VEGA: a new Visible spEctroGraph and polArimeter on the CHARA Array

摘要

The VEGA spectrograph and polarimeter has been recently integrated on the visible beams of the CHARA1Array. With a spectral resolution up to 35000 and thanks to operation at visible wavelengths, VEGA bringsunique capabilities in terms of spatial and spectral resolution to the CHARA Array. We will present the maincharacteristics of VEGA on CHARA, some results concerning the performance and a preliminary analysis of thefirst science run.