Table A.4
Interferometric beam characterisation for 3 Puppis VLTI/MATISSE observations.
| Spectral band | FWHMx (mas) | FWHMy (mas) |
|---|---|---|
| L-band | 4.83 | 3.17 |
| M-band | 7.20 | 4.75 |
| N-band | 12.80 | 8.45 |
Notes. Results from fitting a two-dimensional (2D) Gaussian distribution to the synthesised beam (also known as the dirty beam) to characterise the angular resolution achieved by the observations in each spectral band of VLTI/MATISSE. The dirty beam is obtained by applying the inverse Fourier transform of the (u, v)-coverage. ‘FWHMx ’ and ‘FWHMy’ represent the full width at half maximum along the x- and y-axes respectively, for the 2D Gaussian distribution, with a position angle (PA) of 25.23°. This elliptical beam represents the instrument’s point spread function (PSF).
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