| Texto completo | |
| Autor(es): |
Valentim, R.
;
Romero, A. D.
;
Kepler, S. .
;
Horvath, J. E.
;
Rangel, E. M.
;
Tremblay, PE
;
Gansicke, B
;
Marsh, T
Número total de Autores: 8
|
| Tipo de documento: | Artigo Científico |
| Fonte: | STARS WITH THE B[E] PHENOMENON, PROCEEDINGS; v. 509, p. 4-pg., 2017-01-01. |
| Resumo | |
White dwarf (WD) populations are analyzed using Bayesian tools, which allows inferring possible evolutionary paths through the study of the mass values. We employed a sample of 2761 DA white dwarf stars from the SDSS, and obtained the central mass values and their corresponding standard deviations using a bimodal population as an ansatz. The results indicate a population with M-1 = 0.60M(circle dot) and sigma(1) = 0.06M(circle dot), corresponding to a single stellar evolution, and a second population with M-2 = l.00M(circle dot) and sigma(1) = 0.11M(circle dot) possibly due to binary evolution resulting from mergers. (AU) | |
| Processo FAPESP: | 13/26258-4 - Matéria superdensa no universo |
| Beneficiário: | Manuel Máximo Bastos Malheiro de Oliveira |
| Modalidade de apoio: | Auxílio à Pesquisa - Temático |
| Processo FAPESP: | 16/08874-8 - 20th European White Dwarf Workshop |
| Beneficiário: | Rodolfo Valentim da Costa Lima |
| Modalidade de apoio: | Auxílio à Pesquisa - Reunião - Exterior |