QUANTUM ASPECT OF DARK-MATTER AND STAR-FORMATION IN ELLIPTIC GALAXIES

We propose a mechanism for efficient star formation during the formati on of an elliptical galaxy, which has been a well-known puzzle in the 'standard' scenario for the Hubble sequence. This mechanism also expla ins why visible parts of the ellipticals have little angular momentum. The main idea is to introduce a self-interacting light boson with m a pproximately 10(-14) eV as a major component of dark matter. We consid er the quantum aspect of dark matter and the role of the angular momen tum. To explain the origin of this particle, we suggest a series of la te-time phase transitions.