65 citations · 284 across the 7 of their papers we have counts for
7 papers
C/O ratios in planetary nebulae with dual-dust chemistry from faint optical recombination lines
J. García-Rojas, G. Delgado-Inglada, D. A. García-Hernández +4
We present deep high-resolution (R~15,000) and high-quality UVES optical spectrophotometry of nine planetary nebulae with dual-dust chemistry. We compute physical conditions from s…
Photoionization models of the CALIFA HII regions. I. Hybrid models
C. Morisset, G. Delgado-Inglada, S. F. Sánchez +7
Photoionization models of HII regions require as input a description of the ionizing SED and of the gas distribution, in terms of ionization parameter U and chemical abundances (e.…
The Fe/Ni ratio in ionized nebulae: clues on dust depletion patterns
Gloria Delgado-Inglada, Adal Mesa-Delgado, Jorge García-Rojas +2
We perform a homogeneous analysis of the Fe/Ni abundance ratio in eight Galactic planetary nebulae (PNe) and three Galactic H II regions that include the Orion nebula, where we stu…
S-process enrichment in the planetary nebula NGC 3918. Results from deep echelle spectrophotometry
J. García-Rojas, S. Madonna, V. Luridiana +4
(Abridged) The chemical content of the planetary nebula NGC 3918 is investigated through deep, high-resolution UVES at VLT spectrophotometric data. We identify and measure more tha…
Analysis of chemical abundances in planetary nebulae with [WC] central stars. II. Chemical abundances and the abundance discrepancy factor
J. Garcia-Rojas, M. Peña, C. Morisset +3
(Abridged) We present the abundance analysis of 12 PNe ionized by [WC]-type stars and wels obtained from high-resolution spectrophotometric data. Our main aims are to determine the…
C/O Abundance Ratios and Dust Features in Galactic Planetary Nebulae
G. Delgado-Inglada, M. Rodríguez
The iron depletion factors found in Galactic planetary nebulae (PNe) span over two orders of magnitude, suggesting that there are differences in the grain formation and destruction…