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Recent star formation in very luminous infrared galaxies | | A. Bressan
; B. Poggianti
; A. Franceschini
; | | Date: |
12 Mar 2001 | | Subject: | astro-ph | | Affiliation: | Osservatorio Astronomico di Padova,IT), B. Poggianti (Osservatorio Astronomico di Padova,IT), A. Franceschini (Dipartimento di Astronomia, Universita’ di Padova, IT | | Abstract: | Among star forming galaxies, a spectral combination of a strong Hdelta line in absorption and a moderate [OII] emission has been suggested to be a useful method to identify dusty starburst galaxies at any redshift, on the basis of optical data alone. On one side it has been shown that such a spectral particularity is indeed suggestive of obscured starburst galaxies but, on the other, the degeneracy of the optical spectrum has hindered any quantitative estimate of the star formation and extinction during the burst. The optical spectrum by itself, even complemented with the information on the far-IR flux, is not enough to identify univocal evolutionary patterns. We discuss in the following whether it is possible to reduce these uncertainties by extending the spectral analyses to the near infrared spectral region. | | Source: | arXiv, astro-ph/0103167 | | Services: | Forum | Review | PDF | Favorites | |
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