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Supermassive black holes in galactic nuclei


Young, Peter John (1979) Supermassive black holes in galactic nuclei. Dissertation (Ph.D.), California Institute of Technology.


The existence of supermassive black holes in galactic nuclei is investigated both theoretically and observationally. In addition the dynamics of flattened elliptical galaxies is examined observationally. Part I of the thesis deals with the theoretical distribution of a stellar population around a massive black hole in a galactic nucleus. Part II calculates the luminous energy output such a black hole could achieve by wreaking carnage among the stars in that nucleus. Part III is a photometric study of the radio galaxy M87 and concludes that this galaxy harbours some sort of massive object, if not a black hole. Part IV is a dynamical stud of the same galaxy M87 via spectroscopic measurements of the velocity dispersion as a function of radius. It comes to the same conclusion as in Part III. Part V is a study of the dynamics of the E5 galaxy NGC 4473 which is found to exhibit scant rotation.

Item Type:Thesis (Dissertation (Ph.D.))
Degree Grantor:California Institute of Technology
Division:Physics, Mathematics and Astronomy
Major Option:Astronomy
Thesis Availability:Public (worldwide access)
Research Advisor(s):
  • Sargent, Wallace L. W.
Group:Astronomy Department
Thesis Committee:
  • Unknown, Unknown
Defense Date:10 July 1978
Record Number:CaltechETD:etd-09022008-144208
Persistent URL:
Default Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:3314
Deposited By: Imported from ETD-db
Deposited On:09 Sep 2008
Last Modified:02 Dec 2020 01:09

Thesis Files

PDF (Young_pj_1979.pdf) - Final Version
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