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Occurrence Rates of Accreting Companions from a New Method for Computing Emission-line Survey Sensitivity: Application to the Hα Giant Accreting Protoplanet Survey

  • Authors: Cailin Plunkett, Katherine B. Follette, Gabriel-Dominique Marleau, Eric L. Nielsen

Cailin Plunkett et al 2025 The Astronomical Journal 169 .

  • Provider: AAS Journals

Caption: Figure 3.

Top: GAPlanetS completeness to companions assuming circular orbits, P(e) = δ0,e, using the planetary ﹩\dot{M}-M﹩ and stellar LHαLacc scalings. The color scale and contours are as in Figure 2. Bottom: difference in survey sensitivity when assuming orbital eccentricities following P(e) ∝ 2.1−2.2e (lower left panel of Figure 2) vs. assuming circular orbits, P(e) = δ0,e. The color bar shows the difference in the number of stars to which the survey is complete (out of 14); positive values indicate eccentric companions are easier to detect.

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