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Observing the WHIM with Athena

AuthorsBrand, T.; Wilms, Jörn; Dauser, T.; Peille, P.; Cobo, Beatriz CSIC ORCID ; Ceballos, María Teresa CSIC ORCID ; Hartog, Roland H. den; Kaastra, Jelle; O'Brien, P.; Barcons, Xavier CSIC ORCID ; Piro, Luigi; Herder, J. W. den; Barret, Didier
Issue Date2016
PublisherSPIE digital library
CitationProceedings of SPIE 9905: 99055F (2016)
AbstractWe present simulations of the detection probability for absorption lines from ions in the warm and hot ionized medium (WHIM) with Athena in the spectra of Gamma-ray burst afterglows. The simulations are based on Swift XRT lightcurves of these afterglows and are performed using the end-to-end simulation framework SIXTE. We simulate both the case of single and multiple absorption lines, as well as results for line searches in absorption structures from a more complex medium. We show that the Athena X-IFU can detect WHIM lines with strong Ovii lines (equivalent widths larger than 0.14 eV) in spectra containing 3 x 106 counts.
DescriptionEvent: SPIE Astronomical Telescopes + Instrumentation, 2016, Edinburgh, United Kingdom.
Publisher version (URL)https://doi.org/10.1117/12.2234442
Appears in Collections:(IFCA) Artículos
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