A recipe for orbital eccentricity damping in the type-I regime for low-viscosity 2D discs

Open Access

Fig. A.1

Surface density evolution in a setup with α_t = 10⁻³ and h = 0.05, over 3000 orbits of a m_pl/M_* = 1 × 10⁻⁵ planet on a (fixed) circular orbit at 1 AU. We show the surface density contrast (∑_t(r, θ) − 〈∑_t(r)〉_θ)/〈∑_t(r)〉_θ on the (θ, r) plane, where 〈∑_t(r)〉_θ is the azimuthally averaged surface density at the distance r.

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