Now showing items 1-3 of 3
25 years of using the spectroscopic method: where do we stand?
The spectroscopic technique, which consists in fitting high signal-to-noise optical spectra with the predictions of state-of-the-art model atmospheres, has routinely been used for over 25 years to measure the ...
Numerical simulations of the convective dilution process in helium-rich white dwarfs
DB and DBA white dwarfs are generally believed to be the result of a process by which a thin radiative hydrogen atmosphere floating in diffusive equilibrium on top of a helium envelope is eventually completely diluted ...
Revisiting the White Dwarf Luminosity Function from the Palomar-Green Survey
We present updated atmospheric parameters for all DA, DB, and DO white dwarfs in the complete sample of the Palomar-Green survey. In particular, we perform a spectroscopic analysis of the DO stars using our new set of ...