An astro-comb calibrated solar telescope to search for the radial velocity signature of Venus
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We recently demonstrated sub-m/s sensitivity in measuring the radial velocity (RV) between the Earth and Sun using a simple solar telescope feeding the HARPS-N spectrograph at the Italian National Telescope, which is calibrated with a green astro-comb. We are using the solar telescope to characterize the effects of stellar (solar) RV jitter due to activity on the solar surface with the goal of detecting the solar RV signal from Venus, thereby demonstrating the sensitivity of these instruments to detect true Earth-twin exoplanets.
Phillips , D F , Glenday , A G , Dumusque , X , Buchschacher , N , Cameron , A C , Cecconi , M , Charbonneau , D , Cosentino , R , Ghedina , A , Haywood , R , Latham , D W , Li , C H , Lodi , M , Lovis , C , Molinari , E , Pepe , F , Sasselov , D , Szentgyorgyi , A , Udry , S & Walsworth , R L 2016 , An astro-comb calibrated solar telescope to search for the radial velocity signature of Venus . in R Navarro & J H Burge (eds) , Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation II . , 99126Z , Proceedings of SPIE , vol. 9912 , SPIE , Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation II , Edinburgh , United Kingdom , 26-1 July . DOI: 10.1117/12.2232452conference
Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation II
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