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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
Corresponding
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Abstract

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

Anglada-Escude, G., et al., 2012, PASP, 124, 586CrossRefGoogle Scholar
Dressing, C. & Charbonneau, D., 2013, ApJ, 767, 95CrossRefGoogle Scholar
Howard, A., et al. 2012, ApJS, 201, 15CrossRefGoogle Scholar
Reiners, A., et al., 2010, ApJ, 710, 432CrossRefGoogle Scholar
Plavchan, P., et al., 2015, NASA ExoPAG report, arXiv:1503.01770Google Scholar
Plavchan, P., et al., 2013a, SPIE, 8864, 0GGoogle Scholar
Plavchan, P., et al., 2013b, SPIE 8864, 1JGoogle Scholar
Robertson, P., et al. 2015, ApJ 801, 79CrossRefGoogle Scholar
Vanderberg, A., et al., 2015, in prep.Google Scholar
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