189 citations · 620 across the 9 of their papers we have counts for
6 papers · 1 filter
The tidally disturbed luminous compact blue galaxy Mkn 1087 and its surroundings
Angel R. Lopez-Sanchez, Cesar Esteban, Monica Rodriguez
We present new broad-band optical and near-infrared CCD imaging together with deep optical intermediate-resolution spectroscopy of Mkn 1087 and its surrounding objects. We analyze…
A reappraisal of the chemical composition of the Orion nebula based on VLT echelle spectrophotometry
C. Esteban, M. Peimbert, J. Garcia-Rojas +3
We present VLT UVES echelle spectrophotometry of the Orion nebula in the 3100 to 10400 A range. We have measured the intensity of 555 emission lines, many of them corresponding to…
Carbon Nitrogen, and Oxygen Galactic Gradients: A Solution to the Carbon Enrichment Problem
L. Carigi, M. Peimbert, C. Esteban +1
Eleven models of Galactic chemical evolution, differing in the carbon, nitrogen,and oxygen yields adopted, have been computed to reproduce the Galactic O/H values obtained from H I…
Carbon and Oxygen Galactic Gradients: Observational Values from HII Region Recombination Lines
C. Esteban, J. Garcia-Rojas, M. Peimbert +4
We present results of deep echelle spectrophotometry of eight Galactic HII regions located at Galactocentric distances between 6.3 and 10.4 kpc. The data have been taken with the V…
IRAS 04000+5052: A not so compact, not so metal-poor HII region
Cesar Esteban, Luis Lopez-Martin, Angel R. Lopez-Sanchez +2
We present new observations of IRAS 04000+5052, a Galactic HII region associated with a young stellar cluster and possibly located at the Perseus arm. Contrary to previous claims,…
Chemical abundances of the Galactic H II region NGC 3576 derived from VLT echelle spectrophotometry
J. Garcia-Rojas, C. Esteban, M. Peimbert +3
We present echelle spectrophotometry of the Galactic H II region NGC 3576. The data have been taken with the VLT UVES echelle spectrograph in the 3100 to 10400 angstroms range. We…