Talks

Introduction

On this page, some of my public and scientific talks are available. All talks are presented in a list.

Talk overview

1. Magnetic Launching of AGN-Jets
2. Experimental Evidence of Black Holes
3. An introduction to Brane World Cosmology
4. A brief history of Black Holes
5. Relativistic Emission Lines of Accreting Black Holes
6. Cosmic Jets as Sources for ultra-high energetic Neutrinos
7. Gamma Ray Bursts
8. The first sources of light in the Early Universe and the highest plausible redshift of luminous Quasars

• date: Dezember 15 2006
• (invited colloquium talk)

• multiwavelength observations of AGN jets
• mm-VLBI of AGN jets
• active galactic nuclei (AGN)
• structure of black holes (Schwarzschild vs. Kerr)
• role of rapidly rotating black holes
• Kerr metric in Boyer-Lindquist form
• Kerr metric in Kerr-Schild form
• formation of AGN jets: Blandford-Znajek vs. Blandford-Payne
• ansatz for GRMHD simulations
• problems and tricks in GRMHD coding
• list of GRMHD groups/codes
• status report on current GRMHD simulations
• Poynting flux dominated jets
• centrifugally and gas pressure driven jets
• magneto-rotational instability (MRI)
• ray tracing of GRMHD data
• theory vs. observations
• outlook on GRMHD: radiative GRMHD etc.

• pdf file

• date: September 01 2006
• (invited seminar talk)

• black hole basics
• gravitation al collapse of stars
• X-ray binary Cyg X-1
• short and long gamma-ray bursts
• anisotropic fireball model
• GRB030227
• active galactic nuclei (AGN)
• accretion physics
• Eddington's argument
• formation of AGN jets
• ray tracing
• black hole detection methods
• 3rd Keplerian law
• M-σ relation
• Galactic Centre black hole
• relativistic iron lines
• gravitational redshift
• gravitational lenses
• stellar tidal disrutions
• gravitational waves
• black hole spin measurements
• evidence for classical black holes
• alternatives to static black hole
• curvature invariants
• avoidance of singularities in loop quantum gravity

• pdf file

• date: March 03 2004
• (seminar talk)

• standard cosmology
• motivation for brane cosmology
• terminology: bulk, brane
• string theory, supersymmetry
• extra dimensions
• compactification
• ADD scenario and large extra dimensions
• Randall-Sundrum models
• 1-brane system
• 2-brane system
• brane cosmology with scalar fields
• dynamical branes
• ekpyrotic scenario
• cyclic universe
• open questions in brane cosmology

• ppt file
• pdf file

• date: January 30 2004
• (students talk)

• black holes as solutions of Einstein's field equations
• Schwarzschild and Kerr solution
• black hole structure and characteristic radii
• frame-dragging
• black hole mass scale
• gravitational collapse to stellar black holes
• observations of stellar black holes
• supermassive black holes in galaxies and AGN
• AGN paradigm
• Sgr A* - the rotating supermassive in the centre of the Milky Way
• M-σ relation
• accreting black holes: magnetohydrodynamical simulations
• MHD jets from the ergosphere
• relativistic ray tracing of rotating black holes
• relativistic emission lines
• gravastars
• Hawking radiation
• worm holes
• dynamical horizon
• black holes in string theories
• branes

• ppt file
• pdf file

• date: May 21 2003
• (seminar talk)

• AGN paradigm
• AGN X-ray spectra
• X-ray fluorescence and coronal illumination
• relativistic ray tracing of rotating black holes
• plasma kinematics around rotating black holes
• accretion theory and radiation mechanism
• radial drift and disk truncation
• simulated disk distributions: GR Doppler factor and emission
• emission lines: computation, parameter studies, classification, observation

• ppt file
• pdf file

• inclination study
  
• Kerr parameter study
  
• inner disk edge study
  
• outer disk edge study
  
• truncation radius study
  

• date: December 12 2002
• (invited talk)

• AGN taxonomy
• origin of ultrahighenergetic protons and neutrinos
• jet formation from rotatingn supermassive black holes
• cosmic jets: morphology, collimation and acceleration
• AGN jets
• GRB jets
• relativistic hadronic and leptonic jets
• physics of microquasars
• microquasars: SS 433 & Co.
• cosmic rays
• Fermi acceleration
• Proton blazars
• neutrino rates of AGN and microquasar jets
• implications of UHE neutrino astrophysics

• ppt file
• reference list (txt file)

• date: May 22 2002
• (seminar talk)

• GRB discovery
• isotropic distribution of GRBs at the sky
• bimodale histogram: long and short GRBs
• GRB physics: collapsar model and CO merger
• isotropic and anisotropic fireball model
• relativistic GRB jets
• GRB afterglow
• extra light: supernova connection
• dark and orphan GRBs
• hyper accretion and neutrino cooling
• efficiency of neutrino annihilation
• GRB relics: GRBRs

• ppt file

• date: May 30 2001
• (seminar talk)

• cosmological setup: ΛCDM cosmos
• fragmentation of primordial objects: protogalactic DM clumps
• first stars: population III
• star formation and hierarchical structure formation
• quasars
• Lyman alpha forest
• proximity effect
• ionisations fronts in the intergalactic medium (IGM)
• hydrogen and helium reionisation
• definition of filling factor
• simulations of reionisation era (Gnedin 2000)
• sources of reionisation: quasare vs. first stars
• Loeb-Rybicki halo
• 21cm tomography
• stellar formation rate (SFR): z-dependence
• instruments
• future developments to SSS (small scale structure)

• ppt file

Font types

If you use powerpoint you need the following TrueType fonts

• Almanac,
• Arial,
• Symbol,
• Verdana,
• Wingdings 1,2,3
• Xerox Sans Serif Wide.

Copyright

All files are protected by copyright lae. Please download the files for private use only. Otherwise contact me, please.
Material used in the talks is almost public. Owners are indicated and referenced. Some movies and animations must be extra downloaded. You can find the URI in the corresponding talk. Please note that movies (mpg, mpeg) have to be included after downloading the ppt!

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© Andreas Müller, August 2007