An Etymological Dictionary of Astronomy and Astrophysics
English-French-Persian

فرهنگ ریشه شناختی اخترشناسی-اخترفیزیک

M. Heydari-Malayeri    -    Paris Observatory

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Number of Results: 4 Search : clustering
clustering
  خوشه‌بندی   
xušé bandi

Fr.: agglomération, groupement   

Grouping of a number of similar astronomical objects.

Noun from verb → cluster.

clustering law
  قانون ِ خوشه‌بندی   
qânun-e xušé bandi

Fr.: loi de groupement   

An empirical power-law representing the number of stellar clusters as a function of the number of stars per cluster within an interval. It is expressed as: N(N*) dN*∝ N* dN*, where N(N*) is the number of clusters containing N* stars and dN* is the interval in star number. It is believed that this relationship applies to a variety of systems, including stellar clusters, globular clusters, H II regions (Oey et al. 2004, AJ 127, 1632).

clustering; → law.

hierarchical clustering
  خوشه‌بندی ِ پایگانی   
xušé bandi-ye pâygâni

Fr.: groupement hiérarchique   

A model in which a system of self-gravitating particles will gradually aggregate into larger and larger gravitationally bound groups and clusters.

hierarchical; → clustering.

superclustering
  اَبَر-خوشه بندی   
abar-xuše bandi

Fr.:   

Grouping of galaxies in supercluster structure.

super-; → clustering