Open Access
Table 2
Fraction of the overall NESS sample that has been observed with the JCMT in this work, divided by tier and chemical type.
| Tier | Total | O-rich (a) | C-rich |
|---|---|---|---|
| All tiers | 485/852(57%) | 421/757(56%) | 64/95(67%) |
| Very low | 1/19(5%) | 1/19(5%) | 0/0(-) |
| Low | 76/105(72%) | 72/101(71%) | 4/4(100%) |
| Interm. | 169/222(76%) | 152/201(76%) | 17/21(81%) |
| High | 190/324(59%) | 152/273(56%) | 38/51(75%) |
| Extreme | 49/182(27%) | 44/163(27%) | 5/19(26%) |
Notes. (a) Sources without mid-IR based chemical identifications are assumed to be O-rich; see Section 2.4 for details.
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