Yes

1 we recall here that due to the use of single-mode fibers, the intensity profiles a) and b) are fixed and depend only on the configuration of the instrument.

Fig. 4. Outputs of the calibration procedures. Examples have been chosen for a given wavelength A = 2.2 |J,m. Left: the v\ functions. Middle: the matrix containing the carrying waves; the first three columns are the Cj functions for each baseline, and the last three columns are the respective d^j functions. One can see that for each baseline, c]j and d]j are in quadrature. Right: another representation of the carrying waves. From top to bottom, both sinusoidal functions correspond to columns 1-4, 2-5, and 3-6 of the calibration matrix

Fig. 4. Outputs of the calibration procedures. Examples have been chosen for a given wavelength A = 2.2 |J,m. Left: the v\ functions. Middle: the matrix containing the carrying waves; the first three columns are the Cj functions for each baseline, and the last three columns are the respective d^j functions. One can see that for each baseline, c]j and d]j are in quadrature. Right: another representation of the carrying waves. From top to bottom, both sinusoidal functions correspond to columns 1-4, 2-5, and 3-6 of the calibration matrix

Computing the djj function from cj and 70 is straightforward (see Fig. 4, middle and right).

4.2 Estimation of Photometric and Coherent fluxes Photometric Fluxes — DC Subtraction

As discussed previously, the estimation of the photometric fluxes is straightforward, given the vj functions (see (7)). Hence, the DC corrected interfero-gram, namely, mk, can be computed (Fig. 5, left and middle):

Fig. 5. Steps of the fringe fitting part of the AMBER data reduction. (Left) recorded interferogram ik (DC component over-plotted); (Middle) DC component-corrected interferogram mk, now centered around 0. (Right): fit of the mk by the carrying waves

Coherent Flux — fringe Fitting:

Equation (9) can then be rewritten

Ntel mk

0 0

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