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The Method of Transfer Functions to Describe GR Effects in Spectra and Polarisation from Black-hole Accretion Disks
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SYSNO ASEP 0520225 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title The Method of Transfer Functions to Describe GR Effects in Spectra and Polarisation from Black-hole Accretion Disks Author(s) Karas, Vladimír (ASU-R) RID, ORCID
Bursa, Michal (ASU-R) RID, ORCID
Dovčiak, Michal (ASU-R) RID, ORCIDSource Title Radiative Signatures from the Cosmos: A Conference in Honor of Ivan Hubený. - San Francisco : Astronomical Society of the Pacific, 2019 / Werner K. - ISSN 1050-3390 - ISBN 9781583819265 Pages s. 293-298 Number of pages 6 s. Publication form Online - E Action Conference on Radiative Signatures from the Cosmos Event date 23.10.2018 - 26.10.2018 VEvent location Paris Country FR - France Event type WRD Language eng - English Country US - United States Keywords line-profiles ; emission ; accretion disks Subject RIV BN - Astronomy, Celestial Mechanics, Astrophysics OECD category Astronomy (including astrophysics,space science) R&D Projects LTAUSA17095 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) GC19-01137J GA ČR - Czech Science Foundation (CSF) Institutional support ASU-R - RVO:67985815 UT WOS 000494866300045 Annotation We briefly review a fruitful approach to compute a variety of radiation signatures of General Relativity (GR) originating from accretion disks in strong gravity. A set of transfer functions can be pre-computed and then employed to accelerate the ray-traycing computations, generate a series of model spectra, and to fit the model predictions to actual data sets in X-rays. We have been developing this method to examine spectra and light curves and to model the expected polarimetric properties - in particular, to analyse the properties of the corona disk-line geometry with GR effects taken into account. New impetus to this activity is emerging in the anticipation of upcoming missions equipped with the sensitivity to polarimetric properties in X-rays: IXPE (Imaging X-Ray Polarimetry Explorer) and eXTP (enhanced X-ray Timing and Polarimetry mission). Workplace Astronomical Institute Contact Radka Svašková, bibl@asu.cas.cz, Tel.: 323 620 326 Year of Publishing 2020
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