A search for the optical counterpart to the magnetar CXOU J010043.1-721134

TL;DR

This study attempted to identify the optical counterpart of the magnetar CXOU J010043.1-721134 using HST imaging but did not confirm the initial detection, providing deep photometric limits and field star photometry.

Contribution

The paper reports a follow-up observational study that refines the search for the magnetar's optical counterpart and sets new photometric constraints.

Findings

Initial optical counterpart detection was not confirmed.

Deep photometric limits established in four bands.

Photometry of surrounding field stars was provided.

Abstract

After our tentative detection of an optical counterpart to CXOU J010043.1-721134 from archival Hubble Space Telescope (HST) imaging, we have followed up with further images in four bands. Unfortunately, the source originally identified is not confirmed. We provide deep photometric limits in four bands and accurate photometry of field stars around the location of the magnetar.