Open Access

Table A.3

List of the stars used to calibrate the VLTI/MATISSE observations of 3 Puppis.

3 Pup observation
Night | Time (UTC)
LM calibration star N calibration star
Name Type FL (Jy) θUD,L (mas) Name Type FN (Jy) θUD,N (mas)
2020-02-15 100h33m01s HD 56618 M2 196 5.50 * q Car K2 46 5.23
2020-02-20 | 04h54m 13s * 140 Pup K3 86 2.90 * q Car K2 46 5.23
2020-02-27 | 04h08m 18s * eps Ant K3 88 2.86 * q Car K2 46 5.23
2024-03-10 | 00h57m35s HD 59610 K3 52 1.11 * bet Ori B8 38 2.71
2024-03-10 | 04h46m33s HD 59610 K3 52 1.11 * bet Cnc K4 35 4.91

Notes. Observations were conducted with the observing sequence ‘CAL-SCI-CAL’ to better the calibration of the absolute visibility. ‘CAL’ refers to the calibration star and ‘SCI’ for the science target 3 Puppis. θUD stands for the measured uniform-disc angular diameter of the calibration stars (the index ‘L’ refers to the measurement made in the L-band and ‘N’ to the N-band). Spectral type, flux and angular diameter of calibrations are provided by the MDFC catalogue (Cruzalèbes et al. 2019). The starting observation time is given in the UTC convention and with the units of hours:minutes:seconds.

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