Astronomy and Astrophysics – Astrophysics
Scientific paper
Jun 1989
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989ap%26ss.156..283d&link_type=abstract
(Instituto de Astrofisica de Canarias and Comision Interministerial de Ciencia y Tecnologia, Summer School on Evolutionary Pheno
Astronomy and Astrophysics
Astrophysics
1
Astronomical Photometry, Barred Galaxies, Charge Coupled Devices, H Ii Regions, Southern Sky, Emission Spectra, H Alpha Line, H Beta Line, Image Processing, Luminosity
Scientific paper
CCD narrow band imagery of the southern barred spiral NGC 613 has been obtained in the light of H-alpha, H-beta, forbidden O III (5007 A), forbidden O II (3726+2gA), and continua at 3765, 5230, 6500 A. Absolute fluxes have been obtained for the lines H-beta and forbidden O III (5007 A) and continua at 5230 and 6500 A. Distribution of ages, monochromatic color vs absolute brightness, and forbidden O III/H-beta are discussed.
Copetti Marcus V. F.
Dottori Horácio Alberto
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