On the Formation of DA White Dwarfs with low Hydrogen Contents: Preliminary Results

M. M. MILLER BERTOLAMI; ALTHAUS, L. G.; CORSICO, A.

Workshop; 20th European White Dwarf Workshop; 2016

Systematic photometric and asteroseismological studies in the last decade support the belief that white dwarfs in the solar neighborhood harbor a broad rangeof hydrogen-layer contents. The reasons behind this spread of hydrogen-layer masses are not understood and usually misunderstood. In this work we present, andreview, the different mechanisms that can (or cannot) lead to the formation of white dwarfs with a broad range hydrogen contents.