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

Phillips,D.F., A. G. Glenday, X. Dumusque, N. Buchschacher, A. C. Cameron, M. Cecconi, D. Charbonneau, R. Cosentino, A. Ghedina, R. Haywood, D. W. Latham, C-H. Li, M. Lodi, C. Lovis, E. Molinari, F. Pepe, D. Sasselov, A. Szentgyorgyi, S. Udry, and R. L. Walsworth. 2016. An astro-comb calibrated solar telescope to search for the radial velocity signature of Venus. Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation II, edited by Ramón Navarro, James H. Burge, Proc. of SPIE Vol. 9912: 99126Z. doi: 10.1117/12.2232452

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.

Other Sources

http://walsworth.physics.harvard.edu/publications/2016_Phillips_SPIE.pdf

Terms of Use

This article is made available under the terms and conditions applicable to Other Posted Material, as set forth at http://nrs.harvard.edu/urn-3:HUL.InstRepos:dash.current.terms-of-use#LAA

Citable link to this page

http://nrs.harvard.edu/urn-3:HUL.InstRepos:29374076

Collections

FAS Scholarly Articles [18172]

Contact administrator regarding this item (to report mistakes or request changes)