.pdf-Version des Kommentierten Vorlesungsverzeichnisses

Kommentiertes Vorlesungsverzeichnis Sommersemester 2018

Logo der Fachgruppe Physik-Astronomie der Universität Bonn

physics639  Advanced Topics in High Energy Particle Physics
Tu 10-12, Th 12-14, HS, HISKP
  Instructor(s): Ph. Bechtle, N. Wermes
  Prerequisites: BSc Degree
physics611: Particle Physics (Master Course)
not alone sufficient: Nuclear and Particle Physics (Bachelor Course)
  Contents: see comments:
in particular:
- CKM and PMNS flavor matrices
- mixing angles and their determination
- neutrino physics
- quark flavor physics
- matter-antimatter oscillations
- CP violation
- rare decays
  Literature: M. Thomson, Modern Particle Physics – Cambridge University Press (2013) (here: Chapter 12, 13)

V. Barger, D. Marfatia, K. Whisnant, The physics of neutrinos, Princeton University Press, 2012.

further literature will be given at the start of the lecture
  Comments: The topics in this lecture generally address particle physics beyond "physics611"
except "Collider Physics (LHC, ILC)" (although quite some of the topics are or have been done at colliders).
The focus will be on "flavor physics", i.e. lepton and quark flavors.
physics636  Advanced Theoretical Particle Physics
Tu 16-18, Th 10, HS I, PI
  Instructor(s): M. Drees
  Prerequisites: Theoretical Particle Physics 1; some knowledge of quantum field theory is expected in some parts of the lecture.
  Contents: Neutrino oscillations and neutrino masses;
Grand Unified Theories;
  Literature: G. Ross, Grand Unified Theories, discusses both supersymmetric and non-supersymmetric GUTs.
Drees, Godbole and Roy, Theory and Phenomenology of Sparticles, gives an in-depth treatment of supersymmetry, with emphasis on phenomenological aspects.
Peskin and Schroeder, An Introduction to Quantum Field Theory, treats the underlying formalism, but also contains many particle physics applications
physics637 Advanced Theoretical Hadron Physics
We 14-17, SR I, HISKP
  Instructor(s): A. Nogga, A. Rusetsky
  Prerequisites: Advanced Quantum Mechanics, Quantum Field Theory 1, Theoretical Hadron Physics 1 (preferable)

  1. Notion of an effective field theory

  2. Appelquist-Carrazzone theorem

  3. Renormalization group, relevant/marginal/irrelevant operators

  4. Matching

  5. Symmetries and Ward identities; Euler-Heisenberg Lagrangian

  6. Ward identities in QCD

  7. Anomalies

  8. Effective Chiral Lagrangian; CCWZ method

  9. Wess-Zumino-Witten Lagrangian

  10. Chiral Perturbation Theory at tree level: overview

  11. Meson sector: loops, renormalization, LECs, power counting

  12. Relativistic baryon ChPT; the breakdown of the power counting

  13. HB ChPT, infrared regularization, EOMS scheme

  14. Heavy quark effective theories


  1. J.F. Donoghue, E. Golowicz and B.R. Holstein, Dynamics of the Standard Model, Cambridge. University
    Press (Cambridge, 1992).

  2. S. Scherer,M.R. Schindler, A Primer for Chiral Perturbation Theory, Springer (Heidelberg, 2012).

  3. M.E. Peskin, D.V. Schroeder, An Introduction to Quantum Field Theory, Perseus (Reading, 1995).

physics712  Advanced Electronics and Signal Processing
Tu 9, Th 10-12, HS, HISKP
  Instructor(s): P.-D. Eversheim, H. Krüger
  Prerequisites: Mandatory: Electronics lab course
Recommended: Electronics for Physicists
  Contents: This lecture addresses basic concepts, techniques, and electronics necessary to identify and handle relevant events in complex data streams or detector arrays, respectively. Advantages and limits of analogue and digital electronics will be explained and can be experienced by means of three major topics.

  1. Hands on experiment at the Bonn Isochronous Cyclotron: Set up electronics to identify whether an ejectile was a Proton, Deuteron, 3He or α particle. Set up electronics to discriminate Neutrons from Gammas by pulse shape.

