114 citations · 1k across the 101 of their papers we have counts for
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The softness diagram for MaNGA star-forming regions: diffuse ionized gas contamination or local HOLMES predominance?
Enrique Pérez-Montero, Igor Zinchenko, José M. Vílchez +3
We explore the so-called softness diagram -- whose main function is to provide the hardness of the ionizing radiation in star-forming regions -- in order to check whether hot and o…
Chemical abundances in the dwarf galaxy NGC 4163 based on the nebular and auroral emission lines
I. A. Zinchenko, L. S. Pilyugin
We constructed an oxygen abundance map and N/O ratio map of the unusually low excitation dwarf irregular galaxy NGC 4163 based on publicly available spectroscopy obtained by the Ma…
Metal-THINGS: The association and optical characterization of SNRs with HI holes in NGC 6946
M. A. Lara-Lopez, L. S. Pilyugin, J. Zaragoza-Cardiel +9
NGC~6946, also known as the `Fireworks' galaxy, is an unusual galaxy that hosts a total of 225 supernova remnant (SNR) candidates, including 147 optically identified with high [SII…
Calibration-based abundances in the interstellar gas of galaxies from slit and IFU spectra
Pilyugin L. S., Lara-Lopez M. A., Vilchez J. M. +3
In this work we make use of available Integral Field Unit (IFU) spectroscopy and slit spectra of several nearby galaxies. The pre-existing empirical R and S calibrations for abunda…
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…
Mass-Metallicity and Star Formation Rate in Galaxies: a complex relation tuned to stellar age
S. Duarte Puertas, J. M. Vilchez, J. Iglesias-Páramo +5
In this work we study the stellar mass -- metallicity relation (MZR) of an extended sample of star-forming galaxies in the local Universe and its possible dependence with the star…