Open Access

Table 1.

Summary of the main characteristics of the A399–A401 pair.

Object z RA Dec Mass
(1014M)
Abell 0399 0.0718 02h 57m 56s +13°  00′ 59″ 5.7
Abell 0401 0.0737 02h 58m 57s +13°  34″ 46″ 9.3

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