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Light rays and wave fronts in strong gravity

In: Contributions of the Astronomical Observatory Skalnaté Pleso, vol. 48, no. 3
V. Karas - Y. Kojima - D. Kunneriath
Detaily:
Rok, strany: 2018, 446 - 455
Kľúčové slová:
Black holes, Accretion, accretion disks, General relativity
O článku:
Accretion onto black holes often proceeds via an accretion disk or a temporary disk-like pattern. Variability features observed in light curves as well as theoretical models of accretion flows suggest that accretion disks tend to be inhomogeneous — variety of substructures (clumps) emerge within the flow. Rapid orbital motion of individual clumps then modulates the observed signal in X-rays. Furthermore, changes of spectral lines and polarization properties of the observed signal (or the absence of changes) constrain the models and reveal information about general relativity (GR) effects. In this write-up we summarize the basic equations that have been employed to study light propagation near black holes and to derive the radiation signal that can be expected at a detector within the framework of geometrical optics approximation.
Ako citovať:
ISO 690:
Karas, V., Kojima, Y., Kunneriath, D. 2018. Light rays and wave fronts in strong gravity. In Contributions of the Astronomical Observatory Skalnaté Pleso, vol. 48, no.3, pp. 446-455. 1335-1842.

APA:
Karas, V., Kojima, Y., Kunneriath, D. (2018). Light rays and wave fronts in strong gravity. Contributions of the Astronomical Observatory Skalnaté Pleso, 48(3), 446-455. 1335-1842.