Revisiting the White Dwarf Luminosity Function from the Palomar-Green Survey
dc.contributor.editor | Castanheira, B. | |
dc.contributor.editor | Vanderbosch, Z. | |
dc.contributor.editor | Montgomery, M. | |
dc.creator | Bédard, A. | |
dc.creator | Bergeron, P. | |
dc.creator | Fontaine, G. | |
dc.date.accessioned | 2018-12-17T15:06:54Z | |
dc.date.available | 2018-12-17T15:06:54Z | |
dc.date.issued | 2018-07 | |
dc.description | The 21st European Workshop on White Dwarfs was held in Austin, TX from July 23rd to 27th of 2018 | en_US |
dc.description.abstract | 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 non-LTE model atmosphere calculations. We then compute an improved luminosity function of the Palomar-Green sample, including the DO stars for the first time, which allows us to study the variations in the numbers of hydrogen- and helium-atmosphere white dwarfs along a large part of the cooling sequence. We demonstrate that the so-called float-up model successfully explains the spectral evolution of the majority of white dwarfs. | en_US |
dc.description.department | Astronomy | en_US |
dc.identifier | doi:10.15781/T2TX35S7Q | |
dc.identifier.uri | http://hdl.handle.net/2152/71581 | |
dc.language.iso | eng | en_US |
dc.relation.ispartof | 21st European White Dwarf Workshop | en_US |
dc.rights.restriction | Open | en_US |
dc.subject | white dwarfs | en_US |
dc.subject | Palomar-Green survey | en_US |
dc.subject | luminosity function | en_US |
dc.title | Revisiting the White Dwarf Luminosity Function from the Palomar-Green Survey | en_US |
dc.type | Conference paper | en_US |