Počet záznamů: 1

Near-infrared polarimetry as a tool for testing properties of accreting supermassive black holes

  1. 1.
    0359497 - ASU-R 2012 RIV GB eng J - Článek v odborném periodiku
    Zamaninasab, M. - Eckart, A. - Dovčiak, Michal - Karas, Vladimír - Schoedel, R. - Witzel, G. - Sabha, N. - García-Marín, M. - Kunneriath, D. - Muzic, K. - Straubmeier, C. - Valencia-S, M. - Zensus, J. A.
    Near-infrared polarimetry as a tool for testing properties of accreting supermassive black holes.
    Monthly Notices of the Royal Astronomical Society. Roč. 413, č. 1 (2011), s. 322-332 ISSN 0035-8711
    Grant CEP: GA ČR GA205/07/0052
    Výzkumný záměr: CEZ:AV0Z10030501
    Klíčová slova: polarimetry * black holes * relativity * galactic centre
    Kód oboru RIV: BN - Astronomie a nebeská mechanika, astrofyzika
    Impakt faktor: 4.900, rok: 2011

    A new method of searching for the time-lag between orthogonal polarization channels is developed and applied to an ensemble of hotspot models that samples a wide range of parameter space. We found that the hotspot model predicts signatures in polarized light which are in the range to be measured directly in the near future. The results of the application of the method to the available near-infrared polarimetric data of Sagittarius A* (Sgr A*) are presented. It is shown that even with the currently available data, the spin and inclination of Sgr A* can be constrained.
    Trvalý link: http://hdl.handle.net/11104/0197278