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Proceedings Paper

Spectromorphology: quantitative multiwavelength classification of galaxies
Author(s): Denis Burgarella; Sebastian Lauger; Veronique Buat
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Paper Abstract

In this paper, we show that the determination of the morphological type could be difficult when we observe galaxies in the rest-frame ultraviolet. This could be crucial as soon as we wish to study galaxies at redshifts beyond z~1 since the visible wavelength range corresponds to the rest-frame ultraviolet. In order to address the problem of performing a morphological analysis on a large number of galaxies as the very large samples that will be secured by GALEX, SLOAN, ASTRO-F in the near- to mid-term and from NGST, ALMA and ELT's later on, we need to define a simple quantitative and automatic method. We propose a quantitative multi-wavelength classification that would take into account the various stellar populations lying in the observed galaxies. This method makes use of multi-wavelength data but such databases are already needed to estimate the distance through photometric redshifts. SpectroMorphology allows to perform an automatic analysis of the nature of galaxies.

Paper Details

Date Published: 13 February 2003
PDF: 8 pages
Proc. SPIE 4834, Discoveries and Research Prospects from 6- to 10-Meter-Class Telescopes II, (13 February 2003); doi: 10.1117/12.457602
Show Author Affiliations
Denis Burgarella, Observatoire Astronomique Marseille-Provence (France)
Sebastian Lauger, Observatoire Astronomique Marseille-Provence (France)
Veronique Buat, Observatoire Astronomique Marseille-Provence (France)

Published in SPIE Proceedings Vol. 4834:
Discoveries and Research Prospects from 6- to 10-Meter-Class Telescopes II
Puragra Guhathakurta, Editor(s)

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