  2. Understand the potential of Digital Signal Processors (DSP). The hard- and software aspects are discussed and demonstrated by means of an experimental DSP-board. The demonstrations will focus on digital signal conditioning and filtering.

  3. Hands on course in Field Programmable Gate Array (FPGA) programming.

  Comments: The experiments at the Bonn Isochronous Cyclotron will take place on 4 afternoons
physics713 Particle Detectors and Instrumentation
Tu 14-16, We 14, Konferenzraum II, PI 1.049, PI
  Instructor(s): H. Schmieden, T.C. Jude
  Prerequisites: Completed B.Sc. in Physics, with experience in quantum mechanics, atomic- and nuclear physics
  Contents: Quark structure of mesons and baryons, nucleon excitation; electromagnetic probes, electron
accelerators, photon beams, relativistic kinematics, interaction of radiation with matter, detectors for
photons, leptons and hadrons;
Main issue is the hands-on laboratory course: setup of detectors and experiment at ELSA,
and a real experiment will be performed to observe excited states of the proton through meson
production with high-energetic photon beams.
  Literature: B. Povh, K. Rith, C. Scholz, F. Zetsche; Teilchen und Kerne (Springer, Heidelberg 6. Aufl. 2004)
Perkins; Introduction to High Energy Physics (Cambridge University Press 4. Aufl. 2000)
W. R. Leo; Techniques for Nuclear and Particle Detection (Springer, Heidelberg 2. Ed. 1994)
K. Kleinknecht; Detektoren für Teilchenstrahlung (Teubner, Wiesbaden 4. überarb. Aufl. 2005)
physics716 Statistical Methods of Data Analysis
Fr 10-12, HS, IAP
  Instructor(s): J. Dingfelder
  Prerequisites: Some prior basic knowledge of particle physics would be helpful, but is not absolutely necessary.
  Contents: From the first lab course that you take to the design and construction of an experiment; from the first
simulations to the final analysis of the data from our experiment, the proper application of statistical
methods is essential.

The aim of this course is to provide a foundation in statistical methods and to give some concrete
examples of how the methods are applied to data analysis. Standard statistical distributions will be
discussed and examples given of when they are expected to occur and how they are related.

Techniques for fitting data will be discussed. The treatment of systematic errors, as well as methods to
combine results from different experiments which may have common error sources will also be covered.

The search for new physics, even when no signal is observed, allows limits to be placed on the size of
possible effects. These can provide severe constraints on theoretical models. Methods for calculating upper
limits taking into account several error sources will also be considered.
  Literature: R. J. Barlow: Statistics
V. Blobel and E. Lohrmann: Statistische und numerische Methoden der Datenanalyse
F. James: Statistical methods in experimental physics
Glen Cowan: Statistical Data Analysis
physics718 Programming in Physics and Astronomy with C++ or Python
  Instructor(s): T. Erben, O. Cordes
  Prerequisites: The course does not require prior programming knowledge. Basic knowledge on Unix/Linux is beneficial.
  Contents: The Python-version of the course is offered in SS2018

  • A thorough introduction to scientific computing with the easy-to-learn, high-level programming language Python

  • Introduction to numpy-arrays (primary Python-data structure for
    scientific computing)

  • Introduction to the scientific-python modules (scipy)

  • Interactive work / development with Python

  • Plotting and visualization of scientific data with python (the matplotlib module)

  • Version control / collaborative software development

  Literature: All required course materials will be made available online

  1. The lectures are hands-on with every student working on an own computer in the CIP-Pools of the Physics and Astronomy departments

  2. The course is offered two times:

    • Wed., 13:00 - 16:00 (astronomy department by Thomas Erben)

    • Fr., 08:00 - 11:00 (physics department by Oliver Cordes)

