ngVLA: Astrometry and Long Baseline Science
Mark Reid, Laurent Loinard, Thomas Maccarone
TL;DR
This paper discusses how the ngVLA's long baselines enable ultra-precise astrometry and imaging, opening new possibilities for astrophysical research beyond current capabilities.
Contribution
It introduces the potential of the ngVLA for high-precision astrometry and imaging, highlighting its capabilities for addressing key astrophysical problems.
Findings
Astrometric accuracy surpasses Gaia's goals.
Enables sub-milliarcsecond imaging.
Facilitates micro-arcsecond astrometry.
Abstract
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.
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Taxonomy
TopicsAstronomy and Astrophysical Research · Adaptive optics and wavefront sensing · Calibration and Measurement Techniques