Bibcode
García-Rojas, J.; Esteban, C.; Peimbert, A.; Peimbert, M.; Simon-Díaz, S.; Rodríguez, M.; Ruiz, M. T.; Herrero, A.
Bibliographical reference
II International GTC Workshop: Science with GTC 1st-light Instruments and the LMT (Eds. A. M. Hidalgo-Gámez, J. J. González, J. M. Rodríguez Espinosa, and S. Torres-Peimbert) Revista Mexicana de Astronomía y Astrofísica (Serie de Conferencias) Vol. 24, pp. 243-244 (2005) (http://www.astroscu.unam.mx/~rmaa/)
Advertised on:
12
2005
Citations
1
Refereed citations
1
Description
We present preliminary results on the analysis of very deep echelle UVES
(8m VLT) spectra of the Galactic H II region S311 (NGC 2467) located
outside the Solar circle. The data cover from 3100 to 10450 Å with
a resolution R ~ 8800. We have detected and measured more than 300
emission lines, some of them are faint recombination lines of
heavy-element ions. We have derived the O abundances from OI and OII
recombination lines and the C abundance from CII lines and an Ionization
Correction Factor (ICF). This kind of observations will permit us to
derive the Galactic abundance gradient of C and O from nebular
recombination lines, which are almost independent on the real
temperature structure of the nebula.