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The Stellar Imager (SI)"Vision Mission"The Stellar Imager (SI) is a "Vision" mission in the Sun-Earth Connection (SEC) Roadmap, conceived for the purpose of understanding the effects of stellar magnetic fields, the dynamos that generate them, and the internal structure and dynamics of the stars in which they exist. The ultimate goal is to achieve the best possible forecasting of solar/stellar magnetic activity and its impact on life in the Universe. The science goals of SI require an ultra-high angular resolution, at ultraviolet wavelengths, on the order of 100 micro-arcsec and thus baselines on the order of 0.5 km. These requirements call for a large, multi-spacecraft (less than 20) imaging interferometer, utilizing precision formation flying in a stable environment, such as in a Lissajous orbit around the Sun-Earth L2 point. SI's resolution will make it an invaluable resource for many other areas of astrophysics, including studies of AGN s, supernovae, cataclysmic variables, young stellar objects, QSO's, and stellar black holes. ongoing mission concept and technology development studies for SI. These studies are designed to refine the mission requirements for the science goals, define a Design Reference Mission, perform trade studies of selected major technical and architectural issues, improve the existing technology roadmap, and explore the details of deployment and operations, as well as the possible roles of astronauts and/or robots in construction and servicing of the facility.
Document ID
20040074336
Document Type
Conference Paper
Authors
Carpenter, Ken (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Danchi, W. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Leitner, J. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Liu, A. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Lyon, R. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Mazzuca, L. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Moe, R. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Chenette, D. (Lockheed Martin Advanced Technology Center Palo Alto, CA, United States)
Karovska, M. (Smithsonian Astrophysical Observatory Cambridge, MA, United States)
Allen, R. (Space Telescope Science Inst. Baltimore, MD, United States)
Date Acquired
August 21, 2013
Publication Date
January 1, 2004
Subject Category
Astrophysics
Meeting Information
204th Meeting fo the American Astronomical Society(Denver, CO)
Distribution Limits
Public
Copyright
Other