...
Christopher Carr +4 more
doaj +1 more source
THE IMPACT OF STELLAR FEEDBACK ON THE STRUCTURE, SIZE, AND MORPHOLOGY OF GALAXIES IN MILKY-WAY-SIZED DARK MATTER HALOS [PDF]
, 2015 We use cosmological zoom-in simulations of galaxy formation in a Milky-Way-sized halo started from identical initial conditions to investigate the evolution of galaxy sizes, baryon fractions, morphologies, and angular momenta in runs with different ...
O. Agertz, A. Kravtsov
semanticscholar +1 more source
Advanced Healthcare Materials, EarlyView.Novel photo‐clickable triazine‐trione thermosets can be shaped and cured under mild conditions, including room and physiological temperatures. These materials are biocompatible and support osteogenic differentiation of bone marrow–derived mesenchymal stem cells on their surface.
Åshild Johansen +7 more
wiley +1 more source
The Astrophysical JournalRecent observations suggest that the extended stellar halos of low-redshift massive galaxies are tightly connected to the assembly of their dark matter halos.
Shuo Xu +6 more
doaj +1 more source
The Astrophysical Journal, 2023 We present spectroscopic chemical abundances of red giant branch stars in Andromeda (M31), using medium-resolution ( R ∼ 6000) spectra obtained via the Spectroscopic and Photometric Landscape of Andromeda’s Stellar Halo survey.
J. Leigh Wojno +8 more
doaj +1 more source