AAS 204th Meeting, June 2004
Session 25 The UV/Optical Universe at Ulta-High Angular Resolution
Special Session, Monday, May 31, 2004, 2:00-3:30pm, 707/709

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[25.02] The Universe at High Angular Resolution

M. Karovska (CfA)

Sub-milliarsecond resolution in the UV-optical domain, combined with the unique spectral diagnostics available at these wavelengths, will be an invaluable resource for many areas of astrophysical research in the 21st century. Increasing the angular resolution to the sub-milliarsecond level will result in an advance of at least two orders of magnitude compared to that provided by HST and will lead to unprecedented opportunities for astrophysical studies of the observable Universe. Simultanous attainment of ultra high resolution and observation of faint objects is technically very difficult, and the inevitable compromises must be driven by the science goals. In this talk I will highlight the potential of these capabilities to address current observational challenges. Examples include direct imaging of inner disk regions and planet forming environments within several stellar radii of YSOs, and of the atmospheric structures in evolved stars; studies of origins of winds and outflows in large variety of sources ranging from stars to AGNs; exploring accretion processes in protostars and in a variety of interacting binaries; improvement of the cosmic distance scale, and others.

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