Precision radial velocities with CSHELL

Abstract

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.

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

References in corpus (15)

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• M dwarfs: effective temperatures, radii and metallicities
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• A Transiting Planet of a Sun-like Star
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• Differential Radial Velocities and Stellar Parameters of Nearby Young Stars
• A Young Planet Search in Visible and IR Light: DN Tau, V836 Tau, and V827 Tau
• A multiwavelength radial velocity search for planets around the brown dwarf LP 944-20
• Multiepoch Radial Velocity Observations of L Dwarfs
• Saturn Forms by Core Accretion in 3.4 Myr
• Formation of giant planets around stars with various masses

Cited by in corpus (15)

• Metallicity and Temperature Indicators in M dwarf K band Spectra: Testing New & Updated Calibrations With Observations of 133 Solar Neighborhood M dwarfs
• A High-Precision NIR Survey for RV Variable Low-Mass Stars
• Identifying the young low-mass stars within 25 pc. II. Distances, kinematics and group membership
• SOAP. A tool for the fast computation of photometry and radial velocity induced by stellar spots
• A Candidate Young Massive Planet in Orbit around the Classical T Tauri Star CI Tau
• Precise Infrared Radial Velocities from Keck/NIRSPEC and the Search for Young Planets
• The PTF Orion Project: a Possible Planet Transiting a T-Tauri Star
• A Search for Giant Planet Companions to T Tauri Stars
• A 3D Search for Companions to 12 Nearby M-Dwarfs
• Precise Radial Velocities of Cool Low Mass Stars With iSHELL
• Keck NIRSPEC Radial Velocity Observations of Late-M dwarfs
• Retrieval of Precise Radial Velocities from Near-Infrared High Resolution Spectra of Low Mass Stars
• H-alpha Variability in PTFO8-8695 and the Possible Direct Detection of Emission from a 2 Million Year Old Evaporating Hot Jupiter
• Finding proto-spectroscopic binaries: Precise multi-epoch radial velocities of 7 protostars in rho-Ophiuchus
• Multiplexing Precision RVs: Searching for Close in Gas Giants in Open Clusters