Open AccessIntegrated spectral evolution of Galactic open clusters
Author(s) -
Piatti Andrés E.,
Bica Eduardo,
Clariá Juan J.,
Santos João F. C.,
Ahumada Andrea V.
Publication year - 2002
Publication title -
monthly notices of the royal astronomical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.058
H-Index - 383
eISSN - 1365-2966
pISSN - 0035-8711
DOI - 10.1046/j.1365-8711.2002.05630.x
Subject(s) - physics , astrophysics , metallicity , open cluster , galaxy , spectral line , star cluster , cluster (spacecraft) , astronomy , population , spectral resolution , template , stellar population , range (aeronautics) , galaxy cluster , noise (video) , star formation , stars , nanotechnology , demography , materials science , image (mathematics) , artificial intelligence , sociology , computer science , composite material , programming language
We present a library of 47 open‐cluster integrated spectra, mostly obtained at CASLEO (San Juan, Argentina) in the range 3600 < λ < 7400 Å , which are made available at CDS. The data are combined with previous spectra to obtain 10 high signal‐to‐noise ratio basic templates in the young and intermediate‐age domains, which are also provided in the library. These Galactic disc templates represent the increased time resolution spectral evolution of a stellar population unit around the Solar metallicity level. The improved signal‐to‐noise ratio of the present templates with respect to previous template lists, together with their increased time resolution, allowed us to improve the fundamental parameters of some open clusters. The present spectral library will be useful for several astrophysical applications, particularly for population syntheses of star‐forming giant galaxies.