| Autor(es): |
Silaj, J.
;
Jones, C. E.
;
Carciofi, A. C.
;
Escolano, C.
;
Tycner, C.
;
Sigut, TAA
;
Jones, CE
Número total de Autores: 7
|
| Tipo de documento: | Artigo Científico |
| Fonte: | BRIGHT EMISSARIES: BE STARS AS MESSENGERS OF STAR-DISK PHYSICS; v. 506, p. 4-pg., 2016-01-01. |
| Resumo | |
48 Librae is a well-known Be shell star that exhibits spectacular cyclic V/R asymmetries in its Balmer emission lines. In this work, we use the HDUST code to investigate the disk density structure required to produce this signature. By modelling one representative Ha profile, we obtain the two initial densities required to match each peak, and from this we infer the average initial disk density. Furthermore, we investigate the parameters of the central star by modelling the SED, and we constrain the inclination angle of the system with polarization measurements. We find 48 Lib is best represented by a B3V central star surrounded by a very dense disk with an average initial density of 1.1 x 10(-10) g cm(-3), and that the system is oriented at 85. (AU) | |
| Processo FAPESP: | 11/17930-5 - Um estudo das propriedades de estrelas O e Be |
| Beneficiário: | Cyril Escolano |
| Modalidade de apoio: | Bolsas no Brasil - Pós-Doutorado |
| Processo FAPESP: | 09/54006-4 - Um cluster de computadores para o Departamento de Astronomia do IAG-USP e para o Núcleo de Astrofísica da UNICSUL |
| Beneficiário: | Elisabete Maria de Gouveia Dal Pino |
| Modalidade de apoio: | Auxílio à Pesquisa - Programa Equipamentos Multiusuários |