The relatively low figure allowed them to state with confidence that neutron stars alone could not explain the starmotions they saw.
相对少的数量使得他们很有信心的认为中子星不足以解释观测到的现象。
2
Gebhardt has data in hand from a ground-based survey of starmotions in about 15 other Milky Way clusters, most of them easier to study than the crowded heart of M15.