Intermediate Band Photometry of the Open Cluster NGC3114
Author(s) -
E. G. Schmidt
Publication year - 1982
Publication title -
publications of the astronomical society of the pacific
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.294
H-Index - 172
eISSN - 1538-3873
pISSN - 0004-6280
DOI - 10.1086/130973
Subject(s) - blue straggler , physics , stars , astrophysics , photometry (optics) , open cluster , pleiades , astronomy , distance modulus , star cluster
Four-color and Hβ photometry has been obtained of 33 stars in the southern galactic cluster NGC 3114. This cluster contains many interesting stars including blue stragglers, red giants, and stars with spectral peculiarities. The distance modulus was found to be V0 - Mυ = 10.26 which corresponds to 1130 pc. The color excess is E(b - y) = 0.m060. The cluster appears to be slightly older than the Pleiades. There are two extreme blue stragglers and six additional stars which might be considered milder cases of the same phenomenon. The distance moduli of the stars with peculiar spectra and the blue stragglers inferred from the photometry agree with those of the normal cluster stars and we conclude that this strengthens the view that the photometric indices of such stars are not affected significantly by their peculiarities.
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