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The radial abundance gradient of oxygen towards the Galactic anticentre
C. Esteban, X. Fang, J. Garcia-Rojas +1
We present deep optical spectroscopy of eight HII regions located in the anticentre of the Milky Way. The spectra were obtained at the 10.4m GTC and 8.2m VLT. We determined Te([NII…
Spatial distribution of carbon and oxygen abundances in the Magellanic Clouds
L. Toribio San Cipriano, C. Esteban, G. Domínguez-Guzmán +1
We present chemical abundances of carbon and oxygen in the Large and Small Magellanic Clouds from optical spectra of H II regions. We analyse the behaviour of the O/H, C/H and C/O…
Carbon and oxygen in HII regions of the Magellanic Clouds: abundance discrepancy and chemical evolution
L. Toribio San Cipriano, G. Domínguez-Guzmán, C. Esteban +5
We present C and O abundances in the Magellanic Clouds derived from deep spectra of HII regions. The data have been taken with the Ultraviolet-Visual Echelle Spectrograph at the 8.…
Carbon and oxygen abundance gradients in NGC300 and M33 from optical recombination lines
L. Toribio San Cipriano, J. García-Rojas, C. Esteban +2
We present deep spectrophotometry of several Hii regions in the nearby low-mass spiral galaxies NGC 300 and M33. The data have been taken with UVES and OSIRIS spectrographs attache…