Journal article
ANGULAR MOMENTUM ACQUISITION IN GALAXY HALOS
Abstract
We use high-resolution cosmological hydrodynamic simulations to study the angular momentum acquisition of gaseous halos around Milky-Way-sized galaxies. We find that cold mode accreted gas enters a galaxy halo with ∼70% more specific angular momentum than dark matter averaged over cosmic time (though with a very large dispersion). In fact, we find that all matter has a higher spin parameter when measured at accretion than when averaged over the …
Authors
Stewart KR; Brooks AM; Bullock JS; Maller AH; Diemand J; Wadsley J; Moustakas LA
Journal
The Astrophysical Journal, Vol. 769, No. 1,
Publisher
American Astronomical Society
Publication Date
May 20, 2013
DOI
10.1088/0004-637x/769/1/74
ISSN
0004-637X