Speaker
Description
Long-term, stable wavelength calibration strategies are absolutely essential if we are to detect and characterize star-planet systems with a higher radial velocity precision. MARVEL is a new state-of-the-art facility at the Mercator Observatory (La Palma, Spain), that intends to accomplish a precision of 1 m/s. The array of four 80cm telescopes feeding a single high-resolution echelle spectrograph and projecting onto a single detector can operate in unison to target single objects, and independently, to study four objects simultaneously. This dedicated surveying facility will provide essential ground-based RV follow-up on transit measurements by previous and upcoming space missions. We will describe the MARVEL wavelength calibration system and the strategy that will be deployed to maximize calibration precision and long-term stability.
