Open AccessAn astro-comb calibrated solar telescope to search for the radial velocity signature of Venus
Author(s) -
David F. Phillips,
Alex Glenday,
X. Dumusque,
N. Buchschacher,
A. Collier Cameron,
M. Cecconi,
David Charbonneau,
R. Cosentino,
A. Ghedina,
R. D. Haywood,
David W. Latham,
ChihHao Li,
Marcello Lodi,
C. Lovis,
E. Molinari,
F. Pepe,
Dimitar Sasselov,
Andrew Szentgyorgyi,
S. Udry,
Ronald L. Walsworth
Publication year - 2016
Publication title -
proceedings of spie, the international society for optical engineering/proceedings of spie
Language(s) - English
Resource type - Conference proceedings
SCImago Journal Rank - 0.192
H-Index - 176
eISSN - 1996-756X
pISSN - 0277-786X
DOI - 10.1117/12.2232452
Subject(s) - venus , physics , exoplanet , spectrograph , telescope , radial velocity , astronomy , planet , solar telescope , sensitivity (control systems) , astrophysics , astrobiology , spectral line , stars , electronic engineering , engineering
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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