IA/U.Porto Seminar - Towards precise and accurate exoplanet mass determinations: HARPS-N observes the Sun - 25 maio 2016



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.


25 de maio de 2016 | 13:30
Centro de Astrofísica da Universidade do Porto (Auditorium)
Rua das Estrelas, 4150-762 Porto
IA Seminars webpage