116 citations · 364 across the 13 of their papers we have counts for
12 papers
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…
Revisiting the radial abundance gradients of nitrogen and oxygen of the Milky Way
C. Esteban, J. Garcia-Rojas
We present spectra obtained with the 10.4 m Gran Telescopio Canarias telescope of 13 Galactic HII regions, most of them of very low ionisation degree. The objects are located along…
The abundances of O, N, S, Cl, Ne, Ar, and Fe in H II regions of the Magellanic Clouds
G. Domínguez-Guzmán, M. Rodríguez, C. Esteban +1
We use very deep spectra obtained with the Ultraviolet-Visual Echelle Spectrograph in the Very Large Telescope in order to determine the physical conditions, the chemical abundance…
Study on the Abundance Discrepancy Problem in the Magellanic Clouds
L. Toribio San Cipriano, C. Esteban, G. Domínguez-Guzmán +1
We present chemical abundances of carbon (C) and oxygen (O) in the Large and Small Magellanic Clouds from deep and high-quality optical spectra of HII regions. The data have been t…
Ring Nebulae: Tracers of the CNO Nucleosynthesis
A. Mesa-Delgado, C. Esteban, J. García-Rojas
Preliminary results are presented from spectroscopic data in the optical range of the Galactic ring nebulae NGC 6888, G2:4+1:4, RCW 58 and Sh2-308. Deep observations with long expo…
Carbon abundances and radial gradients in NGC300 and other nearby spiral galaxies
L. Toribio San Cipriano, J. García-Rojas, C. Esteban
We present preliminary results of deep echelle spectrophotometry of a sample of HII regions along the disk of the Scd galaxy NGC300 obtained with the Ultraviolet and Visual Echelle…