Quasars from galaxy collisions with naked black holes

Masataka Fukugita, Edwin L. Turner

Research output: Contribution to journalArticlepeer-review

10 Scopus citations


Motivated by a set of new Hubble Space Telescope observations by Bahcall and collaborators, we propose that the universe contains a substantial independent population of supermassive black holes and that QSOs are a phenomenon that occurs when they collide with galaxies or gas clouds in the intergalactic medium. We argue that this new model is not in conflict with any available constraints and would also naturally explain one puzzle for the conventional model, the very rapid QSO population decline toward low redshift. The hypothesis therefore bears further investigation.

Original languageEnglish (US)
Pages (from-to)L81-L84
JournalAstrophysical Journal
Issue number2 PART II
StatePublished - 1996

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science


  • Black hole physics
  • Cosmology: theory
  • Quasars: general


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