Table 5 Results of modelling the amount of N in the lunar interior and the permitted proportion of cometary N added during late accretion.

From: An asteroidal origin for water in the Moon

Main CC type

N content of 400/1,000-km-deep LMO (p.p.m.)

Scenario 1: max. % N from comets

Scenario 2: max. % N from comets initial δ 15 N=−2 or −40‰, respectively

CI

2.21

0.0

0, 0

CO

1.01

∼5.0

6, 8

CM

0.95

0.0

0, 2.5

CV

1.48

4.5

6, ∼8

  1. LMO, lunar magma ocean; max., maximum. N contents based on BSM of 100 p.p.m. H2O.
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