Speaker
Description
Pulsating ultraluminous X-ray sources (PULXs) are difficult to find. In the decade since the first detection, only ~ 10 PULXs have been identified, a consequence of searching for faint, often transient signals in faint, often transient sources. In an attempt to expand the known population of PULXs we have undertaken new analyses of archival and newly-acquired data, focussing on objects with similar observational characteristics to known PULXs, including high variability amplitudes over weeks to years, and high luminosity and spectral hardness. We report the detection of possible pulsations in two transient objects, that may reveal two new candidate PULXs, and discuss whether or not these signals are believable. We also highlight how a new catalogue of ULXs from eRASS1 is widening the pool of candidates for future PULX searches.
