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Finding Earth clones with SIM: The most promising near-term technique to detect, find masses for, and determine three-dimensional orbits of nearby habitable planets

Shao, Michael and Unwin, Stephen C. and Beichman, Charles and Catanzarite, Joseph and Edberg, Stephen J. and Marr, James C., IV and Marcy, Geoffrey (2007) Finding Earth clones with SIM: The most promising near-term technique to detect, find masses for, and determine three-dimensional orbits of nearby habitable planets. In: Techniques and Instrumentation for Detection of Exoplanets III. Proceedings of SPIE. No.6693. Society of Photo-optical Instrumentation Engineers (SPIE) , Bellingham, WA, Art. No. 66930C. ISBN 9780819468413. https://resolver.caltech.edu/CaltechAUTHORS:20180731-151509501

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Abstract

SIM is a space astrometric interferometer capable of better than one-microarcsecond (µas) single measurement accuracy, providing the capability to detect stellar "wobble" resulting from planets in orbit around nearby stars. While a search for exoplanets can be optimized in a variety of ways, a SIM five-year search optimized to detect Earth analogs (0.3 to 10 Earth masses) in the middle of the habitable zone (HZ) of nearby stars would yield the masses, without M*sin(i) ambiguity, and three-dimensional orbital parameters for planets around ~70 stars, including those in the HZ and further away from those same stars. With >200 known planets outside our solar system, astrophysical theorists have built numerical models of planet formation that match the distribution of Jovian planets discovered to date and those models predict that the number of terrestrial planets (< 10 M_⊕) would far exceed the number of more massive Jovian planets. Even so, not every star will have an Earth analog in the middle of its HZ. This paper describes the relationship between SIM and other planet detection methods, the SIM planet observing program, expected results, and the state of technical readiness for the SIM mission.


Item Type:Book Section
Related URLs:
URLURL TypeDescription
https://doi.org/10.1117/12.734671DOIArticle
ORCID:
AuthorORCID
Beichman, Charles0000-0002-5627-5471
Marcy, Geoffrey0000-0002-2909-0113
Additional Information:© 2007 Society of Photo-Optical Instrumentation Engineers (SPIE).
Group:Infrared Processing and Analysis Center (IPAC)
Series Name:Proceedings of SPIE
Issue or Number:6693
DOI:10.1117/12.734671
Record Number:CaltechAUTHORS:20180731-151509501
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20180731-151509501
Official Citation:Michael Shao, Stephen C. Unwin, Charles Beichman, Joseph Catanzarite, Stephen J. Edberg, James C. Marr, Geoffrey Marcy, "Finding Earth clones with SIM: the most promising near-term technique to detect, find masses for, and determine three-dimensional orbits of nearby habitable planets", Proc. SPIE 6693, Techniques and Instrumentation for Detection of Exoplanets III, 66930C (19 September 2007); doi: 10.1117/12.734671; https://doi.org/10.1117/12.734671
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:88404
Collection:CaltechAUTHORS
Deposited By: George Porter
Deposited On:31 Jul 2018 22:54
Last Modified:16 Nov 2021 00:26

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