<< back
Towards precise and accurate exoplanet mass determinations: HARPS-N observes the Sun

Raphaëlle D. Haywood
Harvard-Smithsonian Center for Astrophysics

The HARPS-N spectrograph is now operating with a new solar telescope feed since July 2015. I will present early results from the first 11 months of HARPS-N observations of the Sun as a star, with a particular focus on our investigations aimed at understanding radial-velocity variations induced by the Sun’s surface activity (sunspots, faculae/plage, granulation).
This solar dataset is also key to improving our wavelength calibration and data reduction techniques, and to designing more efficient observing strategies for the stars targeted by HARPS-N at nighttime.

2016 May 25, 13:30

Centro de Astrofísica da Universidade do Porto (Auditorium)
Rua das Estrelas, 4150-762 Porto

Faculdade de Ciências da Universidade de Lisboa Universidade do Porto Faculdade de Ciências e Tecnologia da Universidade de Coimbra
Fundação para a Ciência e a Tecnologia COMPETE 2020 PORTUGAL 2020 União Europeia