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A method to derive velocity dispersions from composite spectra

Published online by Cambridge University Press:  07 August 2017

R.E. de Souza ,
B. Barbuy ,
S. dos Anjos  and
M. Erdelyi-Mendes
R.E. de Souza
Affiliation:
IAG-USP, Depto. Astronomia C.P. 9638, SÃo Paulo 01065, Brazil
B. Barbuy
Affiliation:
IAG-USP, Depto. Astronomia C.P. 9638, SÃo Paulo 01065, Brazil
S. dos Anjos
Affiliation:
IAG-USP, Depto. Astronomia C.P. 9638, SÃo Paulo 01065, Brazil
M. Erdelyi-Mendes
Affiliation:
IAG-USP, Depto. Astronomia C.P. 9638, SÃo Paulo 01065, Brazil

Extract

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Different methods have been used to derive velocity dispersions of stellar populations in bulges of galaxies. In all cases, the spectrum of a K giant is used as template: the stellar spectrum convolved with the appropriate gaussian, the Fourier transform technique, or the cross-correlation technique (see Dalle Ore et al., 1991, for a review).

Type
Poster Papers
Information
Symposium - International Astronomical Union , Volume 149: The Stellar populations of Galaxies , 1992 , pp. 489
Copyright
Copyright © Kluwer 

References

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