Table 7.

Average Abundances and Spread Ratios of the 43 M15 Stars with an r-Process Signature

	〈[X/H]〉	N	σ	SRtot a	SREu b
Sr	−2.58	7	0.15	1.48	1.21
Zr	−2.09	41	0.13	1.26	1.19
Ba	−2.53	43	0.22	2.22	0.77
La	−1.87	25	0.15	1.50	0.70
Ce	−2.14	32	0.17	1.65	0.69
Nd	−1.90	31	0.17	1.67	0.43
Sm	−1.78	26	0.16	1.62	0.80
Eu	−1.74	43	0.21	2.10	0
Dy	−1.54	25	0.16	1.63	0.43

Notes.

^a SR_tot is the spread ratio using the actual abundances.

^b SR_Eu is the spread ratio using the abundances when the Eu abundances have been shifted to the same value.