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Planetary detection limits taking into account stellar noise - I. Observational strategies to reduce stellar oscillation and granulation effects
Context. Stellar noise produced by oscillations, granulation phenomena (granulation, mesogranulation, and supergranulation), and activity affects radial velocity measurements. The signature of the corresponding effect in radial velocity is small, around the meter-per-second, but already too large for the detection of Earth-mass planets in habitable zones.Aims. We address the important role …