ANGULAR MOMENTUM OF DWARF GALAXIES
نویسندگان
چکیده
منابع مشابه
On the " Initial " Angular Momentum of Galaxies
Spherical density profiles and specific angular momentum profiles of Dark Matter halos found in cosmological N–body simulations have been measured extensively. The distribution of the total angular momentum of dark matter halos is also used routinely in semi–analytic modeling of the formation of disk galaxies. However, it is unclear whether the initial (i.e. at the time the halo is assembled) a...
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The rotational properties of the visible and dark components of low-mass disk galaxies (vrot ≤ 100 km/s) are investigated using the Swaters sample. The rotational parameter λ = λ(jd/md) is determined, where λ is the dark halo spin parameter and jd/md is the ratio between the specific angular momentum of the disk and that of the dark halo. The distribution of λ is in excellent agreement with cos...
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Cold Dark Matter with a large cosmological constant (ΛCDM) appears to fit large scale structure observations well. Of the possible small scale problems, the Central Cusps and Too Many Satellites problems now appear to be at least partly solved, so Angular Momentum has become the most serious remaining CDM problem. There are actually at least two different angular momentum problems: A. Too much ...
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ژورنال
عنوان ژورنال: The Astrophysical Journal
سال: 2016
ISSN: 2041-8213
DOI: 10.3847/2041-8213/834/1/l4