Mar 15 – 20, 2020
Europe/Berlin timezone

eROSITA ISM investigation via X-ray shadowing

Not scheduled




Dr Michael Freyberg (MPE)


Since the ROSAT era X-ray shadows cast by opaque molecular cloud onto distant soft X-ray emission are an useful tool to disentangle the 3d-structure along the line-of-sight, when comparing on-cloud and off-cloud spectra.
Here we report on initial X-ray shadowing results obtained from data taken during the eROSITA pointed observation phase, before the start of the all-sky surveys.
We outline the analysis procedure (in particular background handling) and compare our findings with corresponding observations from the ROSAT all-sky survey and from XMM-Newton.

Presenter status eROSITA consortium member

Primary authors

Dr Michael Freyberg (MPE) Peter Predehl (Max-Planck-Institut für Exteraterrestrische Physik) Manami Sasaki (Dr. Karl Remeis Observatory, University of Erlangen-Nurnberg) Andy Strong Werner Becker (Max-Planck Institut für extraterr. Physik)

Presentation materials

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