Formation of the white-dwarf population of the Galactic halo

Details Formation of the white-dwarf population of the Galactic halo Formation of the white-dwarf population of the Galactic halo

Jan 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009arep...53...59s&link_type=abstract

Astronomy Reports, Volume 53, Issue 1, pp.59-66

Astronomy and Astrophysics

Astronomy

98.35.Gi, 97.20.Rp

Scientific paper

Microlensing events detected in the MACHO project are sometimes interpreted as evidence for the presence of a rich population of white dwarfs in the halo of the Galaxy, containing up to 1012 objects. In this connection, we study the possible formation of this population in the Galaxy via the accretion of gaseous or gaseous-stellar systems. The accumulation of a large number of white dwarfs in the Galactic halo is possible only if several specific conditions are simultaneously satisfied. We conclude that the presence of a rich white-dwarf population in the halo is unlikely.

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