  3. Prior registration for the course is necessary (limited number of computers in the CIP-Pools)

physics721  BCGS Intensive Week (Advanced Topics in Hadron Physics)
Hadron Physics Summer School (HPSS 2018), September 24th-28th 2018, JUFA Jülich
  Instructor(s): C. Hanhart, B. Kubis, A. Nogga, A. Thiel, A. Wirzba et al.
  Prerequisites: The school aims at advanced undergraduate and graduate students in the field of hadron physics or accelerator physics.
  Contents: The school comprises lectures and working groups (from which each participant joins one) on theoretical, experimental, and accelerator aspects. The focus is on current issues in hadron physics with emphasis on current and future programs at the accelerators COSY (Jülich), ELSA (Bonn), LHC (CERN), CEBAF (Jefferson Lab), BEPC (Beijing) and FAIR (Darmstadt) featuring experiments like PANDA, Crystal Barrel, LHCb, CLAS, BESIII, Belle II as well as the search for electric dipole moments of charged particles in storage rings (JEDI) and neutrino physics.
  Comments: Registration deadline is May 15, 2018. The registration form is available on the webpage.
physics722  Advanced Gaseous Detectors - Theory and Practice
Mo 10-12, HS, IAP, Fr 12, SR I, HISKP
  Instructor(s): K. Desch, J. Kaminski
  Contents: You will acquire detailed knowledge about the physics of gaseous detectors.
The theory of the important processes will be discusses in lectures and the knowledge will be deepened by simulations in the exercises. There will also be lab work, e.g. assembling a detector, which will be used for basic measurements.

  1. Blum, Rolandi, Riegeler, Particle Detection with Drift chambers, Springer

  2. Kolanoski, Wermes, Teilchendetektoren, Springer

  3. F. Sauli, Gaseous Radiation Detectors, Cambridge University Press

physics740  Hands-on Seminar: Experimental Optics and Atomic Physics
Mo 9-11, IAP
  Dozent(en): M. Weitz u.M.
  Erforderliche Vorkenntnisse: Optik- und Atomphysik Grundvorlesungen, Quantenmechanik
  Inhalt: Diodenlaser
Optische Resonatoren
Akustooptische Modulatoren
und vieles mehr
  Literatur: wird gestellt
  Bemerkungen: Vorbesprechung am Montag, den 9.4.18, 9 c.t.,
Hörsaal IAP, 3. Stock Wegelerstr. 8

Seminartermine ab 16.4.18
physics754 General Relativity and Cosmology
Mo 10-12, We 11, HS, HISKP
  Instructor(s): B. Metsch
  Prerequisites: physik221 and physik321 (Theoretical Physics I and II)
optional: some differential geometry
  Contents: Relativity principle;
Gravitation in relativistic mechanics;
Curvilineal coordinates;
Curvature and energy-momentum tensor;
Einstein-Hilbert action and the equations of the gravitational field;
Black holes;
Gravitational waves;
Time evolution of the universe;
Friedmann-Robertson-Walker solutions.
  Literature: [1] L.D. Landau, J.M. Lifschitz: Lehrbuch der theoretischen Physik (Band 2) Klassische Feldtheorie, Harri Deutsch, ISBN 3817113277 (also available in English: Classical Field Theory);
[2] C.W. Misner, K.S. Thorne, J.A. Wheeler: Gravitation, W.H. Freeman, ISBN 0-7167-0344-0;
[3] B.F. Schutz: A first course in general relativity, Cambridge University Press, ISBN 0-521-27703-5;
[4] S. Weinberg: Gravitation and Cosmology: Principles and Applications of the General Theory of Relativity, John Wiley, ISBN 0-471-92567-5;
physics773  Physics in Medicine: Fundamentals of Medical Imaging
Mo 10-12, We 12, SR I, HISKP
  Instructor(s): K. Lehnertz
  Prerequisites: BSc
  Contents: Introduction to physical imaging methods and medical imaging
(1) Physical fundamentals of transmission computer tomography (Röntgen-CT), positron emission
computer´tomography (PET), magnetic resonance imaging (MRI) and functional MRI
(1a) detectors, instrumentation, data acquisition, tracer, image reconstruction, BOLD effect
(1b) applications: analysis of structure and function
(2) Neuromagnetic (MEG) and Neuroelectrical (EEG) Imaging
(2a) Basics of neuroelectromagnetic activity, source models
(2b) instrumentation, detectors, SQUIDs
(2c) signal analysis, source imaging, inverse problems, applications
  Literature: 1. H. Morneburg (Hrsg.): Bildgebende Systeme für die medizinische Diagnostik, Siemens, 3. Aufl.
2. P. Bösiger: Kernspin-Tomographie für die medizinische Diagnostik, Teubner
3. Ed. S. Webb: The Physics of Medical Imaging, Adam Hilger, Bristol
4. O. Dössel: Bildgebende Verfahren in der Medizin, Springer, 2000
5. W. Buckel: Supraleitung, VCH Weinheim, 1993
6. E. Niedermeyer/F.H. Lopes da Silva; Electroencephalography, Urban & Schwarzenberg, 1998
More literature will be offered
physics7502 Random Walks and Diffusion
Do 14-18, SR II, HISKP
Beginn: Anfang Juni
  Instructor(s): G. Schütz
  Prerequisites: Quantum Mechanics, Thermodynamics
  Contents: Probability spaces, Master equation and Langevin equation, Law of large numbers and Central Limit Theorem, Dynamical scaling, First passage problems, Dynamical scaling.
  Literature: N.G. van Kampen, Stochastic Processes in Physics and Chemistry (Elsevier, Amsterdam, 1992).

