51 citations · 87 across the 3 of their papers we have counts for
3 papers
astro-ph.GA2022★ 12 cited
Chemical abundance of LINER galaxies -- Metallicity calibrations based on SDSS-IV MaNGA
C. B. Oliveira, A. C. Krabbe, J. A. Hernandez-Jimenez +5
The ionizing source of Low Ionization Nuclear Emission Regions (LINERs) is uncertain. Because of this, an empirical relation to determine the chemical abundances of these objects h…
astro-ph.GA2022★ 24 cited
Chemical abundances in Seyfert galaxies -IX. Helium abundance estimates
O. L. Dors, M. Valerdi, P. Freitas-Lemes +7
For the first time, the helium abundance relative to hydrogen (He/H), which relied on direct measurements of the electron temperature, has been derived in the narrow line regions (…
astro-ph.GA2020★ 51 cited
Chemical abundances of Seyfert 2 AGNs II. N2 metallicity calibration based on SDSS
S. P. Carvalho, O. L. Dors, M. V. Cardaci +6
We present a semi-empirical calibration between the metallicity () of Seyfert 2 Active Galactic Nuclei and the =log([N II]6584/H) emission-line intensity ratio. This c…