A Caltech Library Service

EarthFinder Probe Mission Concept Study: Characterizing nearby stellar exoplanet systems with Earth-mass analogs for future direct imaging

Plavchan, Peter and Vasisht, Gautam and Beichman, Chas and Cegla, Heather and Dumusque, Xavier and Wang, Sharon and Gao, Peter and Dressing, Courtney and Bastien, Fabienne and Basu, Sarbani and Beatty, Thomas and Bechter, Andrew and Bechter, Eric and Blake, Cullen and Bourrier, Vincent and Cale, Bryson and Ciardi, David and Crass, Jonathan and Crepp, Justin and de Kleer, Katherine and Diddams, Scott and Eastman, Jason and Fischer, Debra and Gagné, Jonathan and Gaudi, Scott and Grier, Catherine and Hall, Richard and Halverson, Sam and Hamze, Bahaa and Herrero Casas, Enrique and Howard, Andrew and Kempton, Eliza and Latouf, Natasha and Leifer, Stephanie and Lightsey, Paul and Lisse, Casey and Martin, Emily C. and Matzko, William and Mawet, Dimitri and Mayo, Andrew and Newman, Patrick and Papp, Scott and Pope, Benjamin and Purcell, Bill and Quinn, Sam and Ribas, Ignasi and Rosich, Albert and Sanchez-Maes, Sophia and Tanner, Angelle and Thompson, Samantha and Vahala, Kerry and Wang, Ji and Williams, Peter and Wise, Alex and Wright, Jason (2020) EarthFinder Probe Mission Concept Study: Characterizing nearby stellar exoplanet systems with Earth-mass analogs for future direct imaging. . (Unpublished)

[img] PDF - Submitted Version
See Usage Policy.


Use this Persistent URL to link to this item:


EarthFinder is a NASA Astrophysics Probe mission concept selected for study as input to the 2020 Astrophysics National Academies Decadal Survey. The EarthFinder concept is based on a dramatic shift in our understanding of how PRV measurements should be made. We propose a new paradigm which brings the high precision, high cadence domain of transit photometry as demonstrated by Kepler and TESS to the challenges of PRV measurements at the cm/s level. This new paradigm takes advantage of: 1) broad wavelength coverage from the UV to NIR which is only possible from space to minimize the effects of stellar activity; 2) extremely compact, highly stable, highly efficient spectrometers (R>150,000) which require the diffraction-limited imaging possible only from space over a broad wavelength range; 3) the revolution in laser-based wavelength standards to ensure cm/s precision over many years; 4) a high cadence observing program which minimizes sampling-induced period aliases; 5) exploiting the absolute flux stability from space for continuum normalization for unprecedented line-by-line analysis not possible from the ground; and 6) focusing on the bright stars which will be the targets of future imaging missions so that EarthFinder can use a ~1.5 m telescope.

Item Type:Report or Paper (White Paper)
Related URLs:
URLURL TypeDescription Paper
Plavchan, Peter0000-0002-8864-1667
Vasisht, Gautam0000-0002-1871-6264
Beichman, Chas0000-0002-5627-5471
Dumusque, Xavier0000-0002-9332-2011
Wang, Sharon0000-0002-6937-9034
Gao, Peter0000-0002-8518-9601
Dressing, Courtney0000-0001-8189-0233
Bastien, Fabienne0000-0002-7243-1921
Basu, Sarbani0000-0002-6163-3472
Beatty, Thomas0000-0002-9539-4203
Bechter, Eric0000-0001-8725-8730
Blake, Cullen0000-0002-6096-1749
Bourrier, Vincent0000-0002-9148-034X
Cale, Bryson0000-0001-6279-0595
Ciardi, David0000-0002-5741-3047
Crepp, Justin0000-0003-0800-0593
de Kleer, Katherine0000-0002-9068-3428
Diddams, Scott0000-0002-2144-0764
Eastman, Jason0000-0003-3773-5142
Fischer, Debra0000-0003-2221-0861
Gagné, Jonathan0000-0002-2592-9612
Grier, Catherine0000-0001-9920-6057
Halverson, Sam0000-0003-1312-9391
Howard, Andrew0000-0001-8638-0320
Kempton, Eliza0000-0002-1337-9051
Leifer, Stephanie0000-0002-8980-7825
Martin, Emily C.0000-0002-0618-5128
Mawet, Dimitri0000-0002-8895-4735
Mayo, Andrew0000-0002-7216-2135
Papp, Scott0000-0001-8290-7076
Quinn, Sam0000-0002-8964-8377
Tanner, Angelle0000-0002-0786-7307
Vahala, Kerry0000-0003-1783-1380
Wang, Ji0000-0002-4361-8885
Wright, Jason0000-0001-6160-5888
Additional Information:© 2019. NASA Probe Mission concept white paper for 2020 Astrophysics National Academies Decadal Survey. This research was carried out at George Mason University and the Jet Propulsion Laboratory, California Institute of Technology, under a contract with the National Aeronautics and Space Administration. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise, does not constitute or imply its endorsement by the United States Government or the Jet Propulsion Laboratory, California Institute of Technology.
Group:Astronomy Department, Infrared Processing and Analysis Center (IPAC)
Funding AgencyGrant Number
George Mason UniversityUNSPECIFIED
Record Number:CaltechAUTHORS:20200817-122112681
Persistent URL:
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:104980
Deposited By: Tony Diaz
Deposited On:17 Aug 2020 20:33
Last Modified:17 Aug 2020 20:33

Repository Staff Only: item control page