Análisis de quasares aislados y en interacción en el relevamiento SDSS-DR7

DONOSO, L.; GARCÍA LAMBAS, D.; COLDWELL, G.; ALONSO, M. V.

San Juan

Congreso; 54ª Reunión de la Asociación Argentina de Astronomía; 2011

ICATE

We analize a quasar (QSO) sample from the Sloan Digital Sky Survey DR7. The galaxy formation models report that the feed and activity in black holes are related to galaxy interactions. Taking into account this picture, we study the spectral line properties in QSOs and their relation with the galaxy inter- action. We use a QSO sample with nearby interacting galaxies and another one with isolated QSOs. We study the equivalent width in several spectral lines in these QSOs. We find systematic differences in some of the lines in QSOs which interact with galaxies. We discuss these preliminary results in the framework of galaxy formation models with black holes in the central part of the galaxies.