Simulations of accretion disks in pseudo‐complex General Relativity

Abstract

After a summary on pseudo-complex General Relativity (pc-GR), circular orbits and stable orbits in general are discussed, including predictions compared to observations. Using a modified version of a model for accretions disks, presented by Page and Thorne in 1974, we apply the raytracing technique in order to simulate the appearance of an accretion disk as it should be observed in a detector. In pc-GR we predict a dark ring near a very massive, rapidly rotating object.

Predictions of the pseudo‐complex general relativity

“…Though the disk model used is not the most involved one (we decided to use it for its simplicity), all disk models, however, being as involved as they are (see for example Kluzniak & Rappaport 2007), should show the same relative structure in intensity. Further simulations of accretion disks can be found in Hess et al (2015b), where the intensity is given in bolometric units and the accretion rate Ṁ0 is set arbitrarily to 1. Nevertheless, the main structure of a disk in GR and pcGR can be observed also there.…”

“…Further simulations of accretion disks can be found in Hess et al (), where the intensity is given in bolometric units and the accretion rate is set arbitrarily to 1. Nevertheless, the main structure of a disk in GR and pcGR can be observed also there.…”

Kerr Black Holes within a Modified Theory of Gravity

“…The theory predicts a different behavior of an accretion disc near the black hole, showing a dark ring followed by a bright one further in. Studies on this were also published in [14,15] and more recently in [16,17]. The main feature is the ring structure, mentioned above, which is quite independent from the mass of the black hole and the type of the accretion disc (if it is thin, thick, a torus, .…”

Testing pseudo‐complex general relativity with gravitational waves

“…Ray-tracing of light rays in this geometry has been previously calculated in Schönenbach et al (2014) with an eye to comparing predictions to observations from the Event Horizon Telescope. Simulations of accretion disks have been studied to compare to X-ray observations of accreting systems (Hess et al (2015)), associated with an innermost stable circular orbit (ISCO). Further studies E-mail: alex.nielsen@aei.mpg.de have looked at the effect on gravitational redshift and framedragging (Schönenbach et al (2013)).…”