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The ins and outs of emission from accreting black holes
Drappeau, S.
Publication date
2013
Link to publication
Citation for published version (APA):
Drappeau, S. (2013). The ins and outs of emission from accreting black holes.
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Propositions of this thesis
1. Above a certain mass accretion rate, radiative losses can have a signif-icant impact on the dynamics within GRMHD simulations, and should thus not be neglected. [Chapter 2 and 3]
2. The effect of radiative losses on the dynamics in GRMHD simulation increases with accretion rate. [Chapters 2 and 3]
3. The self-consistent treatment of radiative transfer in GRMHD simu-lations is the next step towards the investigation of higher luminosity sources. [Chapter 2]
4. Spectra self-consistently calculated from radiatively cooled GRMHD simulations of accretion flows onto Sgr A∗provides the best description of the data of Sgr A∗ for a mass accretion rate of ∼ 2 × 10−9M
yr−1 and a spin in the range of 0.7 < a∗< 0.9. [Chapter 3].
5. Lepto-hadronic spectral jet models will help determine the composition of astrophysical jets by paving the way towards self-consistent multi-messenger analyses of accreting black hole emission [Chapter 4]. 6. Time-dependent studies of high-energy transient sources will widen the
range of tools at our disposal to investigate the ins and outs of accreting black holes and understand the processes behind the production of the most energetic particles in the Universe. [Chapter 5]
7. Starting a Ph.D. is like jumping in a pool without knowing how to swim. At first, you struggle just to keep your head above the water. But, with time, you develop your own personal way of doing research like swimmers develop their own personal style of swimming.
8. Young researchers, drowning under important and urgent deadlines, should remember what research really is: a game we play to satisfy our mind and curiosity. And, like in every game, we should enjoy it, and not endure it, to release our creativity and produce great research.
Samia Drappeau April 2013, Amsterdam
