Angular resolution of the EVN
The finest angular resolution of an interferometer (in radians) is given by the ratio of the observing wavelength to the maximum baseline.
Baseline Length
Table of EVN (and some global) baseline lengths (in km).
Maximum Angular Resolution
The maximum angular resolution (in milliarcseconds) of some typical EVN and Global VLBI arrays are presented below:
| Array | 90 cm | 18cm | 6cm | 3.6 cm | 1.3 cm | 0.7cm |
|---|---|---|---|---|---|---|
| EVN | - | 15 | 5 | 3 | 1 | 0.6 |
| EVN (inc. Sh/Ur) | 30 | 5 | 1.5 | 1 | 0.3 | 0.15 |
| EVN+VLBA | 19 | 3 | 1 | 0.7 | 0.25 | 0.13 |
Even higher resolution observations were possible using ground-based arrays together with the Japanese SVLBI orbiting radio telescope, Halca.
Last modified: March 26, 2004
EVN webmaster (jive@jive.nl)
EVN webmaster (jive@jive.nl)