Discovering Exoplanets Hidden in the Stellar Noise
Characterising the smallest planets: Solar observations with HARPS-N
Date Submitted
2017-04-14 09:07:35
Annelies Mortier
D. Phillips, X. Dumusque, R. Haywood, N. Langellier, J. Maldonado, T. Milbourne, A.C. Cameron, A. Glenday, D. Latham, E. Molinari, F. Pepe, D. Sasselov, S. Udry, R. Walsworth
University of St Andrews
Since July 2015, the HARPS-N spectrograph has been working day and night with a solar telescope feed into this high-resolution planet-hunter. These HARPS-N observations of the Sun as a star help in understanding the many variations seen in radial velocities that are not due to an exoplanet - stellar activity, data sampling, data reduction et cetera.
Stellar activity and its induced radial velocity variations are currently the main obstacle in detecting and characterising small exoplanets. In this talk I will present the solar data set and the different projects currently undertaken by the HARPS-N solar team in order to understand and model these activity-related variations.
Schedule
id
date time
09:00 - 10:30
10:15
Abstract
Characterising the smallest planets: Solar observations with HARPS-N