An astro-comb calibrated solar telescope to search for the radial velocity signature of Venus

David F. Phillips; Alex G. Glenday; Xavier Dumusque; Nicolas Buchschacher; Andrew Collier Cameron; Massimo Cecconi; David Charbonneau; Rosario Cosentino; Adriano Ghedina; Raphäelle Haywood; David W. Latham; Chih-Hao Li; Marcello Lodi; Christophe Lovis; Emilio Molinari; Francesco Pepe; Dimitar Sasselov; Andrew Szentgyorgyi; Stephane Udry; Ronald L. Walsworth

doi:10.1117/12.2232452

22 July 2016 An astro-comb calibrated solar telescope to search for the radial velocity signature of Venus

David F. Phillips, Alex G. Glenday, Xavier Dumusque, Nicolas Buchschacher, Andrew Collier Cameron, Massimo Cecconi, David Charbonneau, Rosario Cosentino, Adriano Ghedina, Raphäelle Haywood, David W. Latham, Chih-Hao Li, Marcello Lodi, Christophe Lovis, Emilio Molinari, Francesco Pepe, Dimitar Sasselov, Andrew Szentgyorgyi, Stephane Udry, Ronald L. Walsworth

Author Affiliations +

Proceedings Volume 9912, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation II; 99126Z (2016) https://doi.org/10.1117/12.2232452
Event: SPIE Astronomical Telescopes + Instrumentation, 2016, Edinburgh, United Kingdom

Abstract

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.

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David F. Phillips, Alex G. Glenday, Xavier Dumusque, Nicolas Buchschacher, Andrew Collier Cameron, Massimo Cecconi, David Charbonneau, Rosario Cosentino, Adriano Ghedina, Raphäelle Haywood, David W. Latham, Chih-Hao Li, Marcello Lodi, Christophe Lovis, Emilio Molinari, Francesco Pepe, Dimitar Sasselov, Andrew Szentgyorgyi, Stephane Udry, and Ronald L. Walsworth "An astro-comb calibrated solar telescope to search for the radial velocity signature of Venus", Proc. SPIE 9912, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation II, 99126Z (22 July 2016); https://doi.org/10.1117/12.2232452

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