Universität Wien
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280540 VU Satellite galaxies (2023W)

4.00 ECTS (2.00 SWS), SPL 28 - Erdwissenschaften, Meteorologie - Geophysik und
Continuous assessment of course work
Moodle

Registration/Deregistration

Note: The time of your registration within the registration period has no effect on the allocation of places (no first come, first served).

Details

max. 15 participants
Language: English

Lecturers

Classes (iCal) - next class is marked with N

  • Wednesday 04.10. 16:45 - 18:15 Seminarraum 1 Astronomie Sternwarte, Türkenschanzstraße 17
  • Wednesday 11.10. 16:45 - 18:15 Seminarraum 1 Astronomie Sternwarte, Türkenschanzstraße 17
  • Wednesday 18.10. 16:45 - 18:15 Seminarraum 1 Astronomie Sternwarte, Türkenschanzstraße 17
  • Wednesday 25.10. 16:45 - 18:15 Seminarraum 1 Astronomie Sternwarte, Türkenschanzstraße 17
  • Wednesday 08.11. 16:45 - 18:15 Seminarraum 1 Astronomie Sternwarte, Türkenschanzstraße 17
  • Wednesday 15.11. 16:45 - 18:15 Seminarraum 1 Astronomie Sternwarte, Türkenschanzstraße 17
  • Wednesday 22.11. 16:45 - 18:15 Seminarraum 1 Astronomie Sternwarte, Türkenschanzstraße 17
  • Wednesday 29.11. 16:45 - 18:15 Seminarraum 1 Astronomie Sternwarte, Türkenschanzstraße 17
  • Wednesday 06.12. 16:45 - 18:15 Seminarraum 1 Astronomie Sternwarte, Türkenschanzstraße 17
  • Wednesday 13.12. 16:45 - 18:15 Seminarraum 1 Astronomie Sternwarte, Türkenschanzstraße 17
  • Wednesday 10.01. 16:45 - 18:15 Seminarraum 1 Astronomie Sternwarte, Türkenschanzstraße 17
  • Wednesday 17.01. 16:45 - 18:15 Seminarraum 1 Astronomie Sternwarte, Türkenschanzstraße 17
  • Wednesday 24.01. 16:45 - 18:15 Seminarraum 1 Astronomie Sternwarte, Türkenschanzstraße 17
  • Wednesday 31.01. 16:45 - 18:15 Seminarraum 1 Astronomie Sternwarte, Türkenschanzstraße 17

Information

Aims, contents and method of the course

For our understanding of astrophysical processes acting on galaxies, low-mass and faint dwarf galaxies which exist as satellites around massive Hubble-type objects serve as the fundamental link to the formation of cosmological objects. Advanced observational methods over the last decades allow the detection of further Milky Way companions and increase the number of dwarf galaxies in the Milky Way vicinity down to the lowest mass range and brightness, called ultra-faint dwarf galaxies (UFDs).
Due to their proximity the Milky Way satellites can be studied in detail. One of their extreme properties from stellar kinematics is the widely derived conclusion but still debated challenge that they are strongly dominated by Dark Matter. Since dwarf galaxies are considered as building blocks of massive galaxies, by this playing a decissive role in our cosmological scenario, one expects that in addition to the still observable satellites a large number of this population is already accreted by the central galaxy. In fact, faint stellar streams in and around parent galaxies like the Milky Way are detected.
Within the local volume of the universe extremely sensitive observations allow to detect satellite systems around other massive galaxies. In denser environments like galaxy clusters satellite galaxies are not always linked to major galaxies but are affected by the cluster potential itself. Even a larger variety of properties are found, to some extent extreme, as e.g. ultra-compact dwarfs (UCGs) and ultra-diffuse dwarfs (UDG).

We also know that satellite galaxies are formed continuously within the tidal arms of interacting galaxies, what also means that these Tidal Dwarf Galaxies (TDGs) must be DarK Matter free, while their properties agree well with traditional dwarf galaxies.

This course is dedicated to the formation and evolution of satellite galaxies and will study star-formation histories, element abundances, and properties of their different types under the aspect that they commonly evolve in the tidal field and circumgalactic gas halo of massive galaxies and the cluster environment. We will obtain a deep insight into the population of satellite galaxies and their large variety and discuss their fundamental role in astrophysics.

Assessment and permitted materials

Selected topics from recent publications will be presented by the students and discussed with the participants.
A lively participation in the lectures and discussions is expected.

Minimum requirements and assessment criteria

Attendance at 75% lecture slots at minimum and 1 personal presentation of each participant is the minimal requirement of a positive evaluation. Individual grades will depend on active participation, scientific contributions, and gained knowledge.

Examination topics

Recaps of previous sessions will be asked and discussed.

Reading list

will be offered during the semester

Association in the course directory

VAF;

Last modified: We 27.09.2023 21:48