G.M. Sch\"utz, in: Phase Transitions and Critical Phenomena,
Vol. 19, eds. C. Domb and J.L. Lebowitz, (Academic Press, London, 2001).
  Comments: Start: 07/06/2018; Two hours of lecture (14:15 - 15:45), followed by two hours
of exercise classes.
physics651 Seminar on Detectors in Nuclear and Particle Physics
Mo 16 s.t. -18, SR I, HISKP
*Please Note: First seminar will take place on April 16 (discussion of topics and assignment of speakers)*
  Instructor(s): I. Brock, K. Desch, J. Dingfelder, B. Ketzer, F. Klein, N. Wermes
  Prerequisites: BSc in physics, introduction to nuclear and particle physics (Physik 5)
Useful: Lecture on Physics of Particle Detectors
  Contents: The seminar will discuss the fundamentals and techniques of particle detection (tracking, particle
identification, calorimetry, ...) in nuclear and particle physics using modern detectors/experiments and
developments of new detector techniques as examples.
  Literature: W.R. Leo Techniques for Nuclear and Particle Physics Experiments
K. Kleinknecht Detektoren für Teilchenstrahlung
D. Green The Physics of Particle Detectors
G. Knoll Radiation Detection and Measurement
Special literature will be provided by the tutors of the individual contributions.
  Comments: The seminar is a joint seminar between the universities of Bonn and Cologne within the Bonn-Cologne
Graduate School and is open to all students.
The seminar will take place in Bonn (HISKP SR I).

The first seminar will take place on April 16 (discussion of topics and assignment of speakers)
physics652  Seminar on Quantum Technology
Mo 14-16, HS, IAP
  Instructor(s): D. Meschede
  Prerequisites: Lectures on Quantum Physics (basic, advanced)
Lectures on Modern Atomic and Optical Physics
  Contents: We will select topics on the following general subjects:

Quantum Sensing
Quantum Communication
Quantum Simulation
Quantum Computing
  Literature: Overview:
Michael Raymer: Quantum Physics What Everyone Needs to Know
Oxford University Press

