Populating the Milky Way - Characterising planet demographics by combining galaxy formation simulations and planet population synthesis models

Open Access

Table 2

Comparison of the occurrence rates for various planet types under the M_* = 1 and N_Embryos = 50 model run, showcasing mean values (upper value) and interquartile range (95% percentile − 5% percentile, lower value).

	Full model	Reduced model
Earth	4.1	3.9
	6.1	6.4
Super-Earth	3.4	3.0
	6.4	7.1
Neptunian	0.43	0.42
	1.2	1.6
Sub-giant	0.072	0.066
	0.43	0.53
Giant	0.31	0.35
	1.3	1.5

Notes. The reduced model tends to slightly underestimate the frequency of Earth-like planets and overestimate that of giants relative to the full model, with a consistently higher variance observed across all planet categories.

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