Welcome to the homepage of Andreas C. S. Jørgensen

In my research, I investigate how an improved understading of magneto-hydrodynamic (MHD) processes in stars can help to shed light on stellar structures and their evolution. For this purpose, I develop upon the depiction of turbulent convection and mixing processes in one-dimensional (1D) stellar models, using multi-dimensional simulations of stellar envelopes and of overshooting. Building upon these improvements of stellar models, I investigate low-mass stars, such as the present Sun and stars in the Kepler field, using helio- and asteroseismology. From these analyses, I seek to derive more accurate estimates of stellar properties.

The improved depiction of the surface layers in our evolution code (Garstec) reliably recovers the results from realistic 3D simulations (cf. Jørgensen et al. 2018).

Using multi-dimensional simulations of convection, we can address the tachocline anomaly and the lithium depletion problem (cf. Jørgensen & Weiss 2018).

Coupling of the Stagger grid and the Garching stellar evolution code (Garstec): We include realistic stellar envelopes at every time-step of the computed evolution (cf. Jørgensen et al. 2018).


I am a postdoc at the University of Birmingham in the group of Dr Andrea Miglio. I hold a PhD from the Max Planck Institute for Astrophysics, which I earned in 2019 in the group of Professor Dr Achim Weiss, where I develop upon 1D stellar evolution codes, using 3D simulations of stellar envelopes. My thesis is available online. I am furthermore affiliated with the University of Aarhus, where I attained my master's degree in in 2015. Professor Dr Jørgen Christensen-Dalsgaard was the advisor of my MSc project, in which I dealt with stars as laboratories for fundamental particle physics. I am a member of the Kepler Asteroseismic Science Consortium (KASC) and the PLATO work group on 3D stellar atmospheres.

Workshops and Conferences

  • 2019 Barcelona: PLATO STESCI Workshop III,
    INVITED TALK: Using patched models
  • 2019 Cambridge: Stars group meeting,
    TALK: Combining stellar models with multidimensional hydrodynamic simulations
  • 2019 Boston (MIT): TASC5 KASC12 Workshop,
    TALK: Improving 1D stellar evolution codes using 3D simulations of stellar envelopes
  • 2019 Exeter: Stellar Hydro Days V,
    TALK: Using 3D simulations of stellar envelopes to improve 1D stellar models
  • 2019 Liege: PLATO Liege Workshop,
    TALK: Using realistic model atmospheres to better understand stellar structures and their evolution
  • 2019 Birmingham: Seminar at the University of Birmingham,
    TALK: Using 3D envelopes to better understand stellar structures and evolution
  • 2018 Aarhus: TASC4 KASC11 Workshop
  • 2018 Munich: MPA institute seminar,
    TALK: Coupling 1D models stellar with 3D envelopes
  • 2018 Munich: 6th International Max Planck Research School Symposium (IMPRS),
    TALK: Coupling 3D and 1D simulations to improve stellar models
  • 2018 Aarhus: Stagger-Workshop,
    TALK: Patching 1D models of stellar interiors with 3D-envelopes
  • 2018 Munich: 5th International Max Planck Research School Symposium (IMPRS),
    TALK: Improving current 1D stellar structure models
  • 2017 Munich: 8th Aarhus Workshop,
    TALK: Stellar patchworks --- Patching models with 3D-atmospheres
  • 2017 Birmingham: TASC3 KASC10 Workshop,
    POSTER: Seismic properties of patched stellar models
  • 2017 Aarhus: SAC seminar,
    TALK: At the edge of stars --- Patching stellar structure models
  • 2016 Aarhus: SCORe16 Workshop
  • 2012 Balatonalmadi: KASC5 Workshop,
  • POSTER: End-to-end analysis of KIC~6116048