Spectral synthesis aided by the H-R diagram - The open cluster M 11

Details Spectral synthesis aided by the H-R diagram - The open cluster M 11 Spectral synthesis aided by the H-R diagram - The open cluster M 11

Apr 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990pasp..102..454s&link_type=abstract

Astronomical Society of the Pacific, Publications (ISSN 0004-6280), vol. 102, April 1990, p. 454-462. Research supported by CNPq

Astronomy and Astrophysics

Astrophysics

8

Astronomical Spectroscopy, Hertzsprung-Russell Diagram, Open Clusters, Absorption Spectra, Color-Magnitude Diagram, Main Sequence Stars, Stellar Spectra

Scientific paper

The integrated spectrum of the rich open cluster M 11 was synthesized with a library of stellar spectra. The availability of a significant number of stars in a color-magnitude diagram (CMD) allows for the study of the missing fainter stellar component by means of an integrated light synthesis technique. The CMD-aided synthesis tests, carried out with the integrated spectrum of M 11, confirm the necessity for astrophysically plausible constraints to be used in conjunction with fitting algorithms in population syntheses. These tests are particularly relevant for the population syntheses of more complex objects like galaxy nuclei, when stellar libraries are used.

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