European Commission
  Comments: We expect a preparation (and maturation) period of at least 6 weeks. It is thus advisable to select and start your topic as early as possible.
physics656 Seminar Medical Physics: Physical Fundamentals of Medical Imaging
Mo 14-16, SR I, HISKP
  Instructor(s): K. Lehnertz
  Prerequisites: Bsc
  Contents: Physical Imaging Methods and Medical Imaging of Brain Functions
Emission Computer Tomography (PET)
- basics
- tracer imaging
- functional imaging with PET
Magnetic Resonance Imaging (MRI)
- basics
- functional MRI
- diffusion tensor imaging
- tracer imaging
Biological Signals: Bioelectricity, Biomagnetism
- basics
- recordings (EEG/MEG)
- source models
- inverse problems
  Literature: 1. O. Dössel: Bildgebende Verfahren in der Medizin, Springer, 2000
2. H. Morneburg (Hrsg.): Bildgebende Systeme für die medizinische Diagnostik,
Siemens, 3. Aufl.
3. H. J. Maurer / E. Zieler (Hrsg.): Physik der bildgebenden Verfahren in der Medizin,
4. P. Bösiger: Kernspin-Tomographie für die medizinische Diagnostik, Teubner
5. Ed. S. Webb: The Physics of Medical Imaging, Adam
  Comments: Time: Mo 14 - 16 and one lecture to be arranged
6820 Research Internship / Praktikum in der Arbeitsgruppe
Setup and test of detector components and MC simulations for the COMPASS@CERN and BGO-OD@ELSA experiments. Data analysis using ROOT
pr., ganztägig, Dauer ca. 2-4 Wochen, Zeit n.V., PI
  Instructor(s): H. Schmieden
  Prerequisites: Physik V (Nuclear and Particle Physics) or equivalent
  Contents: Setup and test of detector components and Monte Carlo simulations for the COMPASS@CERN and
BGO-OD@ELSA experiments. Data analysis using ROOT.
  Comments: Duration 2 – 4 weeks (part time), by individual agreement
6826 Praktikum in der Arbeitsgruppe: Neurophysik, Computational Physics, Zeitreihenanalyse
pr, ganztägig, ca. 4 Wochen, n. Vereinb., HISKP u. Klinik für Epileptologie
  Instructor(s): K. Lehnertz u.M.
  Prerequisites: basics of programming language
  Contents: This laboratory course provides insight into the current research activities of the Neurophysics group.
Introduction to time series analysis techniques, neuronal modelling, complex networks.
Opportunity for original research on a topic of own choice, with concluding presentation to the group.
  Literature: Working materials will be provided.
  Comments: Contact:
Prof. Dr. K. Lehnertz
email: klaus.lehnertz@ukb.uni-bonn.de
6834  Praktikum in der Arbeitsgruppe: Vorbereitung und Durchführung optischer und atomphysikalischer Experimente, Mitwirkung an Forschungsprojekten der Arbeitsgruppe / Laboratory in the Research Group: Preparation and conduction of optical and atomic physics experiments, Participation at research projects of the group (D/E)
pr, ganztägig, 2-6 Wochen n. Vereinb., IAP
  Dozent(en): M. Weitz u.M.
  Erforderliche Vorkenntnisse: Optik und Atomphysik Grundvorlesungen, Quantenmechanik
  Inhalt: Studenten soll frühzeitig die Möglichkeit geboten werden, an aktuellen Forschungsthemen aus dem Bereich der experimentellen Quantenoptik mitzuarbeiten: Ultrakalte atomare Gase, Bose-Einstein-Kondensation, kollektive photonische Quanteneffekte. Die genaue Themenstellung des Praktikums erfolgt nach Absprache.
  Literatur: wird gestellt
  Bemerkungen: Homepage der Arbeitsgruppe:

6838 Praktische Übungen zur Bildgebung und Bildverarbeitung in der Medizin
pr, Kliniken Venusberg
(Teilnahme am Seminar "Medizinische Physik" erforderlich)
  Instructor(s): K. Lehnertz, C. Berg, P. David, F. Träber, P. Trautner
  Contents: Continuation of topics addressed in the seminar; examples of medical imaging in prenatal diagnosis, radiology, and neurosciences.
  Comments: Dates to be arranged during the semester.
astro821  Astrophysics of galaxies
Th 15:00-18, Raum 0.012, AIfA
Exercises: 1 hr. by appointment
  Instructor(s): P. Kroupa
  Prerequisites: see web page
  Contents: see web page
  Literature: see web page
  Comments: see web page
astro822  Physics of the interstellar medium
Mo 11:15-12:30, Tu 15-16:15, Raum 0.012, AIfA
Exercises: 1 hr. by appointment
  Instructor(s): F. Bertoldi
  Prerequisites: None
  Contents: Constitutens of the interstellar medium, physical processes, radiative transfer, recombination, HI 21cm line,
absorption lines, Stroemgren spheres, HII regions, interstellar dust, molecular gas and clouds, shocks,
photodissociation regions, energy balance, the multi-phase ISM, gravitational stability and star formation.
  Literature: B. Draine "Physics of the Interstellar and Intergalactic Medium" (Princeton Univ. Press 2010 ~49EUR - can be
found in library!)
J. Lequeux "The Interstellar Medium" (Springer 2005 ~90EUR)

