On the possibility of Bose-star formation

Details On the possibility of Bose-star formation On the possibility of Bose-star formation

May 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991phlb..261..289t&link_type=abstract

Physics Letters B, Volume 261, Issue 3, p. 289-293.

Physics

31

Scientific paper

The relaxation time of a gravitationally bounded cloud of bosons is estimated for the case of a large phase-space density of particles. The axionic mass and self-coupling relaxation time are compatible to the age of the Universe if the escape velocity and the mass in the core region satisfy the relation M < 108ve5/2φ10-1/4Msolar. In the central part of such a cloud an axionic cosmic matter with luminosity ~ 10-2vr5/2φ10-1/4Msolar/yr will form. An upper bound on the self-coupling is obtained provided the mass distribution in galaxies is dominated by this kind of dark matter.
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