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Mass-to-Light ratios for elliptical galaxies

Land, D. (2008) Mass-to-Light ratios for elliptical galaxies. Master's Thesis / Essay, Astronomy.

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With Newtonian dynamics, the masses of elliptical galaxies do not explain the masses derived from the luminosity of the galaxy itself. In this research, different methods to determine the masses of galaxies are compared to mass estimates of the same objects with modified Newtonian dynamics. We conclude that the modified Newtonian dynamics mass estimates agree well with stellar population models and mass estimates using lensing data. A problem for X-ray mass measurements is the assumption of hydrostatic equilibrium. This assumption might not be valid, which might explain the sometimes extremely high mass-to-light ratios for these objects.

Item Type: Thesis (Master's Thesis / Essay)
Degree programme: Astronomy
Thesis type: Master's Thesis / Essay
Language: English
Date Deposited: 15 Feb 2018 07:30
Last Modified: 15 Feb 2018 07:30

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