State of the Field: Extreme Precision Radial Velocities
Article
Article Title | State of the Field: Extreme Precision Radial Velocities |
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ERA Journal ID | 1082 |
Article Category | Article |
Authors | Fischer, Debra A. (Author), Anglada-Escude, Guillem (Author), Arriagada, Pamela (Author), Baluev, Roman V. (Author), Bean, Jacob L. (Author), Bouchy, Francois (Author), Buchave, Lars A. (Author), Carroll, Thorsten (Author), Chakraborty, Abhijit (Author), Crepp, Justin R. (Author), Dawson, Rebekah I. (Author), Diddams, Scott A. (Author), Dumusque, Xavier (Author), Eastman, Jason D. (Author), Endl, Michael (Author), Figueira, Pedro (Author), Ford, Eric B. (Author), Foreman-Mackey, Daniel (Author), Fournier, Paul (Author), Furesz, Gabor (Author), Gaudi, B. Scott (Author), Gregory, Philip C. (Author), Grundahl, Frank (Author), Hatzes, Artie P. (Author), Hebrard, Guillaume (Author), Herrero, Enrique (Author), Hogg, David W. (Author), Howard, Andrew W. (Author), Johnson, John A. (Author), Jorden, Paul (Author), Jurgenson, Colby A. (Author), Latham, David W. (Author), Laughlin, Greg (Author), Loredo, Thomas J. (Author), Lovis, Christophe (Author), Mahadevan, Suvrath (Author), McCracken, Tyler M. (Author), Pepe, Francesco (Author), Perez, Mario (Author), Phillips, David F. (Author), Plavchan, Peter P. (Author), Prato, Lisa (Author), Quirrenbach, Andreas (Author), Reiners, Ansgar (Author), Robertson, Paul (Author), Santos, Nuno C. (Author), Sawyer, David (Author), Segransan, Damien (Author), Sozzetti, Alessandro (Author), Steinmetz, Tilo (Author), Szentgyorgyi, Andrew (Author), Udry, Stéphane (Author), Valenti, Jeff A. (Author), Wang, Sharon X. (Author), Wittenmyer, Robert A. (Author) and Wright, Jason T. (Author) |
Journal Title | Publications of the Astronomical Society of the Pacific |
Journal Citation | 128 (964), pp. 1-43 |
Number of Pages | 43 |
Year | 2016 |
Publisher | IOP Publishing |
Place of Publication | United States |
ISSN | 0004-6280 |
1538-3873 | |
Digital Object Identifier (DOI) | https://doi.org/10.1088/1538-3873/128/964/066001 |
Web Address (URL) | http://iopscience.iop.org/article/10.1088/1538-3873/128/964/066001 |
Abstract | The Second Workshop on Extreme Precision Radial Velocities defined circa 2015 the state of the art Doppler precision and identified the critical path challenges for reaching 10 cm s−1 measurement precision. The presentations and discussion of key issues for instrumentation and data analysis and the workshop recommendations for achieving this bold precision are summarized here. Beginning with the High Accuracy Radial Velocity Planet Searcher spectrograph, technological advances for precision radial velocity (RV) measurements have focused on building extremely stable instruments. To reach still higher precision, future spectrometers will need to improve upon the state of the art, producing even higher fidelity spectra. This should be possible with improved environmental control, greater stability in the illumination of the spectrometer optics, better detectors, more precise wavelength calibration, and broader bandwidth spectra. Key data analysis challenges for the precision RV community include distinguishing center of mass (COM) Keplerian motion from photospheric velocities (time correlated noise) and the proper treatment of telluric contamination. Success here is coupled to the instrument design, but also requires the implementation of robust statistical and modeling techniques. COM velocities produce Doppler shifts that affect every line identically, while photospheric velocities produce line profile asymmetries with wavelength and temporal dependencies that are different from Keplerian signals. Exoplanets are an important subfield of astronomy and there has been an impressive rate of discovery over the past two decades. However, higher precision RV measurements are required to serve as a discovery technique for potentially habitable worlds, to confirm and characterize detections from transit missions, and to provide mass measurements for other space-based missions. The future of exoplanet science has very different trajectories depending on the precision that can ultimately be achieved with Doppler measurements. |
Keywords | spectrographic techniques; statistical methods; radial velocities |
ANZSRC Field of Research 2020 | 510109. Stellar astronomy and planetary systems |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | Massey University, New Zealand |
University of Hertfordshire, United Kingdom | |
Carnegie Institution of Washington, United States | |
Pulkovo Observatory, Russia | |
University of Chicago, United States | |
Aix-Marseille University, France | |
University of Copenhagen, Denmark | |
Leibniz Institute for Astrophysics, Germany | |
Physical Research Laboratory, India | |
University of Notre Dame, United States | |
Pennsylvania State University, United States | |
National Institute of Standards and Technology, United States | |
University of Geneva, Switzerland | |
Center for Astrophysics Harvard and Smithsonian, United States | |
University of Texas at Austin, United States | |
University of Porto, Portugal | |
New York University, United States | |
Fibretech Optica, Canada | |
Massachusetts Institute of Technology, United States | |
Ohio State University, United States | |
University of British Columbia, Canada | |
Aarhus University, Denmark | |
Karl Schwarzschild Observatory, Germany | |
Pierre and Marie Curie University, France | |
Institute of Space Sciences, Spain | |
University of Hawaii, United States | |
Center for Astrophysics Harvard and Smithsonian, United States | |
e2v Technologies, United Kingdom | |
Yale University, United States | |
University of California, United States | |
Cornell University, United States | |
National Aeronautics and Space Administration (NASA), United States | |
Missouri State University, United States | |
Lowell Observatory, United States | |
Heidelberg University, Germany | |
Georg August University of Gottingen, Germany | |
INAF - Astrophysical Observatory of Turin, Italy | |
Menlo Systems, Germany | |
Space Telescope Science Institute, United States | |
University of New South Wales | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q3x7z/state-of-the-field-extreme-precision-radial-velocities
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