Precision radial velocities with CSHELL

Details Precision radial velocities with CSHELL Precision radial velocities with CSHELL

2011-04-19

arxiv.org/abs/1104.3804v1

Astronomy and Astrophysics

Astrophysics

Earth and Planetary Astrophysics

31 pages, 3 figures, 2 tables, accepted for publication in ApJ

Scientific paper

Radial velocity identification of extrasolar planets has historically been dominated by optical surveys. Interest in expanding exoplanet searches to M dwarfs and young stars, however, has motivated a push to improve the precision of near infrared radial velocity techniques. We present our methodology for achieving 58 m/s precision in the K band on the M0 dwarf GJ 281 using the CSHELL spectrograph at the 3-meter NASA IRTF. We also demonstrate our ability to recover the known 4 Mjup exoplanet Gl 86 b and discuss the implications for success in detecting planets around 1-3 Myr old T Tauri stars.

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