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The Starburst-AGN connection in ultraluminous infrared galaxies

Published online by Cambridge University Press:  01 December 2004

G. Risaliti
G. Risaliti
Affiliation:
Harvard-Smithsonian Center for Astophysics, 60 Garden St, Cambridge, MA 02138, USA INAF – Osservatorio Astrofisico di Arcetri, L.go E. Fermi 5, 50125 Firenze, Italy
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Abstract

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We present the results of L-band spectroscopic observations of local bright ULIRGs, performed with ISAAC at VLT. The excellent sensitivity of the telescope and instrument provided spectra of unprecedented quality for this class of objects, which allowed a detailed study of the relative AGN/starburst contribution to the energy output, and of the composition of the circumnuclear absorber. A new mid-infrared diagnostic diagram is proposed, in which starbursts and AGNs are clearly separated.To search for other articles by the author(s) go to: http://adsabs.harvard.edu/abstract_service.html

Type
POSTERS
Information
Proceedings of the International Astronomical Union , Volume 2004 , Issue IAUS222 , March 2004 , pp. 361 - 362
Copyright
© 2004 International Astronomical Union