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V, R, I and Hα photometry of circumnuclear star-forming regions in four galaxies with different levels of nuclear activity |
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| Authors: | Angeles I. Dí az,Mar Á lvarez Á lvarez,Elena Terlevich,Roberto Terlevich,Miguel Sá nchez Portal, Itziar Aretxaga |
| Affiliation: | ;Departamento de Física Teórica, C-XI, Universidad Autónoma de Madrid, Cantoblanco, 28049 Madrid, Spain INAOE, Tonantzintla, Ap. Postal 51 y 216, Puebla, Mexico; Institute of Astronomy, Madingley Road, Cambridge CB3 0HA; LAEFF/INTA, PO Box 50727, 28080 Madrid, Spain |
| Abstract: | |
| Keywords: | H ii regions galaxies: active galaxies: nuclei galaxies: Seyfert galaxies: starburst |