Astronomy and Astrophysics – Astrophysics
Scientific paper
Jan 1980
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980apjs...42...19z&link_type=abstract
Astrophysical Journal Supplement Series, vol. 42, Jan. 1980, p. 19-40.
Astronomy and Astrophysics
Astrophysics
416
Abundance, Globular Clusters, Interstellar Extinction, Milky Way Galaxy, Red Shift, Stellar Spectrophotometry, Electrophotometry, Metals, Tables (Data)
Scientific paper
Photoelectric photometry of the integrand light of globular clusters in selected filter passbands has been used to derive estimates of their interstellar reddenings and metal abundances (i.e., [Fe/H]). The uncertainties in these estimates average ±0.03 in E(B - V) and ±0.10 in [Fe/H], which are not much larger than the uncertainties in the estimates derived from the best methods that rely on observations of individual stars in the clusters. Seventy-nine globular clusters have been observed with our technique, which brings to 84 the total number of globular clusters with precise estimates of metal abundance.
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