Mass of Open Cluster NGC 7789
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Abstract
Mass of open cluster NGC 7789 in the Galaxy is determined by three methods: the photometric method based on mass-luminosity relations of stars in the cluster Mpho=7712.5M⊙; the dynamical method based on virial theorem Mvir=6996.1M⊙; and the tidal radius method based on the interaction between the cluster and the Galaxy Mtid=5152.5M⊙. The mean mass of this cluster is estimated to be Mc=6620.4±762.5M⊙.
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WU Zhen-Yu, DU Cui-Hua, MA Jun, ZHOU Xu. Mass of Open Cluster NGC 7789[J]. Chin. Phys. Lett., 2009, 26(2): 029701. DOI: 10.1088/0256-307X/26/2/029701
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WU Zhen-Yu, DU Cui-Hua, MA Jun, ZHOU Xu. Mass of Open Cluster NGC 7789[J]. Chin. Phys. Lett., 2009, 26(2): 029701. DOI: 10.1088/0256-307X/26/2/029701
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WU Zhen-Yu, DU Cui-Hua, MA Jun, ZHOU Xu. Mass of Open Cluster NGC 7789[J]. Chin. Phys. Lett., 2009, 26(2): 029701. DOI: 10.1088/0256-307X/26/2/029701
|
WU Zhen-Yu, DU Cui-Hua, MA Jun, ZHOU Xu. Mass of Open Cluster NGC 7789[J]. Chin. Phys. Lett., 2009, 26(2): 029701. DOI: 10.1088/0256-307X/26/2/029701
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