Outputs (2)

Digging a little deeper: characterizing three new extreme ULX candidates (2023)
Journal Article
Roberts, T. P., Walton, D. J., Mackenzie, A. D. A., Heida, M., & Scaringi, S. (2023). Digging a little deeper: characterizing three new extreme ULX candidates. Monthly Notices of the Royal Astronomical Society, 525(3), 3330-3343. https://doi.org/10.1093/mnras/stad2367

A prime motivation for compiling catalogues of any celestial X-ray source is to increase our numbers of rare subclasses. In this work, we take a recent multimission catalogue of ultraluminous X-ray sources (ULXs) and look for hitherto poorly-studied... Read More about Digging a little deeper: characterizing three new extreme ULX candidates.

The hyperluminous X‐ray source population (2023)
Journal Article
MacKenzie, A., Roberts, T., & Walton, D. (2023). The hyperluminous X‐ray source population. Astronomische Nachrichten, 344(4), Article e230028. https://doi.org/10.1002/asna.20230028

We have recently published a catalog of 1843 candidate ultraluminous X-ray sources (ULXs). This is the largest catalog of ULXs to date and was built by cross-correlating recent serendipitous source catalogs from the XMM-Newton, Swift, and Chandra obs... Read More about The hyperluminous X‐ray source population.