Feeding the active nucleus of NGC 1097
Astrophysics
2007-05-23 v1
Abstract
We discuss the signatures of an evolving accretion disk around the nucleus of NGC 1097, based on observations of its double-peaked H-alpha emission-line profile which cover a time span of 10 yrs. The monitoring of the profile has allowed us to better constrain the inner radius of the accretion disk, and to propose a scenario in which the ionizing source is getting dimmer and making the peak of the disk emissivity to drift inwards.
Keywords
Cite
@article{arxiv.astro-ph/0211477,
title = {Feeding the active nucleus of NGC 1097},
author = {Thaisa Storchi-Bergmann and Rodrigo Nemmen da Silva and Michael Eracleous},
journal= {arXiv preprint arXiv:astro-ph/0211477},
year = {2007}
}
Comments
2 pages, 1 figure, to appear in the proceedings of the conference Star Formation through Time, Granada, Sep. 2002, ASP Eds. Perez, Gonzalez Delgado and Tenorio Tagle