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Extreme Precision Radial Velocity Working Group Final Report

Crass, J. and Gaudi, B. Scott and Leifer, S. and Beichman, C. A. and Bender, Chad and Blackwood, Gary and Burt, Jennifer A. and Callas, John L. and Cegla, Heather M. and Diddams, Scott A. and Dumusque, Xavier and Eastman, Jason D. and Ford, Eric B. and Fulton, B. J. and Gibson, Rose and Halverson, Samuel and Haywood, Raphaëlle D. and Hearty, Fred and Howard, A. and Latham, David W. and Löhner-Böttcher, Johannes and Mamajek, Eric E. and Mortier, Annelies and Newman, Patrick and Plavchan, Peter and Quirrenbach, Andreas and Reiners, Ansgar and Robertson, Paul and Roy, Arpita and Schwab, Christian and Seifahrt, Andres and Szentgyorgyi, Andy and Terrien, Ryan and Teske, Johanna K. and Thompson, Samantha and Vasisht, G. (2021) Extreme Precision Radial Velocity Working Group Final Report. . (Unpublished)

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Precise mass measurements of exoplanets discovered by the direct imaging or transit technique are required to determine planet bulk properties and potential habitability. Furthermore, it is generally acknowledged that, for the foreseeable future, the Extreme Precision Radial Velocity (EPRV) measurement technique is the only method potentially capable of detecting and measuring the masses and orbits of habitable-zone Earths orbiting nearby F, G, and K spectral-type stars from the ground. In particular, EPRV measurements with a precision of better than approximately 10 cm/s (with a few cm/s stability over many years) are required. Unfortunately, for nearly a decade, PRV instruments and surveys have been unable to routinely reach RV accuracies of less than roughly 1 m/s. Making EPRV science and technology development a critical component of both NASA and NSF program plans is crucial for reaching the goal of detecting potentially habitable Earthlike planets and supporting potential future exoplanet direct imaging missions such as the Habitable Exoplanet Observatory (HabEx) or the Large Ultraviolet Optical Infrared Surveyor (LUVOIR). In recognition of these facts, the 2018 National Academy of Sciences (NAS) Exoplanet Science Strategy (ESS) report recommended the development of EPRV measurements as a critical step toward the detection and characterization of habitable, Earth-analog planets. In response to the NAS-ESS recommendation, NASA and NSF commissioned the EPRV Working Group to recommend a ground-based program architecture and implementation plan to achieve the goal intended by the NAS. This report documents the activities, findings, and recommendations of the EPRV Working Group.

Item Type:Report or Paper (Report)
Related URLs:
URLURL TypeDescription Paper ItemNASA-NSF Exoplanet Observational Research (NN-EXPLORE)
Gaudi, B. Scott0000-0003-0395-9869
Leifer, S.0000-0002-8980-7825
Beichman, C. A.0000-0002-5627-5471
Bender, Chad0000-0003-4384-7220
Burt, Jennifer A.0000-0002-0040-6815
Diddams, Scott A.0000-0002-2144-0764
Dumusque, Xavier0000-0002-9332-2011
Eastman, Jason D.0000-0003-3773-5142
Ford, Eric B.0000-0001-6545-639X
Fulton, B. J.0000-0003-3504-5316
Halverson, Samuel0000-0003-1312-9391
Haywood, Raphaëlle D.0000-0001-9140-3574
Hearty, Fred0000-0002-1664-3102
Howard, A.0000-0001-8638-0320
Latham, David W.0000-0001-9911-7388
Mamajek, Eric E.0000-0003-2008-1488
Mortier, Annelies0000-0001-7254-4363
Plavchan, Peter0000-0002-8864-1667
Robertson, Paul0000-0003-0149-9678
Roy, Arpita0000-0001-8127-5775
Schwab, Christian0000-0002-0091-7105
Terrien, Ryan0000-0002-4788-8858
Vasisht, G.0000-0002-1871-6264
Additional Information:Edited by: Jonathan Crass, Department of Physics, University of Notre Dame; Scott Gaudi, Department of Astronomy, The Ohio State University; Stephanie Leifer, Jet Propulsion Laboratory, California Institute of Technology.
Group:Astronomy Department, Infrared Processing and Analysis Center (IPAC)
Record Number:CaltechAUTHORS:20211124-203854733
Persistent URL:
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:112054
Deposited By: Tony Diaz
Deposited On:24 Nov 2021 21:43
Last Modified:02 Jun 2023 01:18

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