= Gabriela Mallén-Ornelas
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<Gabriela Mallén-Ornelas> coauthored, with <Sara Seager>, an analytic study of what an <exoplanet transit> reveals about a <planet> and its host <star>. A <light curve> supplies more than a depth: durations and the <orbital period> also constrain the geometry.
Their result shows that the mean stellar <mass density> can be inferred from the <light curve> under stated assumptions, including a circular <orbit> and negligible <limb darkening> in the observing band. These conditions matter: a claim of a unique solution under a specified model does not make the same inference model-independent.<On the Unique Solution of Planet and Star Parameters from an Extrasolar Planet Transit Light Curve by Sara Seager and Gabriela Mallén-Ornelas>[Abstract: circular-orbit and limb-darkening assumptions, stellar density and photometric requirements]{ref}
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