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19992023
most citedOxygen and nitrogen abundances in nearby galaxies. Correlations between oxygen abundance and macroscopic properties

313 citations · 5.3k across the 116 of their papers we have counts for

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37 papers · 1 filter

astro-ph2007

A 3D Study of Combined Density and Temperature Fluctuations in Gaseous Nebulae I: Theory

Michael Taylor, Jose Manuel Vilchez

This draft (in preparation) has been withdrawn so as to be combined with its second part (work also in preparation), to produce a single paper, that includes further analysis and r…

astro-ph2007★ 73 cited

The interplay between ionized gas and massive stars in the HII galaxy IIZw70: integral field spectroscopy with PMAS

C. Kehrig, J. M. Vilchez, S. F. Sanchez +3

We performed an integral field spectroscopic study for the HII galaxy IIZw70 in order to investigate the interplay between its ionized interstellar medium (ISM) and the massive sta…

astro-ph2007

Exact solutions for the populations of the n-level ion

Michael Taylor, Jose Manuel Vilchez

We present a matrix solution to the full equations of statistical equilibrium that give the energy level populations of collisionally-excited ions in photoionised gaseous nebulae.…

astro-ph2007★ 54 cited

On the metallicity dependence of the 24micron luminosity as a star formation tracer

M. Relano, U. Lisenfeld, P. G. Perez-Gonzalez +2

We investigate the use of the rest-frame 24microns luminosity as an indicator of the star formation rate (SFR) in galaxies with different metallicities by comparing it to the (exti…

astro-ph2007★ 127 cited

The metallicity gradient of M 33: chemical abundances of HII regions

L. Magrini, J. M. Vilchez, A. Mampaso +2

We present spectroscopic observations of a sample of 72 emission-line objects, including mainly HII regions, in the spiral galaxy M 33. Spectra were obtained with the multi-object,…

astro-ph2007★ 78 cited

On the maximum value of the cosmic abundance of oxygen and the oxygen yield

L. S. Pilyugin, T. X. Thuan, J. M. Vilchez

We search for the maximum oxygen abundance in spiral galaxies. Because this maximum value is expected to occur in the centers of the most luminous galaxies, we have constructed the…