Titlebook: White Dwarfs: Cosmological and Galactic Probes; Edward M. Sion,Stéphane Vennes,Harry L. Shipman Book 2005 Springer Science+Business Media

BULLY

Cool Halo White Dwarfs from GSCIIenheimer et al. (2001) result is also provided. The local space density estimated from the two independent samples is about ∼ 10 .M⊙pc . and is consistent with the canonical local mass density of the halo WDs.

Lumbar-Spine

The White Dwarf Population in the 2QZ and Sloan Surveysotometric and 2QZ spectroscopic data sets. Our main objectives are to measure the scale-height and luminosity function of the population, determine its formation history and examine evidence for spectral evolutionary effects.

antedate

Incorporate

冒烟

Surveys for Double Degenerate Progenitors of Supernovae Type Iaf the progenitor systems and to perform an observational test of the DD scenario supernovae of type Ia. We explain how parameters of the binaries can be derived from various methods. Results for a sample of DDs are presented and discussed.

Generic-Drug

White Dwarfs in Cataclysmic Variables: Probes of Accretion Historys that are linked to the magnetic fields and the ages of the white dwarfs. Identifying these parameters allows us to obtain clues about how the evolution of single white dwarfs differs from those in close binary environments and how the cooling sequence is affected by the mass transfer.

hidebound

铁塔等

decode

蚀刻术

Number Counts of White Dwarfs: The Impact of GAIAclude, among others, a reliable determination of the age of our galactic disk, a better knowledge of the structure of the halo of the Milky Way or the reconstruction of the past history of the Star Formation Rate of the galactic disk.