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Irradiation of an Accretion Disc by a Jet: General Properties and Implications for Spin Measurements of Black HolesX-ray irradiation of the accretion disc leads to strong reflection features, which are then broadened and distorted by relativistic effects. We present a detailed, general relativistic approach to model this irradiation for different geometries of the primary X-ray source. These geometries include the standard point source on the rotational axis as well as more jet-like sources, which are radially elongated and accelerating. Incorporating this code in the RELLINE model for relativistic line emission, the line shape for any configuration can be predicted. We study how different irradiation geometries affect the determination of the spin of the black hole. Broad emission lines are produced only for compact irradiating sources situated close to the black hole. This is the only case where the black hole spin can be unambiguously determined. In all other cases the line shape is narrower, which could either be explained by a low spin or an elongated source. We conclude that for those cases and independent of the quality of the data, no unique solution for the spin exists and therefore only a lower limit of the spin value can be given
Document ID
20140011103
Acquisition Source
Goddard Space Flight Center
Document Type
Preprint (Draft being sent to journal)
Authors
T.Dauser (Remeis Observatory Bamberg, Germany)
Garcia, J. (Maryland Univ. College Park, MD, United States)
Wilms, J. (Remeis Observatory Bamberg, Germany)
Boeck, M. (Remeis Observatory Bamberg, Germany)
Brenneman, L. W. (Harvard-Smithsonian Center for Astrophysics Cambridge, MA, United States)
Falanga, M. (International Space Science Inst. Bern, Switzerland)
Fukumura, Keigo (Maryland Univ. Baltimore County Catonsville, MD, United States)
Reynolds, C. S. (Maryland Univ. College Park, MD, United States)
Date Acquired
August 27, 2014
Publication Date
January 31, 2013
Publication Information
Publisher: MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
Subject Category
Astrophysics
Report/Patent Number
GSFC-E-DAA-TN11184
Funding Number(s)
CONTRACT_GRANT: NNG06EO90A
Distribution Limits
Public
Copyright
Public Use Permitted.
Keywords
Accretion Disc
Spin Measurements
General Properties

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