Multimodality in galaxy clusters from SDSS DR8: substructure and velocity distribution

M. Einasto; J. Vennik; P. Nurmi; E. Tempel; A. Ahvensalmi; E. Tago; L. J. Liivamägi; E. Saar; P. Heinämäki; J. Einasto; V. J. Martínez

doi:10.1051/0004-6361/201118697

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Volume 540 (April 2012)

A&A, 540 (2012) A123

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Table 3

Results of the principal component analysis for the test results and for the physical parametres of clusters, combined.

	PC1	PC2	PC3	PC4	PC5	PC6	PC7

N_comp3D	0.218	–0.596	0.407	–0.115	0.600	0.232	–0.050
log (V_pec)	0.185	0.305	0.415	–0.811	–0.147	–0.133	0.039
p_Δ	0.284	–0.171	0.602	0.427	–0.571	–0.051	0.118
log (L_tot)	0.537	0.116	–0.287	–0.010	0.035	0.351	0.699
log (N_gal)	0.509	–0.004	–0.153	0.120	0.242	–0.799	–0.063
log (rms velocity)	0.355	0.603	0.162	0.268	0.236	0.343	–0.487
log (r_vir)	0.401	–0.379	–0.406	–0.242	–0.418	0.211	–0.500

Importance of components

	PC1	PC2	PC3	PC4	PC5	PC6	PC7
St. deviation	1.627	1.115	1.014	0.950	0.795	0.609	0.418
Prop. of Variance	0.378	0.177	0.147	0.129	0.090	0.053	0.025
Cumulative Prop.	0.378	0.556	0.703	0.832	0.922	0.975	1.000

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