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

By NelmaS on Ter, 17/05/2016 - 22:53
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Raphaëlle D. Haywood

Harvard-Smithsonian Center for Astrophysics

 

Resumo

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
 
Local
IA/U.Porto
Centro de Astrofísica da Universidade do Porto (Auditorium)
Rua das Estrelas, 4150-762 Porto
 
 
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