The All Sky Extrasolar Planet Survey Using New Generation Multi-object Keck Exoplanet Tracker Instruments at the SDSS 2.5m telescope

Astronomy and Astrophysics – Astronomy

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Scientific paper

All Sky Extrasolar Planet Survey (ASEPS) will use the Sloan 2.5-m wide field telescope and multiple-object high-throughput W.M. Keck Exoplanet Tracker (Keck ET) Doppler instruments to undertake a large-scale visible and near-IR band Doppler survey of relatively bright stars (generally V < 13 for the visible and J < 11 for the near IR) for extrasolar planets. During 2008-2013, ASEPS could search as many as 250,000 stars to find thousands of planets. An extended survey continuing until 2020 could survey an additional 250,000 stars and obtain information on long-period planets from the earlier detected planet sample, possibly detecting many solar analogs. ASEPS aims to increase the number of known extrasolar planets by nearly two orders of magnitude ( 10,000 planets in the 12-year survey using all clear nights). This dramatic increase in the number of known planets would allow astronomers to study correlations among the diverse properties of extrasolar planets much more effectively than at present. Additionally, the large number of planet discoveries will enable the detection of rare planets that may have eluded previous planet searches. Early results from the first Keck ET commissioning and also a trial planet survey will be presented.

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