title: Supermassive Black Holes and their Host Galaxies - Fundamental Scaling Relations
creator: Läsker, Ronald
subject: ddc-500
subject: 500 Natural sciences and mathematics
subject: ddc-520
subject: 520 Astronomy and allied sciences
description: The research presented in this thesis aims at improving the characterization of the scaling relations of  the masses of central Supermassive Black Holes with bulge and total luminosities of their host galaxies.  These scaling relations are significant for our understanding of the evolution of galaxies and the origins  of Supermassive Black Holes. As part of this investigation, 35 galaxies with known central Black Hole  mass were observed at near-infrared wavelengths. The obtained images were subjected to a thorough  photometric analysis, which led to reliable bulge and total luminosities. As a result, it could be shown  that the slope of the correlation between central Black Hole masses and bulge luminosities was previously  overestimated. Further, it was found that the correlation with total luminosity is equally tight as the  correlation with bulge luminosity. A linear regression method was devolped that enables extraction of  more detailed information about the cosmic scatter in the scaling relations. In the last part of this thesis,  a Black Hole mass was determined by means of dynamical modeling. The measured mass far exceeds  the prediction from current scaling relations, thereby putting the universality of the scaling relations in  question and principally opening up opportunities to better understand the physics of galaxy and Black  Hole formation.
date: 2013
type: Dissertation
type: info:eu-repo/semantics/doctoralThesis
type: NonPeerReviewed
format: application/pdf
identifier: https://archiv.ub.uni-heidelberg.de/volltextserverhttps://archiv.ub.uni-heidelberg.de/volltextserver/14888/1/laesker2013.pdf
identifier: DOI:10.11588/heidok.00014888
identifier: urn:nbn:de:bsz:16-heidok-148884
identifier:   Läsker, Ronald  (2013) Supermassive Black Holes and their Host Galaxies - Fundamental Scaling Relations.  [Dissertation]     
relation: https://archiv.ub.uni-heidelberg.de/volltextserver/14888/
rights: info:eu-repo/semantics/openAccess
rights: http://archiv.ub.uni-heidelberg.de/volltextserver/help/license_urhg.html
language: eng