August 11-15, 2014


Removing "Plateau" from Hot White Dwarf Luminosity Functions

Jurek Krzesinski (Pedagogical University of Cracow)

Santiago Torres (2,3), Enrique Garcia-Berro (2,3) 2) Departament de Fisica Aplicada, Universitat Politecnica de Catalunya, c/Esteve Terrades, 5, 08860 Castelldefels, Spain 3) Institute for Space Studies of Catalonia, c/Gran Capita 2--4, Edif. Nexus 104, 08034 Barcelona, Spain

Several years after the observed hot white dwarf (WD) luminosity function (LF) was published, the problem of the plateau in the DA LF was solved (Torres et all 2014). The apparent cause of the plateau was a population of low mass WDs which had not been completely removed from the WD sample. In this work we present the observed hot all-WD LF, DA, and non-DA LFs calculated after excluding WDs with masses below 0.49 Mo, as well as the corrected DA to non-DA WD ratio.

Mode of presentation: poster