Friday, December 21, 2012

1212.4949 (Ahmadjon Abdujabbarov et al.)

Shadow of Kerr-Taub-NUT black hole    [PDF]

Ahmadjon Abdujabbarov, Farruh Atamurotov, Yusuf Kucukakca, Bobomurat Ahmedov, Ugur Camci
The shadow of a rotating black hole with nonvanishing gravitomagnetic charge has been studied. It was shown that in addition to the angular momentum of black hole the gravitomagnetic charge term deforms the shape of the black hole shadow. From the numerical results we have obtained that for a given value of the rotation parameter, the presence of a gravitomagnetic charge enlarges the shadow and reduces its deformation with respect to the spacetime without gravitomagnetic charge. Finally we have studied the capture cross section for massive particles by black hole with the nonvanishing gravitomagnetic charge.
View original: http://arxiv.org/abs/1212.4949

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