Additional or supplementary:
A.G.G.M. Tielens "The Physics and Chemistry of the Interstellar Medium" (Cambridge 2006 ~34/76EUR)
D.E. Osterbrock "Astrophysics of Gaseous Nebulae and Active Galactic Nuclei" (2nd Ed; Palgrave MacMillian
2005 ~71EUR)
Rybicki & Lightman "Radiative Processes in Astrophysics"
"Tools of Radio Astronomy"
  Comments: The student shall acquire a good understanding of the physics and of the phases of the ISM. The importance
for star formation and the effects on the structure and evolution of galaxies is discussed. Observing
techniques in the various wavelength domains (radio astronomy, infrared, optical, UV, X-Rays) will be
astro8402 X-ray astronomy
Fr 13-15, Raum 0.012, AIfA
Exercises: 1 hr. by appointment
  Instructor(s): T. Reiprich
  Prerequisites: Introductory astronomy course.
  Contents: X-rays are emitted from regions where the Universe is hot and wild. The lecture will provide an overview of
modern X-ray observations of all major X-ray sources. This includes, e.g., comets and planets in our solar
system; Galactic systems like extrasolar planets, cool and hot stars, remnants of exploded stars, isolated
white dwarfs and neutron stars, cataclysmic variables, close binaries with neutron stars and black holes, hot
interstellar medium, and the Galactic center region; extragalactic X-ray sources like spiral and elliptical
galaxies, galaxy clusters, intergalactic medium, and active galactic nuclei, i.e., supermassive black holes
lurking in the centres of galaxies. The X-ray emission and absorption processes as well as current and future
space-based instruments used to carry out such observations will be described. In the accompanying lab
sessions, the participants will learn how to download, reduce, and analyze professional X-ray data from a
satellite observatory.
  Literature: A script of the lecture notes will be provided.
astro8404  Radiointerferometry: Methods and Science
We 10-13, Raum 0.006, AIfA
  Instructor(s): F. Bertoldi, M. Kramer, B. Magnelli, R. Mauersberger, S. Mühle
  Prerequisites: Basic knowledge of radioastronomy
  Contents: The Master-level course "Radio Interferometry: Methods and Science" offers hands-on training in the data
reduction and analysis of interferometric data for Master students, PhD students and senior astronomers. The
course starts with a brief review of the basic concepts of radio interferometry including calibration and
imaging. Then the various steps necessary to create fully calibrated data cubes from interferometric raw data
are discussed. Already during the lectures, the participants can practice the individual steps on their copy of
an ALMA data set, using two powerful compute servers and the versatile Common Astronomy Software
Applications (CASA) package. In the final sessions, the participants learn how to analyze their interferometric
data and what additional considerations are required for special research topics like polarization studies.
  Comments: If you are a Master student at the university of Bonn or Cologne, you can take this course for credit, obtaining
4 CP. Following the hands-on approach of the course, the coursework relevant for the final grade consists of
assignments related to the data reduction and analysis of a small interferometric dataset, followed by a
presentation (Referat, 15 min length) and a short paper summarizing the data reduction and the analysis (5-
12 A4 pages). It is expected that "for credit" students attend all the lectures/tutorials and register for the
exam on Basis before the deadline.

The lectures start on 11 April 2018. We will create the computer accounts needed for the hands-on parts of
the course. We will also use it to circulate updates, material and other information related to the course. If you
can't attend on 11 April, but are interested in participating in the course, please contact us before Friday, 13
April 2018.
astro847 Optical Observations
Fr 11-13, Raum 0.012, AIfA
Exercises: 1 hr. by appointment
  Instructor(s): H. Hildebrandt, T. Schrabback
  Prerequisites: Astronomy introduction classes
  Contents: Optical CCD and near infrared imaging, conducting and planning observing runs,
detectors, data reduction, catalogue handling, astrometry, coordinate systems,
photometry, spectroscopy, photometric redshifts, basic weak lensing data
analysis, current surveys, ground-based data versus Hubble Space Telescope
observations, how to write observing proposals.

