205 citations · 399 across the 19 of their papers we have counts for
3 papers · 1 filter
Relation between activity, morphology and environment for a large sample of SDSS galaxies
R. A. Ortega-Minakata, J. P. Torres-Papaqui, H. Andernach +2
We apply a stellar population synthesis code to the spectra of a large sample of SDSS galaxies to classify these according to their activity (using emission-line diagnostic diagram…
Low Luminosity AGN candidates in SDSS
J. P. Torres-Papaqui, R. Coziol, J. M. Islas-Islas +2
In a sample of 476931 NELGs obtained from the SDSS DR5 data we find that in 22% of the galaxies the emission line [OIII]5007, H, or both, are missing. The nature of the activ…
The signature of LLAGNs in the nearby universe
D. M. Neri-Larios, J. P. Torres-Papaqui, R. Coziol +2
We have used the diagnostic diagram that compares the ratio of emission lines [NII]\lambda6584/Hαwith the equivalent width of [NII]6584, as proposed by Coziol et al. (1998), to…