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Precision astrometry mission for exoplanet detection around binary stars

Bendek, Eduardo A. and Tuthill, Peter and Guyon, Olivier and Vasisht, Gautam and Belikov, Ruslan and Larkin, Kieran and Beichman, Charles and Shao, Michael and Mamajek, Eric and Sirbu, Dan and Coyle, Laura (2018) Precision astrometry mission for exoplanet detection around binary stars. In: Space Telescopes and Instrumentation 2018: Optical, Infrared, and Millimeter Wave. Proceedings of SPIE. No.10698. Society of Photo-optical Instrumentation Engineers (SPIE) , Bellingham, WA, Art. No. 106980G. ISBN 9781510619494. http://resolver.caltech.edu/CaltechAUTHORS:20180731-135628598

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Abstract

We propose an innovative low-cost mission capable of detecting potentially habitable planets around a sample of solar-type stars near the sun. Our mission will deliver relative measurements of stellar position and motion at sub-micro acrsecond precision. These data, in turn, will reveal the presence of orbiting exoplanets. For the case of our primary targets Alpha Centauri A & B, objects below one Earth mass will be accessible when the end-of-mission astrometric precision requirement of 0.4 micro-arcsecond is achieved. The technique will directly reveal not only the presence of the planet but deliver fundamental data such as masses and 3-D orbital parameters including eccentricity and inclination. This paper describes the optical and mechanical architecture of the mission and first-order instrument design. We also explain the instrument stability requirements imposed by the diffractive pupil post-processing calibration limitations. Our design baseline is a stable two-mirror telescope that images the field directly on CCD camera minimizing the number of reflections and optical components.


Item Type:Book Section
Related URLs:
URLURL TypeDescription
https://doi.org/10.1117/12.2313919DOIArticle
ORCID:
AuthorORCID
Guyon, Olivier0000-0002-1097-9908
Additional Information:© 2018 Society of Photo-optical Instrumentation Engineers (SPIE).
Record Number:CaltechAUTHORS:20180731-135628598
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20180731-135628598
Official Citation:Eduardo A. Bendek, Peter Tuthill, Olivier Guyon, Gautam Vasisht, Ruslan Belikov, Kieran Larkin, Charles Beichman, Michael Shao, Eric Mamajek, Dan Sirbu, Laura Coyle, "Precision astrometry mission for exoplanet detection around binary stars", Proc. SPIE 10698, Space Telescopes and Instrumentation 2018: Optical, Infrared, and Millimeter Wave, 106980G (10 July 2018); doi: 10.1117/12.2313919; https://doi.org/10.1117/12.2313919
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:88390
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:31 Jul 2018 22:08
Last Modified:31 Jul 2018 22:08

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