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The origin of the unfocused XMM-Newton background, its variability and lessons learned for ATHENA
Fabio Gastaldello, Martino Marelli, Silvano Molendi +7
We analyzed the unexposed to the sky outFOV region of the MOS2 detector on board XMM-Newton covering 15 years of data amounting to 255 Ms. We show convincing evidence that the orig…
Time Domain Astronomy with the THESEUS Satellite
S. Mereghetti, S. Balman, M. Caballero-Garcia +74
THESEUS is a medium size space mission of the European Space Agency, currently under evaluation for a possible launch in 2032. Its main objectives are to investigate the early Univ…
Analysis of the unconcentrated background of the EPIC-pn camera on board XMM-Newton
Martino Marelli, Silvano Molendi, Mariachiara Rossetti +8
Our understanding of the background of the EPIC/pn camera onboard XMM-Newton is incomplete. This affects the study of extended sources and can influence the predictions of the back…
Prediction and understanding of soft proton contamination in XMM-Newton: a machine learning approach
E. A. Kronberg, F. Gastaldello, S. Haaland +10
One of the major and unfortunately unforeseen sources of background for the current generation of X-ray telescopes are few tens to hundreds of keV (soft) protons concentrated by th…
A science gateway for Exploring the X-ray Transient and variable sky using EGI Federated Cloud
Daniele D'Agostino, Luca Roverelli, Gabriele Zereik +7
Modern soft X-ray observatories can yield unique insights into time domain astrophysics, and a huge amount of information is stored - and largely unexploited - in data archives. Li…
A citizen science exploration of the X-ray transient sky using the EXTraS science gateway
Daniele D'Agostino, Duncan Law-Green, Mike Watson +6
Modern soft X-ray observatories can yield unique insights into time domain astrophysics, and a huge amount of information is stored - and largely unexploited - in data archives. Li…
Monte Carlo simulations of soft proton flares: testing the physics with XMM-Newton
Valentina Fioretti, Andrea Bulgarelli, Giuseppe Malaguti +2
Low energy protons (<100-300 keV) in the Van Allen belt and the outer regions can enter the field of view of X-ray focusing telescopes, interact with the Wolter-I optics, and reach…
A magnetic diverter for charged particle background rejection in the SIMBOL-X telescope
D. Spiga, V. Fioretti, A. Bulgarelli +6
Minimization of charged particle background in X-ray telescopes is a well known issue. Charged particles (chiefly protons and electrons) naturally present in the cosmic environment…
A decline and fall in the future of Italian Astronomy?
Angelo Antonelli, Vincenzo Antonuccio-Delogu, Andrea Baruffolo +89
On May 27th 2010, the Italian astronomical community learned with concern that the National Institute for Astrophysics (INAF) was going to be suppressed, and that its employees wer…