297 citations · 3.8k across the 71 of their papers we have counts for
71 papers
The DESIRED temperature-metallicity relations in star-forming regions: probing the Galactic radial and azimuthal metallicity distributions
I. Rafael Martínez-Hernández, J. Eduardo Méndez-Delgado, César Esteban +17
We analyse a sample of 225 star-forming regions from the DESIRED-E project, each with simultaneous determinations of the electron temperature from ionized nitrogen and oxygen, $T_{…
Temperature inhomogeneities in Mrk71 can not be discarded
J. Eduardo Méndez-Delgado, César Esteban, Jorge García-Rojas +2
In a very recent work, [1] claim that the scenario of temperature inhomogeneities proposed by [2] ( > 0) is not able to explain the O/H abundance discrepancy obser…
Density biases and temperature relations for DESIRED HII regions
J. E. Méndez-Delgado, C. Esteban, J. García-Rojas +6
We present a first study based on the analysis of the DEep Spectra of Ionized REgions Database (DESIRED). This is a compilation of 190 high signal-to-noise ratio optical spectra of…
Temperature inhomogeneities cause the abundance discrepancy in H II regions
J. Eduardo Méndez-Delgado, César Esteban, Jorge García-Rojas +2
HII regions, ionized nebulae where massive star formation has taken place, exhibit a wealth of emission lines that are the fundamental basis for estimating the chemical composition…
Chemical abundances in 7 metal-poor HII regions and a determination of the primordial helium abundance
Mabel Valerdi, Antonio Peimbert, Manuel Peimbert
We conducted a long-slit spectrophotometry analysis to obtain the chemical abundances of seven metal-poor HII regions in three galaxies: UM 160, UM 420, and TOL 0513-393. The data…
The ADF and the t formalism in H II regions based on the upper mass limit of the IMF for the MW
L. Carigi, A. Peimbert, M. Peimbert +1
We study in depth the abundance discrepancy problem in H II regions, this time from a different perspective than the usual one: by studying the effect of the upper mass limit (M$_{…