Comment on "Cosmic radio dipole from NVSS and WENSS"

TL;DR

This paper refutes a recent correction to the calculation of the cosmic radio dipole, arguing that the correction is erroneous and that previous estimates of the observer's motion should be restored.

Contribution

It identifies and corrects an error in the recent literature regarding Doppler boosting effects in cosmic radio dipole calculations.

Findings

The recent correction to the dipole calculation is incorrect.

Previous estimates of the observer's motion should be reinstated.

The corrected formula impacts the interpretation of cosmic radio dipole measurements.

Abstract

We show that a recent purported correction to the effects of Doppler boosting of flux density in an erstwhile published formula for calculating the observer's motion from the cosmic radio dipole in sky brightness is erroneous. The thereby computed downward correction in the estimated magnitude for the observer's motion needs to be scrapped and the results derived therefore need to be reverted back to their erstwhile values.