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Mass distribution in the open cluster NGC 1664
Author(s) -
Missana M.,
Missana† N.
Publication year - 1998
Publication title -
astronomische nachrichten
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.394
H-Index - 63
eISSN - 1521-3994
pISSN - 0004-6337
DOI - 10.1002/asna.2123190311
Subject(s) - open cluster , physics , ellipsoid , concentric , cluster (spacecraft) , mass distribution , astrophysics , star cluster , distribution (mathematics) , center (category theory) , center of mass (relativistic) , geometry , stars , astronomy , classical mechanics , mathematical analysis , mathematics , galaxy , energy–momentum relation , computer science , programming language , chemistry , crystallography
We start with the hypotheses that the cluster space is limited by an ellipsoid with a semiprincipal axis directed to the observer and that the star density inside of concentric ellipsodal layers remains constant, although varying from layer to layer. It results that the mean star mass at the periphery of the cluster is 0.59 Sun masses smaller than that at the center.