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- W107179967 abstract "The 15.4-day cepheid AV Sgr has been suggested as a possible member of the open cluster NGC 6546. In order to investigate this possibility, we obtained new spectroscopic, radial velocity, and photometric data at Cerro Tololo Inter-American Observatory. From these data we find a distance to the cluster of 1.20 :1: 0.12 kpc, considerable differential reddening with a mean color excess = 0.72 :1: 0.14 (s.d.), and earliest spectral type B2. This places it on the outer edge of the - I spiral arm. From similar data for AV 8gr we find a distance of 2.20 :1: 0.25 kpc and excess = 1.37 s.d. :1: 0.03, leading us to conclude that it cannot be a member. Key words: cepheid-open cluster- UB V photometry-spectra-radial velocity" @default.
- W107179967 created "2016-06-24" @default.
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- W107179967 date "1978-12-01" @default.
- W107179967 modified "2023-09-26" @default.
- W107179967 title "Study of the open cluster NGC 6546 and cepheid AV Sgr." @default.
- W107179967 doi "https://doi.org/10.1086/130423" @default.
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