Chemical abundances in the outer Milky Way.
New spectroscopic observations have been obtained for a sample of H II regions located toward the galactic anticentre region. The sample includes H II regions with known galactocentric distances, having their ionising stars clearly identified from previous work. The spectra correspond to low- to intermediate-excitation nebulae, ionised by one (few)
Vílchez, J. M. et al.
Fecha de publicación:
0
1995