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| Paper: |
Gravitational Lenses and VLBI |
| Volume: |
340, Future Directions in High Resolution Astronomy: The 10th Anniversary of the VLBA |
| Page: |
433 |
| Authors: |
Biggs, A. |
| Abstract: |
The earliest VLBI observations of gravitational lenses (1979-80) quickly demonstrated the power of VLBI to resolve lensed images and provide important constraints on the lensing mass. I summarise the ways in which VLBI observations have contributed to our knowledge and understanding of lens systems, not only through the detection of multiply-imaged substructure on mas-scales, but also by their ability to probe the conditions in the ISM of (high-redshift) lensing galaxies via effects such as Faraday rotation, depolarisation and scatter-broadening. I conclude with a consideration of what the future holds for VLBI observations of lens systems. |
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