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- W2289074531 abstract "We have identified the four most significant features in the UV velocity distribution of solar neighborhood stars: H1, H2 in the Hercules stream and W1, W2 in the Wolf 630 stream. We have formulated the problem of determining several characteristics of the central Galactic bar independently from each of the identified features by assuming that the Hercules and Wolf 630 streams are of a bar-induced dynamical nature. The problem has been solved by constructing 2:1 resonant orbits in the rotating bar frame for each star in these streams. Analysis of the resonant orbits found has shown that the bar pattern speed is 45-55 km/s/kpc, while the bar angle lies within the range 40-60 degrees. The results obtained are consistent with the view that the Hercules and Wolf 630 streams could be formed by a long-term influence of the Galactic bar leading to a characteristic bimodal splitting of the UV velocity plane." @default.
- W2289074531 created "2016-06-24" @default.
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- W2289074531 date "2016-04-01" @default.
- W2289074531 modified "2023-10-05" @default.
- W2289074531 title "Hercules and Wolf 630 stellar streams and galactic bar kinematics" @default.
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- W2289074531 doi "https://doi.org/10.1134/s1063773716040010" @default.
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