Astronomy and Astrophysics – Astrophysics – Solar and Stellar Astrophysics
Scientific paper
2009-08-04
Astronomy and Astrophysics
Astrophysics
Solar and Stellar Astrophysics
To be published in Proc. GONG2008/SOHO21 meeting: Solar-stellar Dynamos as revealed by Helio- and Asteroseismology, eds M. Dik
Scientific paper
The Stellar Observations Network Group (SONG) has obtained full funding for the design, construction and implementation of a prototype telescope and instrumentation package for the first network node. We describe the layout of such a node and its instrumentation and expected performance for radial-velocity measurements. The instrumentation consists of a 1m telescope, equipped with two cameras for photometry of microlensing events with the lucky-imaging technique and a high-resolution spectrograph equipped with an iodine cell for obtaining high-precision radial velocities of solar-like stars, in order to do asteroseismology. The telescope will be located in a dome of ~ 4.5 m diameter, with two lucky-imaging cameras at one of the Nasmyth foci and the spectrograph and instrument control computers at a Coud{\'e} focus, located in an adjacent container. Currently the prototype telescope and instrumentation are undergoing detailed design. Installation at the first site (Tenerife) is expected during mid-late 2010, followed by extensive testing during 2011.
Arentoft Torben
Christensen-Dalsgaard Joergen
Frandsen Soeren
Grundahl Frank
Jørgensen Uffe G.
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