Practical experience is gained by obtaining and analysing multi-filter CCD
imaging observations of galaxy clusters using the 50cm telescope on the AIfA
rooftop, as well as the analysis of professional data from the archive.
  Literature: Provided upon registration.
  Comments: The class has a strong focus on hands-on observations and data analysis. It
should be particularly useful for students who consider conducting a master's
thesis project which involves the analysis of optical imaging data from
professional telescopes (e.g. wide-field imaging data or Hubble Space Telescope
astro849 Multiwavelength observations of galaxy clusters
Mo 15.30-17, Raum 0.008, AIfA
Exercises: 1 hr. by appointment
  Instructor(s): T. Reiprich
  Prerequisites: Introductory astronomy course.
  Contents: Aims of the course:
To introduce the students into the largest clearly defined structures in the Universe, clusters of galaxies. In
modern astronomy, it has been realized that a full understanding of objects cannot be achieved by looking at
just one waveband. Different phenomena become apparent only in certain wavebands, e.g., the most massive
visible component of galaxy clusters -- the intracluster gas -- cannot be detected with optical telescopes.
Moreover, some phenomena, e.g., radio outbursts from supermassive black holes, influence others like the X-
ray emission from the intracluster gas. In this course, the students will acquire a synoptic, multiwavelength
view of galaxy groups and galaxy clusters.
Contents of the course:
The lecture covers galaxy cluster observations from all wavebands, radio through gamma-ray, and provides a
comprehensive overview of the physical mechanisms at work. Specifically, the following topics will be
covered: galaxies and their evolution, physics and chemistry of the hot intracluster gas, relativistic gas, active
supermassive black holes, cluster weighing methods, Sunyaev-Zeldovich effect, gravitational lensing, radio
halos and relics, tailed radio galaxies, and the most energetic events in the Universe since the big bang:
cluster mergers.
  Literature: Lecture script and references therein.
astro851  Stellar and solar coronae
Th 13-15:15, Raum 0.01, MPIfR
Exercises: 1 hr. by appointment
  Instructor(s): M. Massi
T Tauri (young stellar systems not yet in Main Sequence) and RS CVn systems (evolved stellar systems that already left the Main Sequence), although very diverse systems, have similar flare activities observed at radio and X-ray wavelengths.

The flares in both systems are several orders of magnitude stronger than those of the Sun. The origin of this activity, defined "coronal activity", depends on the convective zone, the rotation, the formation and dissipation of magnetic fields. In general terms: This is a mechanism of the same type as on the Sun, but enforced by the binary nature of these systems.

In these lectures we will explore a link between the amplification of initial magnetic fields by dynamo action in several rotating systems ( Sun, binary systems and accretion discs around black holes) and the release of magnetic energy into a corona where particles are accelerated.

Together with the basic theory there will be as well illustrated the latest progress in the research on stellar coronal emission derived from recent space missions and high-resolution radio observations.
  Literature: The Solar Corona.
Golub and Pasachoff
6952  Seminar on theoretical dynamics
Fr 14-16, Raum 3.010, AIfA
  Instructor(s): P. Kroupa
  Prerequisites: see web page
  Contents: see web page
  Literature: see web page
  Comments: see web page
6953  Seminar on stellar systems: star clusters and dwarf galxies
Tu 16:15-17:45, Raum 3.010, AIfA
  Instructor(s): P. Kroupa, J. Pflamm-Altenburg
  Prerequisites: see web page
  Contents: see web page
  Literature: see web page
  Comments: see web page
6954 Seminar on galaxy clusters
Th 15-17, Raum 0.006, AIfA
  Instructor(s): T. Reiprich
  Prerequisites: Introductory astronomy course.
  Contents: The students will report about up to date research work on galaxy clusters based on scientific papers.
  Literature: Will be provided.