We study the physical properties of the ionized gas in local discs using the sample of 38
nearby∼ 108.5–11.2 M⊙ Star-Forming Main-Sequence (SFMS) galaxies observed so far as …

Spiral arms serve crucial purposes in star formation and galaxy evolution. In this paper, we
report the identification of" A2744-DSG-z3," a dusty, multiarm spiral galaxy at z= 3.059 using …

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 …

We analyse the validity of optical diagnostic diagrams relying on emission-lines ratios and in
the context of classifying Active Galactic Nuclei (AGNs) according to the cosmic metallicity …

We present a study of the excitation conditions and metallicity of ionized gas (Z gas) in eight
nearby barred and unbarred spiral galaxies from the VIRUS-P Exploration of Nearby …

We present a direct determination of the stellar metallicity in the close pair galaxy NGC 4038
(D= 20 Mpc) based on the quantitative analysis of moderate-resolution KMOS/Very Large …

In this paper, we derive oxygen abundance gradients from H ii regions located in 11
galaxies in eight systems of close pairs. Long-slit spectra in the range 4400–7300 Å were …

We present an observational study about the impacts of the interactions on the electron
density of H ii regions located in seven systems of interacting galaxies. The data consist of …

Numerical simulations of minor mergers predict little enhancement in the global star
formation activity. However, it is still unclear the impact they have on the chemical state of …

We report the results of the first spectroscopic study of the galaxy HRG 705, which belongs
to the Solitaire class of peculiar (collisional) Ring Galaxies, which, in turn, are little studied …