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Table 2.

Details of the 15 groups found within the Coma cluster using the DS test.

Group ID Members (a) ⟨v⟩ σgroup E:S0:L:I:U (b) log⟨MH I/M⊙⟩(c) log⟨M⋆/M⊙⟩ ⟨DEFH I⟩(d) NGC members
(km s−1) (km s−1) (M⊙) (M⊙)
S1 27 7699 924 8:10:0:5:4 <7.20 10.84 >0.72 NGC 4874
S2 18 6113 932 6:6:0:5:1 <7.43 10.80 >1.00 NGC 4889, NGC 4894
S3 14 7626 358 7:3:0:4:0 <7.34 9.87 >0.67
S4 22 7981 899 6:7:1:5:3 <7.28 10.40 >1.08
S5 10 5868 843 5:5:0:0:0 <7.54 10.25 >1.57 NGC 4869
S6 17 6095 884 9:7:0:1:0 <7.39 9.82 >1.57
S7 11 (2) 6137 1031 4:3:2:2:0 7.37 9.83 >1.40
S8 22 (1) 7386 1238 11:5:1:3:2 7.76 10.15 >1.32 NGC 4919, NGC 4911
S9 11 (1) 6498 942 7:3:1:0:0 8.22 10.64 1.13 NGC 4923, NGC 4921
S10 6 (1) 8355 895 1:4:1:0:0 <7.71 10.62 0.81 NGC 4860, NGC 4858
S11 24 7621 462 12:6:0:2:4 <7.36 10.52 >1.12 NGC 4839
S12 7 7584 460 4:1:0:2:0 <7.69 9.68 >1.23
S13 24 (3) 7351 691 13:5:1:5:0 8.13 10.30 0.74 NGC 4859, NGC 4892
S14 17 6898 522 10:7:0:0:0 <7.59 10.25 >1.45
S15 11 6436 603 7:3:1:0:0 <7.93 10.22 >1.16 NGC 4943, NGC 4934

Notes.

(a)

Numbers in brackets are the number of individual direct detections in the group.

(b)

Number of elliptical or early-type galaxies (E), S0/lenticulars (S0), late-types (L), irregular galaxies (I), and galaxies of unknown morphology (U).

(c)

Average MH I obtained from stacking, where there is no detection in the stacked spectrum, a 3σ upper limit is used.

(d)

Average DEFH I obtained from stacking, where there is no detection in the stacked spectrum, a 1σ lower limit is used.

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