Feasibility study for a retrieval from transit spectra of Earth-like planets in the habitable zone

Kurzfassung

Exoplanetary atmosphere retrievals gain more and more importance with every new discovered planet. Due to the lack of prior information, the feasibility of such retrievals is widely unknown and primary limited by the number of transits (noise). With nonlinear least squares fitting and some model atmospheres, we quantitatively investigate the influence of noise, wavelength range, initial guess and resolution to assess the range of possible outcomes.