Exercise sheets

Practice groups

  • Group 1 (Roel Lefever)
    20 participants
    Philos.-weg 12 / kHS, Thu 15:45 - 17:15
  • Group 2 ( Matheus Bernini Peron)
    20 participants
    Philos.-weg 12 / R105, Thu 15:45 - 17:15

Stellar Astrophysics

summer term 2022
Lecturer: Jordan
Link to LSF
40 participants


Stefan Jordan

ZAH/ARI, Mönchhofstr. 12-14, 69120 Heidelberg


Registration: Please register for the lecture, tutorial group.



The lecture and the tutorials will probably be held in person in the Kleiner Hörsaal, Philosophenweg 12.

 However, due to the uncertain Covid-19 situation this may change.



Lecture: Thursdays, 14:15-15:45

Tutorial Group 1: Thursday, 15:45-17:15

Tutorial Group 2: Thursday, 15:45-17:15


Please submit the homework solutions online at this webpage. The link is found under 'My Groups' (and the selection of the lecture/group). The upload interface offers the possibility to hand in the homework together with other students from the group. The homework solutions need to be handed in by noon on Wednesday the week after they have been issued. 


Please wear a mask during the lecture, exercises and the seminar!


Lecture content:

Stellar structure and evolution / stellar atmospheres / Sun


Preliminary Schedule:

21.4.22: Introduction 

28.4.22: Stellar structure 1

05.5.22: Stellar structure 2

12.5.22: Stellar structure 3

19.5.22: Energy transport 

26.5.22: Himmelfahrt

02.6.22: Energy production

09.6.22: Main sequence

16.6.22: Fronleichnam

23.6.22: Stellar evolution to the AGB

30.6.22: Late stages of stellar evolution

07.7.2: Stellar pulsations, rotation, magnetic fields

14.7.22: Stellar atmospheres stellar spectra

21.7.22: Stellar spectra

28.7.22: Written exam in the "Neuer Hörsaal", Philosophenweg 12, 11:15-13:15 CEST






The papers for the seminar can be found under 

Please choose until July 5 three topics with first, second, and third priority and send your choice to jordan@ari.uni-heidelberg.de. Please put "Stellar Astrophysics Seminar" into your Email subject.
Note that some papers are dealing with the same topic, e.g. "A gap in the lower main sequence ..." and "A closer look at the transition ...". In this case, you should use both papers.
There are several suggestions for Review papers dealing with a larger field in astronomy. In these cases please limit yourself to what you find most interesting.
As soon as we know how many of you will participate in the seminar we will discuss whether we need two or three days and how long the talks should be. 
The Seminar will take place in from August  3-5, 2022, 9:00-17:00 CEST. All participants need to be present for the full seminar. The details will be discussed in the lecture.
Preliminar sequence of the seminar talks
The talks are not scheduled to a specidic day, because it is not easily predictable how long we will need. 

Wee, Soo May: Formation of the first stars

Groth, Julian Tobias: The birth environment of the solar system

Spieß, Valentin: Toward understanding massive star formation

Schell, Doreen Elisabeth Nicole: Not all stars form in clusters- Gaia DR2 uncovers the origin of OB associations

King, Raphael: Accretion onto Pre-Main-Sequence Stars

Schmoll, Moritz Sebastian: Age determination for 269 Gaia DR2 open clusters (Wednesday)

Popa, Silvia Anastasia: Accuracy and precision of industrial abundances, Wednesday

Wang, Manna: Multiple populations in globular clusters

Staffehl, Milan: The Parallax of ω Centauri Measured from Gaia EDR3 and a Direct, Geometric Calibration of the Tip of the Red Giant Branch and the Hubble Constant 

Heller, Max Marius: Solar Neutrinos: Status and Prospects

Seemann, Benedikt: Asteroseismology of Solar-Type and Red-Giant Stars

Jaime Campos:  The Rotation Rates of Massive Stars: The Role of Binary Interaction through Tides, Mass Transfer, and Mergers (cancelled)

Ritter, Jelena Malwine Constanze Maria: Gaia Data Release 3: Pulsations in main sequence OBAF-type stars

Sprenger, Paul Philip: Giant Star seismology, not Thursday morning

Kapoor, Shrriya: The Properties of the Solar Corona and Its Connection to the Solar Wind

Hoffmann, Noa Marie: A Gap in the lower Main Sequence revealed by Gaia Data Release 2

Mandan, Mimansa: Atmospheres of Brown Dwarfs

Harder, Tjark: On the Cool Side: Modeling the Atmospheres of Brown Dwarfs and Giant Planets

Braunwarth, Jan Philipp: High-precision stellar abundances of the elements: methods and applications

De Sarkar, Shuverthi: The Ages of Stars

Joharle, Simran Manish: Estimating stellar ages and metallicities from parallaxes and broadband photometry: successes and shortcomings

Urbach, Kerstin Leonie: Nucleosynthesis in Stars and the Chemical Enrichment of Galaxies 

Emmanuilidis, Ioannis: Gaia Data Release 3: Chemical cartography of the Milky Way

Marx, Leon Marvin: The Evolution of Rotating Stars

Oppenlaender, Borys Edward: Masses, Radii and Equation of State of Neutron Stars 

Beckmann, Benjamin Hon-Lok: Magnetars

Rajpoot, Bhavesh: Prospects for Multimessenger Observations of Thorne-┼╗ytkow Objects

Brillerty, Laura: Ultraluminous X-Ray Sources

Vaishnavi, Sanchi: Core crystallization and pile-up in the cooling sequence of evolving white dwarfs (Friday afternoon)

Mackensen, Nina: The Most Luminous Supernovae

Bruckmann, Franziska Juliane: The Remnant of Supernova 1987A

Canal I Saguer, Mar: What are the spectroscopic binaries with high mass functions near the Gaia DR3 main sequence?

Stellar Astrophysics
summer term 2022
Link zum LSF
40 participants