Apellaniz, J. M., Paez, E. T., Negueruela, I., Narna, R. H., Simón Díaz, S., Lorenzo, J., Sota, A., Gamen, R. C., Farina, C., Salas, J., Caballero, J. A., Morrell, N. I., Pellerín, A., Alfaro, E. J., Herrero, A., Arias, J. I., Marco, A. (2020). MONOS: Multiplicity Of Northern O-type Spectroscopic systems I. Project description and spectral classifications and visual multiplicity of previously known objects (vol 626, A20, 2019). Astronomy and Astrophysics, 639 DOI: 10.1051/0004-6361/201935359e
An inconsistency in the header information of some AstraLux files was detected after the publication of the paper. As a result, the heliocentric Julian date (HJD) of some of the observations was incorrectly listed in Table A.1. The error was half a day at most and it only affects systems with long periods, so the difference is irrelevant for any orbit calculation given the uncertainties involved. Nevertheless, we provide an updated version of Table A.1 with the appropriate corrections.
