Detection of 51 Peg b with a Dispersed Fixed-Delay Interferometer

Details Detection of 51 Peg b with a Dispersed Fixed-Delay Interferometer Detection of 51 Peg b with a Dispersed Fixed-Delay Interferometer

Dec 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004aspc..321..109v&link_type=abstract

Extrasolar Planets: Today and Tomorrow, ASP Conference Proceedings, Vol. 321, held 30 June - 4 July 2003, Institut D'Astrophysiq

Astronomy and Astrophysics

Astrophysics

Scientific paper

We present here successful detection of the known planetary companion to 51 Peg, using Exoplanet Tracker (ET), an instrument based on a new Doppler technique known as `dispersed fixed-delay interferometry', at the KPNO 2.1m telescope. RMS precisions of 11.5 m s-1 and 7.9 m s-1 were obtained for 51 Peg and Eta Cas (a radial velocity stable star) respectively, over a period of a few days.
An improved next-generation ET is now being developed at Penn State for RV surveys which is expected to achieve a total detection efficiency in excess of 22% from above the atmosphere to the detector. In principle this kind of instrument can also been designed for multi-object observation, and could be used for cost-effective all-sky Doppler surveys, leading to a dramatic increase in current Doppler survey speeds.

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