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. For variable objects, transients, or a large number of sources detected at wavelengths other than X-rays, eROSITA flux upper limits can be crucial to understanding their physical and statistical properties. Thus, the eROSITA flux upper limits can contribute to important scientific goals such as the investigation of long-term X-ray variability, the search and discovery of new transients, and timing analysis. We provide a detailed description of the process of retrieving SRG/eROSITA upper limits for a large set of input positions, as well as of the eROSITA data, the X-ray aperture photometry, the upper limit calculation via a Bayesian approach, and the final data products. We also characterize the architecture of the database and the web tool, which are designed to handle large queries of input positions.
