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Maser astrometry wi...
Maser astrometry with VLBI and the SKA
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- Green, J.A. (författare)
- SKA Organisation
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- van Langevelde, H.J. (författare)
- Universiteit Leiden (UL),Leiden University (UL)
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Brunthaler, Andreas (författare)
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visa fler...
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- Ellingsen, S. (författare)
- University of Tasmania
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- Imai, H. (författare)
- Kagoshima University
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- Vlemmings, Wouter, 1974 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Reid, M. (författare)
- Harvard-Smithsonian Center for Astrophysics
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- Richards, A. (författare)
- University of Manchester
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visa färre...
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(creator_code:org_t)
- 2014
- 2014
- Engelska.
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Ingår i: Proceedings of Science. - 1824-8039. ; 9-13-June-2014
- Relaterad länk:
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https://research.cha...
Abstract
Ämnesord
Stäng
- We discuss the unique opportunities for maser astrometry with the inclusion of the Square Kilometre Array (SKA) in Very Long Baseline Interferometry (VLBI) networks. The first phase of the SKA will enable observations of hydroxyl and methanol masers, positioning the latter to an accuracy of 5 microarcseconds, and the second phase may allow water maser observations. These observations will provide trigonometric distances with errors as small as 1%. The unrivalled sensitivity of the SKA will enable large-scale surveys and, through joint operations, will turn any VLBI network into a fast astrometry device. Both evolved stars and high mass star formation regions will be accessible throughout the (Southern) Milky Way, completing our understanding of the content, dynamics and history of our Galaxy. Maser velocities and proper motions will be measurable in the Local Group of galaxies and beyond, providing new insights into their kinematics and evolution.
Ämnesord
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
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