Imaging the Surfaces and Interiors of Other Stars: The Stellar Imager (SI) Mission Concept

Details Imaging the Surfaces and Interiors of Other Stars: The Stellar Imager (SI) Mission Concept Imaging the Surfaces and Interiors of Other Stars: The Stellar Imager (SI) Mission Concept

Oct 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003csss...12.1091c&link_type=abstract

The Future of Cool-Star Astrophysics: 12th Cambridge Workshop on Cool Stars, Stellar Systems, and the Sun (2001 July 30 - August

Astronomy and Astrophysics

Astrophysics

Stellar Imager, Interferometers, Stellar Activity, Magnetic Activity, Future Space Missions

Scientific paper

The Stellar Imager (SI) is envisioned as a large (0.5 km diameter) space-based, UV-optical interferometer. It is designed to image surface features and, through asteroseismology, sub-surface structures of other stars and measure their spatial and temporal variations. These observations are needed to improve our understanding of the underlying dynamo process(es) and enable improved forecasting of solar/stellar activity and its impact on planetary climates and life. Schrijver and Carpenter (this volume) discuss the science goals of the mission in detail, while in this paper we discuss the performance requirements implied by the science goals and how these translate into specific design requirements on the mission architecture, and we present some preliminary visions for how the required observations (e.g., 1000 pixel, 100 micro-arcsec resolution, UV-optical images of the surface of nearby dwarf stars) for this ambitious project might be obtained.

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