Statistical analysis of bound companions in the Coma cluster

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Volume 604 (August 2017)

A&A, 604 (2017) A96

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Table 4

Net densities of secondaries around primaries depending on their location according to Table 3. Symbols are explained in the text.

Primary Location	δv-bin [km s^-1]
(1)	(2)	(3)
Separation r [kpc]		20	40	60	80	100	120	140	160	180	200	220	240	260	280	300

Outer II	0–250	0	0	++	0	+	+	0	+	0	0	0	0	0	0	0
	250-500	0	++	+	+	+	0	0	0	0	0	+	+	0	0	0

Outer III	0–250	0	++	+	0	0	+	0	0	0	+	+	+	+	+	0
	250-500	0	0	+	0	+	++	+	+	+	+	+	++	++	++	++

Outer IV	0–250	0	+	0	0	0	0	+	0	+	+	+	+	+	+	+
	250–500	0	0	0	+	+	++	++	++	+	++	+	+	+	+	+

Outer V	250–500	0	+ +	0	0	0	0	0	0	0	0	0	0	0	0	0

Outer VI	0–250	+	+	0	0	0	0	0	+	0	0	0	+	+	+	+
	250–500	0	0	0	−	−	0	−	−	−	0	0	0	−	−	0

Outer VII	0–250	0	0	0	0	+	++	+	+	+	+	+	+	+	0	0
	250–500	+++	+++	+	+	+	0	+	+	+	+	0	0	0	0	0

Notes. The columns list: (1) primary subsample according to Table 3; (2) velocity difference bin; (3) net secondary density around primaries (WLG11 data minus random values). For each bin [0,r_i] we give either a “0” or a series of “+” or “-” signs in the table. A “0” indicates that the WLG11 mean density Σ(r) lies within one standard deviation of the pseudo-cluster mean . One, two or three “+”-signs are indicating a , or over-density. The latter also stands for over-densities at more than the significance level. Similarly, under-densities are indicated by “-”-signs.

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