cuspy


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cuspy

/kuhs'pee/ [WPI: from the DEC abbreviation CUSP, for "Commonly Used System Program", i.e. a utility program used by many people] 1. (of a program) Well-written.

2. Functionally excellent. A program that performs well and interfaces well to users is cuspy. See rude.
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If a realistic value of the stellar mass-to-light ratio is adopted, a cuspy DM halo ([alpha] = 1) profile is consistent with the observed stellar dynamics while a cored profile ([alpha] = 0) is rejected at 2.2[sigma] significance.
The authors conclude that "the analysis of this first galaxy shows promising evidence that dark matter halos in late-type dwarfs may in fact be more consistent with cuspy dark matter distributions than earlier work has claimed".
After that, it can quickly accelerate to 24 [percent] or even 36 [percent] when the outlook gets cuspy," he adds.
First, they noted the galaxy's cuspy central light profile.
Some observations support such a steep cuspy density profile [41, 42]; nevertheless certain high-resolution rotation curves instead indicate that the distribution of DM in the centres of DM dominated dwarf and Low Surface Brightness (LSB) galaxies is much shallower, exhibiting a core with nearly constant density [43].
We use a Burkert [23, 24] flat, cored, dark-matter density profile known to reproduce well the kinematics of disk systems in massive spiral galaxies and supported by recent simulations including supernova feedback and radiation pressure of massive stars [25] in response to the cuspy halo problem: