ABORAS: polarimetric, 10cm/s RV observations of the Sun as a star
Jentink, CF; Mortier, A; Snik, F; et al.Dorval, P; Thompson, SJ; Navarro, R; Naylor, T
Date: 29 August 2022
Conference paper
Publisher
Society of Photo-optical Instrumentation Engineers (SPIE)
Publisher DOI
Abstract
We present a description of A dual-Beam polarimetric Robotic Aperture for the Sun (ABORAS), to serve as a Solar input with a dedicated Stokes V polarimeter for the HARPS3 high-resolution spectrograph. ABORAS has three main science drivers: trying to understand the physics behind stellar variability, tracking the long term stability of ...
We present a description of A dual-Beam polarimetric Robotic Aperture for the Sun (ABORAS), to serve as a Solar input with a dedicated Stokes V polarimeter for the HARPS3 high-resolution spectrograph. ABORAS has three main science drivers: trying to understand the physics behind stellar variability, tracking the long term stability of HARPS3, and serve as a benchmark for Earth-sized exoplanet detection with HARPS3 by injecting an Earth RV signal into the data. By design, ABORAS will (together with the HARPS3 instrument) be able to measure 10cm/s variations in RV of the integrated Solar disk and detect integrated magnetic field levels at sub 1 Gauss level through circularly polarized light.
Physics and Astronomy
Faculty of Environment, Science and Economy
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