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Precise Near-Infrared Radial Velocities

Published online by Cambridge University Press:  27 January 2016

Peter Plavchan
Affiliation:
Missouri State University email: plavchan@missouristate.edu
Peter Gao
Affiliation:
Caltech
Jonathan Gagne
Affiliation:
University of Montreal
Elise Furlan
Affiliation:
NASA Exoplanet Science Institute
Carolyn Brinkworth
Affiliation:
National Center for Atmospheric Research/ University Corporation for Atmospheric Research
Michael Bottom
Affiliation:
Caltech
Angelle Tanner
Affiliation:
Mississippi State University
Guillem Anglada-Escude
Affiliation:
University College London
Russel White
Affiliation:
Georgia State University
Cassy Davison
Affiliation:
Georgia State University
Sean Mills
Affiliation:
University of Chicago
Chas Beichman
Affiliation:
NASA Exoplanet Science Institute
John Asher Johnson
Affiliation:
Harvard
David Ciardi
Affiliation:
NASA Exoplanet Science Institute
Kent Wallace
Affiliation:
NASA Jet Propulsion Laboratory
Bertrand Mennesson
Affiliation:
NASA Jet Propulsion Laboratory
Gautam Vasisht
Affiliation:
NASA Jet Propulsion Laboratory
Lisa Prato
Affiliation:
Lowell Observatory
Stephen Kane
Affiliation:
San Francisco State University
Sam Crawford
Affiliation:
NASA Jet Propulsion Laboratory
Tim Crawford
Affiliation:
NASA Jet Propulsion Laboratory
Keeyoon Sung
Affiliation:
NASA Jet Propulsion Laboratory
Brian Drouin
Affiliation:
NASA Jet Propulsion Laboratory
Sean Lin
Affiliation:
NASA Jet Propulsion Laboratory
Stephanie Leifer
Affiliation:
NASA Jet Propulsion Laboratory
Joe Catanzarite
Affiliation:
SETI Institute
Todd Henry
Affiliation:
Georgia State University
Kaspar von Braun
Affiliation:
Lowell Observatory
Bernie Walp
Affiliation:
NASA Ames
Claire Geneser
Affiliation:
Missouri State University email: plavchan@missouristate.edu
Nick Ogden
Affiliation:
Missouri State University email: plavchan@missouristate.edu
Andrew Stufflebeam
Affiliation:
Missouri State University email: plavchan@missouristate.edu
Garrett Pohl
Affiliation:
Missouri State University email: plavchan@missouristate.edu
Joe Regan
Affiliation:
Missouri State University email: plavchan@missouristate.edu
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Abstract

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We present the results of two 2.3 μm near-infrared (NIR) radial velocity (RV) surveys to detect exoplanets around 36 nearby and young M dwarfs. We use the CSHELL spectrograph (R ~ 46,000) at the NASA InfraRed Telescope Facility (IRTF), combined with an isotopic methane absorption gas cell for common optical path relative wavelength calibration. We have developed a sophisticated RV forward modeling code that accounts for fringing and other instrumental artifacts present in the spectra. With a spectral grasp of only 5 nm, we are able to reach long-term radial velocity dispersions of ~20–30 m s−1 on our survey targets.

Type
Contributed Papers
Copyright
Copyright © International Astronomical Union 2016 

References

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