| Texto completo | |
| Autor(es): |
Suffak, M. W.
;
Jones, C. E.
;
Tycner, C.
;
Henry, G. W.
;
Carciofi, A. C.
;
Mota, B. C.
;
Rubio, A. C.
Número total de Autores: 7
|
| Tipo de documento: | Artigo Científico |
| Fonte: | ASTROPHYSICAL JOURNAL; v. 890, n. 1, p. 13-pg., 2020-02-10. |
| Resumo | |
We model the circumstellar disk of delta Sco using the three-dimensional Monte Carlo radiative transfer code HDUST in order to quantify the large-scale changes in the disk through the years 2000-2018, and to see if these changes can be attributed to the secondary star affecting the disk throughout its orbit. We determine our best-fitting models through matching simulated observations to actual H alpha spectroscopy and V-band photometric observations. Our modeling results confirm previous findings that the disk of delta Sco was forming early in the century. We also find a period of disk dissipation when the companion is at apastron, as well as a significant growth of the disk between 2009 and 2011, prior to the periastron of 2011. Due to the steady-state nature of the disk after 2011, it is difficult to say whether the variations seen are due to the effect of the close passage of the binary companion. (AU) | |
| 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 |