Speaker
Description
We implemented the first half-sky SRG/eROSITA upper limit database to provide X-ray photometric data and flux upper limit to every position in the Western Galactic hemisphere. The eROSITA flux upper limits can be crucial for understanding the physical and statistical properties of variable objects, transients, and even large numbers of sources detected at wavelengths other than X-rays.
In this contribution, I will show how these eROSITA upper limits can complement data from the XMM-Newton catalogs and other X-ray astronomy missions (via HILIGT), providing decades-long light curves for selected sources. I will also describe the process of retrieving SRG/eROSITA upper limits, eROSITA data, X-ray aperture photometry procedure, upper limit calculation via a Bayesian approach, and the final data products.
