Unveiling the origin of the optical and UV emission during the 2017 giant outburst of the Galactic ULX pulsar Swift J0243.6+6124 (Corrigendum)

TL;DR

This paper corrects a previous model of optical/UV emission in the 2017 outburst of Swift J0243.6+6124 by including X-ray irradiation of a misaligned Be disk, leading to better data fits.

Contribution

The study introduces a revised model incorporating X-ray irradiation of a misaligned Be disk to accurately explain optical/UV emissions during the outburst.

Findings

Updated model fits observational data well.

X-ray irradiation of a misaligned disk is significant.

Previous overestimation of Be star surface contribution corrected.

Abstract

An error was detected in the code of one of the components considered to model the optical/UV emission of the Galactic ULX pulsar Swift J0243.6+6124 during its 2017 giant outburst. This led to an overestimation of the contribution from the X-ray heated surface of the Be star. The addition of the X-ray irradiation of a misaligned Be disk to our model is proposed to explain the observations. Preliminary results of the updated model provide good fit to the data.