Bright Source Capabilities of the Athena WFI and X-IFU Instrument
Abstract
We are using end-to-end simulations to quantify the bright sourcecapabilities of the Athena WFI and X-IFU instrument. For this purposesource images and spectra are used as input to fully simulate thepredicted events on the detector, which are then converted to eventlists, spectra, and images. This contribution will explain the different pile-up effects for both instruments and analyse their impacton the efficiency of the detector and the spectral shape. With thisapproach we are able to estimate limiting fluxes, below which spectraare not significantly affected by pile-up effects. Additionally, the direct impact of pile-up on estimated parameters for core science cases such as measuring the spin of black holes or absorption by the WHIM is investigated.
- Publication:
-
Exploring the Hot and Energetic Universe: The first scientific conference dedicated to the Athena X-ray observatory
- Pub Date:
- September 2015
- Bibcode:
- 2015eheu.conf...70D