Dark Matter Halo & Newton's Shell Theorem - Physics Forums
2016年2月15日 · Dark matter halo is a theoretical concept in astrophysics that refers to a massive, invisible region surrounding a galaxy or galaxy cluster. It is believed to be composed …
Dark Matter Halo + Virial theorem Q. - Physics Forums
2008年7月16日 · Dark matter halo is a hypothetical structure that surrounds a galaxy or galaxy cluster and is composed mostly of dark matter, a type of matter that does not interact with light …
Orbital Velocity due to a Dark Matter Halo - Physics Forums
2012年3月9日 · The orbital velocity can be calculated using the equation V = √(GM/r), where G is the gravitational constant, M is the mass of the galaxy's dark matter halo, and r is the distance …
Dark Matter Halo: Exploring Dynamics & Time Scales - Physics …
2014年4月7日 · Dark matter halo is a theoretical concept that refers to the invisible mass surrounding galaxies and other structures in the universe. It is believed to make up about 85% …
Dark matter "halo" is a "flattened disk" - Physics Forums
2018年8月2日 · Dark matter is a hypothetical form of matter that does not interact with light, making it invisible to telescopes. It is believed to make up about 85% of the total matter in the …
Dark Matter Halo: Modeling Rotational Effect on Galaxy V(r)
2011年4月2日 · The presence of dark matter halo causes the rotational speed of a galaxy to remain constant at larger distances from the galactic center, whereas the rotational speed …
NFW Dark Matter Halos and Virial Radius - Physics Forums
2014年9月5日 · The NFW dark matter halo is important because it helps explain the observed distribution of matter in the universe. By studying the properties of these halos, scientists can …
Can Softening Length Affect Dark Matter Halo Stability in N-Body ...
2009年6月26日 · What exactly are stable dark matter halos? Stable dark matter halos are large, spherical regions of dark matter that surround galaxies and other structures in the universe. …
The average density of halo of non-baryonic dark matter?
2015年3月26日 · The average density of the halo of non-baryonic dark matter is calculated by measuring the gravitational effects of the dark matter on surrounding objects, such as stars …
The origin of cold dark matter halo density profiles - Physics Forums
2005年9月3日 · This paper offers a fairly natural explanation for the universality of dark matter halo profiles. In this model the mass accretion history has two distict phases, first a fast phase …