The signature of LLAGNs in the nearby universe

Autor:	Neri-Larios, D. M., Torres-Papaqui, J. P., Coziol, R., Islas-Islas, J. M., Ortega-Minakata, R. A.
Rok vydání:	2010
Předmět:	Astrophysics - Galaxy Astrophysics Astrophysics - Cosmology and Extragalactic Astrophysics
Druh dokumentu:	Working Paper
Popis:	We have used the diagnostic diagram that compares the ratio of emission lines [NII]\lambda6584/H\alpha with the equivalent width of [NII]$\lambda$6584, as proposed by Coziol et al. (1998), to determine the source of ionization of SDSS NELGs that cannot be classified by standard diagnostic diagrams, because the emission line [OIII]$\lambda$5007, H\beta, or both, are missing. We find these galaxies to be consistent with low luminosity AGNs, suggesting that this characteristic is the signature of the LLAGNs in the nearby Universe. Comment: 8 pages, 2 figures, to appear in XIII Latin American Regional IAU Meeting
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1011.4595 Zobrazit plný text záznamu View this record from Arxiv