Code of conduct

Upload instructions

What is exoplanet-talks.org?

News

Recorded for the UK Exoplanets Meeting 2021.
Abstract:  The Terra Hunting Experiment is a 10-year radial-velocity (RV) search designed to discover Earth-mass planets on ~300-day orbits, around our nearest Solar-like stars.  It will be the most intensive RV search ever attempted to find Earth-analogues, and will effectively probe the undiscovered mass-period parameter space of exoplanets with RV semi-amplitudes of 10-50 cm/s and orbital periods > 60 days.  To undertake this programme, we are building the High Accuracy Radial-velocity Planet Searcher 3 (HARPS3), an R = 115,000 echelle spectrograph, operated in a robotic mode on the refurbished 2.5m Isaac Newton Telescope.
   I will present some of the challenges, including the effects of stellar activity and instrumental systematics, we are addressing in order to push our detection threshold to 10 cm/s - the RV semi-amplitude of an Earth-analogue planet.  I will also present an overview of the HARPS3 instrument and describe our observing strategy for the Terra Hunting Experiment.

Terra Hunting Experiment: Finding another Earth with HARPS3