Recent advances in VLBI have led to astrometric accuracy exceeding that of the Gaia mission goals. This chapter describes some important astrophysical problems that can be addressed with sub-milliarcsecond imaging and micro-arcsecond astrometry using the ngVLA with long baselines.
@article{arxiv.1810.06577,
title = {ngVLA: Astrometry and Long Baseline Science},
author = {Mark Reid and Laurent Loinard and Thomas Maccarone},
journal= {arXiv preprint arXiv:1810.06577},
year = {2018}
}
Comments
To be published in the ASP Monograph Series, "Science with a Next-Generation VLA", ed. E. J. Murphy (ASP, San Francisco, CA); 9 pages; 2 figures