Cosmic energy equation and clustering of non-point mass system of galaxies |
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| Authors: | Abdul Wahid Farooq Ahmad Aasifa Nazir |
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| Institution: | 1.University of Kashmir,Hazratbal Srinagar,India;2.Inter-University Centre for Astronomy and Astrophysics,Pune,India |
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| Abstract: | Cosmic energy equation is an important equation for studying the gravitational galaxy clustering in the expanding universe.
We derive the distribution function for fluctuations in particle number by using the cosmic energy equation for extended structures
(galaxies with halos). From spatial distribution function, containing particle fluctuations, we derive the velocity distribution
function to understand the influence of particle fluctuations on the velocities of galaxies.With the help of cosmic energy
equation we try to find out the physical constraints for the application of quasi-equilibrium approximation. |
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