| Apresentação/Painel: | |
| Autor: | Paulo César da Roche Poppe1,2 |
|
M. Faúndez-Abans3 |
|
|
V.A. Fernandes-Martin1,2 |
|
|
M. de Oliveira-Abans3 |
|
|
I.F. Fernandes3 |
|
| Instituição: | 1Departamento de Física UEFS - Feira de Santana |
| 2Observatório Astronômico Antares - Feira de Santana | |
| 3LNA/MCT - Itajubá | |
| Formato: | Painel |
| Título: | Longslit spectroscopy of the peculiar Seyfert 2 galaxy HRG 10103 |
| Resumo: | We present the first optical longslit spectroscopy for the galaxy HRG 10103, an Sa(r) type peculiar galaxy seen face-on with an asymmetrical elliptical structure. The aim of the current study is to describe the main properties of this object and also discuss possible evidences of gravitational interaction. The spectra obtained in two observatories (Gemini-South and OPD-MCT/LNA) includes some of the most important emission lines for ionization diagnostic. On the other hand, there are also observable spectral signatures that can reveal evidences of a recent starburst activity in the nuclear region. HRG 10103 is a Seyfert 2 galaxy with typical line-ratios values in the optical range. However, we also present a diagnostic involving the known intensity ratio R23 which appears to be very good criterion allowing to discriminate the Seyfert 2 from H II galaxies. We discuss the spectral analysis (reddening correction, AGN activity and kinematics), the stellar populations and the variation of emission-line rations as function of distance from the nucleus. We have estimated nuclear redshift of z = 0.038, corresponding to a heliocentric velocity of 11 560 ± 14 km s-1. The errors in the fluxes were mostly caused by uncertainties in the placement of the continuum level. Some other physical parameters have been derived whenever possible. The spectroscopic data reduction was carried out using the GEMINI. GMOS package as well as the standard IRAF procedures. |
OPD, SOAR e Gemini:
Passado, Presente e Futuro
Página inicial • Apresentaçães • Mesas Redondas • Paineis • Participantes
Índice de autores • Comitês • Galeria I • Galeria II • Galeria III • Apoio Financeiro