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An Objective Approach to Spectral Classification

Published online by Cambridge University Press:  25 May 2016

A.J. Connolly  and
A.S. Szalay
A.J. Connolly
Affiliation:
Johns Hopkins University
A.S. Szalay
Affiliation:
Johns Hopkins University

Extract

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The next generation of spectroscopic surveys, both Galactic and extra-galactic (e.g., SDSS, 2dF), present the challenge of classifying spectra in an efficient and objective manner. The standard approach to this problem has been to visually classify spectra based on a number of spectral features (e.g., the equivalent widths of emission lines). The size of new spectral surveys (> 106 galaxies) and the desire to compare the luminosity and environments of galaxies with their spectral properties make these techniques infeasible. We describe here an automated classification scheme that is being developed for the SDSS.

Type
Part 7. Data Processing Techniques
Information
Symposium - International Astronomical Union , Volume 179: New Horizons from Multi-Wavelength Sky Surveys , 1998 , pp. 376 - 378
Copyright
Copyright © Kluwer 1998 

References

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