Advanced Stellar Evolution (5), Autumn 2016


Advanced Stellar Evolution (10), Autumn 2016, Second Quarter

Jørgen Christensen-Dalsgaard

See the end.

This page concerns both the 5 ECTS course Advanced Stellar Evolution (5) and the 10 ECTS course Advanced Stellar Evolution (10). The page gives access to Ugesedler from this course, as pdf files. For simplicity, the numbering refers to the 10 ECTS course. The ugesedler relevant for the Q2 course is therefore, obviously, Ugeseddel 8 - 14 (there is no Ugeseddel 7).

Relevant material will be added as links throughout the course.



The lectures will be given by Günter Houdek and me. The exercise classes will be conducted by Remo Collet.

Start of Q2

Since I am away on 3 November, we delay the start of the lectures until the following Monday, 7 November. Here we shall discuss the organization and contents of the course, and start the lectures.


This will be supplemented by material handed out, as well as by the presentations at the lectures, which will be made available here.

Ugesedler, Q1

Ugesedler, Q2

The MESA package

The MESA package is a user-friendly code for stellar modelling which we shall use for projects to compute stellar evolution, including possibly some of the final projects for the evaluation of the course. For an introduction to MESA, see the MESA web page.

Jakob Mosumgaard has made notes specifically on the use of MESA on our system, either by using a central installation on our servers or by installing it on your (Linux or Mac) laptop:

Evaluation of the course

The courses will be evaluated based on reports on topics related to the course. A list of possible topics, with relevant references, are available here as a PDF file.

Each topic can be used only once, for this course. Please send me an e-mail as soon as possible with the number of your choice of project. Below is a list of topics that have already been selected.

The deadline for submission of the report is 23 January 2017.

Note that the following links are useful to search for, and download, the papers that you need for the project:

Topics already reserved:

1, 2, 4, 5, 6, 10

Some comments on convection

The weaknesses of the mixing-length treatment of convection, discussed in the lectures, are obvious. Although more sophisticated formulations have been proposed, the best way to gain insight into stellar convection is undoubtedly to carry out numerical simulations that are as realistic as possible. Perhaps the best simulations of this nature were started by Åke Nordlund, Copenhagen and Bob Stein, Michigan, and have more recently also been continued by Regner Trampedach and Remo Collet.


Complexity of stellar modelling

This diagram illustrates the complex interactions between the different aspects of reasonably realistic stellar modelling (see Mathis & Zahn (2005; A&A 440, 653); Zahn (2008; Proc. IAU Symp. 252, p. 47)). We are still far from a complete understanding of stellar structure and evolution.

Last updated by Jørgen Christensen-Dalsgaard on Thursday, 12 January, 2017 at 16:43