Clump-driven galaxy evolution and quasar activity

Masafumi Noguchi

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


The collapse of a protogalaxy composed of dark matter and primordial gas has been investigated by numerical simulations and analytical multi-zone modelling in an attempt to examine the early evolution of disk galaxies. The importance of ample interstellar matter existing in young galactic disks has been highlighted. Confrontation of the theoretical results with the available observational data has led to a new picture for disk galaxy evolution, in which the bulge is the secondary object formed from disk matter. Occurrence of quasar activity is also discussed in relation to the dynamical evolution of the host galaxy.

Original languageEnglish
Pages (from-to)1121-1130
Number of pages10
JournalAdvances in Space Research
Issue number5-6
Publication statusPublished - 1999 Jan 1

ASJC Scopus subject areas

  • Aerospace Engineering
  • Astronomy and Astrophysics
  • Geophysics
  • Atmospheric Science
  • Space and Planetary Science
  • Earth and Planetary Sciences(all)


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