Visit of prof. Vincenzo Antonuccio at CFT

On January 7-28, we held a visit of professor Vincenzo Antonuccio-Delogu, from INAF and Astronomical Observatory of Catania in Italy. He is a specialist in the processes related to the emission and propagation of relativistic jets, launched from the centers of Active Galactic Nuclei. Our discussions concentrated on the modeling of possible feedback of the jet with the host galaxy environment, and activity of the central black hole. Vincenzo Antonuccio gave at our Institute the Wednesday colloqium, which can be found under CFT youtube link (coming soon).

VAD_22oct2013


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Article about jets variability accepted to ApJ

The article on “The MRI imprint on the short GRB jets” by Konstantinos Sapountzis and Agnieszka Janiuk has been finally accepted  to the Astrophysical Journal. The accepted version after all revisions is now available under this link. The work shows how minimum variability timescale of the jet, emerging from an accreting black hole that formed after the binary neutron star merger is connected with the timescale of the magneto-rotational instablity in the accretion disk. Our simulations reveal the variability of the maximum achievable Lorentz factor, in terms of the total energy flux (Poynting plus thermal), as normalized to the mass flux. The quantity denoted in figure below by “mu”, is derived from the special relativistic jet theory.

 

mu_compare


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Visiting scholar joined our team

From January 2019, the new Visiting Scholar joined our team, under the European grant on the Mobility Agreement.

Dr Martin Kolos, from the Silesian University in Opava, will work in the CFT Astrophysics group on the numerical simulations of non-axisymmetric accretion onto black hole.


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