Astronomy and Astrophysics – Astronomy
Scientific paper
Feb 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011iaus..275..102d&link_type=abstract
Jets at all Scales, Proceedings of the International Astronomical Union, IAU Symposium, Volume 275, p. 102-103
Astronomy and Astrophysics
Astronomy
Sgr A*, Mhd, Radiation Mechanisms: General, Plasmas, Radiative Transfer, Diffusion, Acceleration Of Particles
Scientific paper
We obtained the first spectral predictions from a simulation of the Galactic Center to include radiative processes internally. We performed simulations with and without cooling, with and without spin, and for different initial configurations of the magnetic field, in order to test the effect on jet launching and inner accretion disk characteristics. By exploring parameter space, we will attempt to place new constraints on the controversial question about the presence or not of a jet from Sgr A*, as well as study jet launching in general. We have shown that, as expected, the spin of the BH affects the structure of the jet. The presence of cooling also strongly influences the inner structure of the accretion disk and therefore affects jet launching. These results show that radiative cooling is not negligible, as is usually assumed for the very underluminous supermassive BH, Sgr A*. On the contrary, the inclusion of cooling has a very visible influence on the accretion disk. Furthermore it creates an important difference in the resulting spectra.
Dibi Salomé
Drappeau Samia
Fragile Chris
Markoff Sera
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