Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 1981
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981rmxaa...6..321r&link_type=abstract
(International Astronomical Union, Reunion Regional Latinoamericana de Astronomia, 2nd, Merida, Venezuela, Jan. 19-23, 1981) Rev
Astronomy and Astrophysics
Astronomy
Astronomical Photography, Light Emission, Magellanic Clouds, Nebulae, Bandpass Filters, Bandwidth, Galactic Evolution, H Alpha Line, Velocity Distribution, Wolf-Rayet Stars
Scientific paper
A photographic survey of ring-shaped nebulae in the LMC, performed with narrow band interference filters in H-alpha and forbidden Si II, permits determination of their mean forbidden Si II/H-alpha line-ratios. This information, together with the velocity dispersion obtained from FP interferograms and the knowledge of their stellar content, allow an overall view of these regions and of their probable origin. Some specific nebulae are discussed.
Georgelin Y. M.
Monnet Guy
Rosado Margarita
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