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Table 2

Exoplanet classification scheme introduced by Kopparapu et al. (2018).

Planet type RP (R) Stellar flux range (S)
Hot Warm Cold
Rocky 0.5–1 182–1.0 1.0–0.28 0.28–0.0035
Super-Earths 1–1.75 187–1.12 1.12–0.30 0.30–0.0030
Sub-Neptunes 1.75–3.5 188–1.15 1.15–0.32 0.32–0.0030
Sub-Jovians 3.5–6 220–1.65 1.65–0.45 0.45–0.0030

Notes. Together with the planet types defined in Table 1, we apply this scheme in Figs. 4, 8, 9, and 14, as well as in Figs. C.3 and C.6 in Appendix C. For reference, Venus would be classified as a “hot, rocky” planet and Earth and Mars as “warm, rocky” planets.

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