189 citations · 381 across the 11 of their papers we have counts for
4 papers · 2 filters
The chemical composition of the Galactic regions M8 and M17. A revision based on deep VLT echelle spectrophotometry
J. Garcia-Rojas, C. Esteban, A. Peimbert +3
We present new echelle spectrophotometry of the Galactic H II regions M8 and M17. The data have been taken with the VLT UVES echelle spectrograph in the 3100 to 10400 angstroms ran…
The Calibration of the O/H Abundance Indicators for Extragalactic H II Regions Based on O II Recombination Lines
M. Peimbert, A. Peimbert, C. Esteban +5
Based on O II recombination lines we present a new calibration (called O II[RL]) of Pagel's O23 indicator to determine the O/H abundance ratio in extragalactic H II regions and emi…
Temperature Variations and Chemical Abundances in Planetary Nebulae
Manuel Peimbert, Antonio Peimbert
In this review we present a brief discussion on the observational evidence in favor of the presence of temperature variations, and conclude that many planetary nebulae show spatial…
Faint emission lines in the Galactic H II regions M16, M20 and NGC 3603
J. Garcia-Rojas, C. Esteban, M. Peimbert +4
We present deep echelle spectrophotometry of the Galactic {\hii} regions M16, M20 and NGC 3603. The data have been taken with the Very Large Telescope Ultraviolet-Visual Echelle Sp…