6533b862fe1ef96bd12c74b4

RESEARCH PRODUCT

Acoustic astrometry with a VLBI-like interferometer

J. M. MarcaideIvan Marti-vidal

subject

PhysicsInterferometryOpticsSpace and Planetary Sciencebusiness.industryVery-long-baseline interferometryAstronomyAstronomy and AstrophysicsAstrometrybusiness

description

AbstractWe show how loud-speakers, home digital recorders, and a common personal computer can be used to emulate VLBI observations on a small scale. These audio-VLBI observations allow for single-field astrometry (sources within the same interferometric field), differential group-delay astrometry, etc. These experiments can be set up very easily and in many possible configurations. Students may find these experiments very useful to learn about the innermost details of the interferometric technique.

https://doi.org/10.1017/s1743921308020073