Gravitational Lensing

Module PH2242

This module handbook serves to describe contents, learning outcome, methods and examination type as well as linking to current dates for courses and module examination in the respective sections.

Basic Information

PH2242 is a semester module in English language at Master’s level which is offered in winter semester.

This Module is included in the following catalogues within the study programs in physics.

  • General catalogue of special courses
  • Specific catalogue of special courses for nuclear, particle, and astrophysics

If not stated otherwise for export to a non-physics program the student workload is given in the following table.

Total workloadContact hoursCredits (ECTS)
150 h 75 h 5 CP

Responsible coordinator of the module PH2242 is Sherry Suyu.

Content, Learning Outcome and Preconditions


Imagine a galaxy that lies behind another galaxy.  Will you see the galaxy in the back?  If you think not, think again.  The gravitational field of the galaxy in the front will bend the light from the background source, so that the background source appears to be distorted, magnified and can even have multiple images.  This phenomenon is gravitational lensing. 

Gravitational lensing is now a powerful astrophysical tool to study planetary systems, black holes, galaxies, clusters of galaxies and cosmology.  This course presents the underlying theory of gravitational lensing and the various astrophysical applications.

Learning Outcome

After this course, students will know how gravitational lensing works and how to use it as an astrophysical tool to study current puzzles in astronomy such as how galaxies form and evolve, what is dark matter and what is dark energy. 


No preconditions in addition to the requirements for the Master’s program in Physics.

Courses, Learning and Teaching Methods and Literature

Courses and Schedule

VU 4 Gravitational Lensing Suyu, S. Montag, 12:00–14:00

Learning and Teaching Methods

lecture on black boards, beamer presentation, discussion, tutorial exercises


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Module Exam

Description of exams and course work

In a written exam of 60 minutes the learning outcome is tested using comprehension questions and sample problems.

In accordance with §12 (8) APSO the exam can be done as an oral exam. In this case the time duration is 25 minutes.

Condensed Matter

When atoms interact things can get interesting. Fundamental research on the underlying properties of materials and nanostructures and exploration of the potential they provide for applications.

Nuclei, Particles, Astrophysics

A journey of discovery to understanding our world at the subatomic scale, from the nuclei inside atoms down to the most elementary building blocks of matter. Are you ready for the adventure?


Biological systems, from proteins to living cells and organisms, obey physical principles. Our research groups in biophysics shape one of Germany's largest scientific clusters in this area.