First Radial Velocity Results From the MINiature Exoplanet Radial Velocity Array (MINERVA)
Article
Article Title | First Radial Velocity Results From the MINiature Exoplanet Radial Velocity Array (MINERVA) |
---|---|
ERA Journal ID | 1082 |
Article Category | Article |
Authors | Wilson, Maurice L. (Author), Eastman, Jason D. (Author), Cornachione, Matthew A. (Author), Wang, Sharon X. (Author), Johnson, Samson A. (Author), Sliski, David H. (Author), Schap, William J., III (Author), Morton, Timothy D. (Author), Johnson, John Asher (Author), McCrady, Nate (Author), Wright, Jason T. (Author), Wittenmyer, Robert A. (Author), Plavchan, Peter (Author), Blake, Cullen H. (Author), Swift, Jonathan J. (Author), Bottom, Michael (Author), Baker, Ashley D. (Author), Barnes, Stuart I. (Author), Berlind, Perry (Author), Blackhurst, Eric (Author), Beatty, Thomas G. (Author), Bolton, Adam S. (Author), Cale, Bryson (Author), Calkins, Michael L. (Author), Colon, Ana (Author), de Vera, Jon (Author), Esquerdo, Gilbert (Author), Falco, Emilio E. (Author), Fortin, Pascal (Author), Garcia-Mejia, Juliana (Author), Geneser, Claire (Author), Gibson, Steven R. (Author), Grell, Gabriel (Author), Groner, Ted (Author), Halverson, Samuel (Author), Hamlin, John (Author), Henderson, M. (Author), Horner, J. (Author), Houghton, Audrey (Author), Janssens, Stefaan (Author), Jonas, Graeme (Author), Jones, Damien (Author), Kirby, Annie (Author), Lawrence, George (Author), Luebbers, Julien Andrew (Author), Muirhead, Philip S. (Author), Myles, Justin (Author), Nava, Chantanelle (Author), Rivera-García, Kevin O. (Author), Reed, Tony (Author), Relles, Howard M. (Author), Riddle, Reed (Author), Robinson, Connor (Author), Chaput de Saintonge, Forest (Author) and Sergi, Anthony (Author) |
Journal Title | Publications of the Astronomical Society of the Pacific |
Journal Citation | 131 (1005), pp. 1-19 |
Number of Pages | 19 |
Year | 2019 |
Publisher | IOP Publishing |
Place of Publication | United States |
ISSN | 0004-6280 |
1538-3873 | |
Digital Object Identifier (DOI) | https://doi.org/10.1088/1538-3873/ab33c5 |
Web Address (URL) | https://iopscience.iop.org/article/10.1088/1538-3873/ab33c5 |
Abstract | The MINiature Exoplanet Radial Velocity Array (MINERVA) is a dedicated observatory of four 0.7 m robotic telescopes fiber-fed to a KiwiSpec spectrograph. The MINERVA mission is to discover super-Earths in the habitable zones of nearby stars. This can be accomplished with MINERVA’s unique combination of high precision and high cadence over long time periods. In this work, we detail changes to the MINERVA facility that have occurred since our previous paper. We then describe MINERVA’s robotic control software, the process by which we perform 1D spectral extraction, and our forward modeling Doppler pipeline. In the process of improving our forward modeling procedure, we found that our spectrograph’s intrinsic instrumental profile is stable for at least nine months. Because of that, we characterized our instrumental profile with a time-independent, cubic spline function based on the profile in the cross dispersion direction, with which we achieved a radial velocity precision similar to using a conventional “sum-of-Gaussians” instrumental profile: 1.8 m s<SUP>-1</SUP> over 1.5 months on the RV standard star HD 122064. Therefore, we conclude that the instrumental profile need not be perfectly accurate as long as it is stable. In addition, we observed 51 Peg and our results are consistent with the literature, confirming our spectrograph and Doppler pipeline are producing accurate and precise radial velocities. |
Keywords | Astrophysics - Instrumentation and Methods for Astrophysics; Astrophysics - Earth and Planetary Astrophysics |
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. |
Institution of Origin | University of Southern Queensland |
Byline Affiliations | Center for Astrophysics Harvard and Smithsonian, United States |
University of Utah, United States | |
Carnegie Institution of Washington, United States | |
Ohio State University, United States | |
University of Pennsylvania, United States | |
University of Florida, United States | |
University of Montana, United States | |
Pennsylvania State University, United States | |
Centre for Astrophysics | |
George Mason University, United States | |
Thacher School, United States | |
California Institute of Technology (Caltech), United States | |
Stuart Barnes Optical Design, Netherlands | |
PlaneWave Instruments, United States | |
University of Arizona, United States | |
National Optical Astronomy Observatory, United States | |
Missouri State University, United States | |
Dartmouth College, United States | |
Las Cumbres Observatory, United States | |
University of California, United States | |
University of Maryland, United States | |
Massachusetts Institute of Technology, United States | |
Callaghan Innovation, New Zealand | |
University of Colorado Boulder, United States | |
Prime Optics, Australia | |
Boston University, United States | |
Stanford University, United States | |
University of Puerto Rico, Puerto Rico |
https://research.usq.edu.au/item/q5750/first-radial-velocity-results-from-the-miniature-exoplanet-radial-velocity-array-minerva
186
total views10
total downloads10
views this month0
downloads this month