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SCORe Workshops
SCORe16 Workshop Free Conference is closed
Conference is closed
score16
Hosted by Markus Roth
Affiliation Thüringer Landessternwarte Tautenburg
Aarhus, Denmark
02.10.2016 - 06.10.2016

Organizing institutions
Stellar Astrophysics Center, Aarhus, DK University Heidelberg, Germany
Main category Natural Sciences (Astrophysics and Astrononmy)
Conference/Workshop objectives

The Universities of Aarhus and Heidelberg are planning a series of convection workshops, SCORe (Stellar Convection and Oscillations and their Relationship, jj={16, 17, ...}), with the motivation to bring together expertise from various 1D and 3D convection models/simulations. The workshops shall address various topics in stellar evolution and pulsation theory, such as "surface effects", granulation or stochastic excitation. As an example, it will be an aim to identify the most serious limitations of 1D models and establish how 3D simulations could help to extend/include simple descriptions of additional physics in 1D (evolutionary/pulsation) calculations. This could include simple prescriptions to capture most of the relevant physics associated with, for example, turbulent pressure, turbulent kinetic energy flux, or velocity anisotropy, or convenient ways for calibrating the free parameters in 1D convection models across the Hertzsprung-Russell diagram.

Participation at these workshops is by invitation only. The workshop will be limited to about 15-20 people to provide ideal conditions for an efficient "working" environment. The schedule will include one or two ~1h talks per day, giving us maximal time for actual work and to engage in discussions. A very rough programme has been outlined below.

This year's first workshop, SCORe16, will take place at Aarhus University, Denmark, and SCORe17 will take place in Heidelberg, Germany. The idea is to have “surface effects” as a heading for SCORe16 and “granulation” as a heading for SCORe17.

Local organizing committee
Scientific organizing committee (SOC)

Jørgen Christensen-Dalsgaard (Aarhus)
Remo Collet (Aarhus)
Günter Houdek (Aarhus, chair)
Friedrich Kupka (Vienna)
Hans-Günter Ludwig (Heidelberg)
Mia Sloth Lundkvist (Heidelberg)
Mark Rast (Boulder)
Regner Trampedach (Boulder)

Sessions
  • Main session
  • Discussions
Programme
Invited speakers

Jørgen Christensen-Dalsgaard (SOC, Aarhus University)
Remo Collet (SOC, Aarhus University)
Friedrich Kupka (SOC, Universität, Wien)
Hans-Günter Ludwig (SOC, Universität Heidelberg)
Mia Sloth Lundkvist (SOC, Universität Heidelberg)
Regner Trampedach (SOC, Space Science Institute, Boulder)
Mark Rast (SOC, Boulder University)
Günter Houdek (SOC-chair, Aarhus University)
Magnus Aarslev (SAC, Aarhus University)
Jakob Rørsted Mosumgaard (SAC, Aarhus University)
Markus Roth (Kiepenheuer-Institut, Freiburg)
Jesper Schou (MPI, Göttingen)
Achim Weiss (MPI, Garching)
Douglas Gough (IoA, Cambridge University)
Warrick Ball (Universität Göttingen)
Lionel Bigot (University of Nice)
Bob Stein (Michigan University)
Vichi Antoci (SAC, Aarhus University)
Victor Silva-Aguirre (SAC, Aarhus University)
Andreas Christ Sølvsten Jørgensen (MPA, Garching)

Important dates All important dates have passed.
Registration and payment information Registration is closed.
Conference venue Aarhus, Denmark
Hotel information Please find below a few possibilities in terms of accommodation. Aarhus University Guesthouse Radisson BLU Scandinavia Hotel CABINN Aarhus The Mayor Hotel Scandic City
Travel information

The Department of Physics and Astronomy is situated in the west end of Campus, Aarhus University. Please choose your favorite guide/map to find Campus, e.g. maps.google.dk. The main entrance can be reached from Ny Munkegade or Langelandsgade.

If you arrive by car
Parking lots are situated north of The Department of Physics and Astronomy (between the buildings of "Physics" and Chemistry"). Please use the entrance from Langelandsgade opposite the former military barracks (now Department of Aesthetic Arts).

If you arrive by train
Opposite the main entrance of the train station you will find bus 16, direction ‘Hasle/Haslegårdsvej’ (The direction of the bus is given above the front window). Get off at the stop ‘Universitetet/Kemisk Institut’. It is also possible to go by bus 2A, direction ’AUH Skejby’ or bus 13, direction ‘Frydenlund’ and get off at the first stop on Paludan Müllersvej (Paludan Müllersvej, Langelandsgade and Kaserneboulevarden are announced as 'Kaserneboulevarden'). From here it is only a short walk by "Langelandsgade" to the Department of Physics and Astronomy.

If you arrive by airplane
The airport bus from Aarhus Airport/Tirstrup stops at the University (Ndr. Ringgade) The airport bus from Billund Airport stops at the Aarhus Central Bus Station in the centre of the city - a few minutes' walk from the train station. From Copenhagen Airport you may travel by train to Århus. The train trip takes just under 4 hours.

There are no uploaded videos yet.
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Markus Roth

Session: Main session

1121 views
Date of upload:
10.10.2016
Co-author:
Abstract:
In this talk I present the effect of advection on the solar eigenfrequencies and how it could contribute to the surface effect.
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Jakob Mosumgaard

Session: Main session

1243 views
Date of upload:
13.10.2016
Co-author:
Abstract:
Brief presentation on the procedure for implementing T-tau relations extracted from 3D simulations into 1D stellar models. More specifically, how the T-tau relations from Trampedach et al. (2014, MNRAS, 442, 805) and variable mixing-length parameter from Trampedach et al. (2014, MNRAS, 445, 4366) have been implemented in the Garching Stellar Evolution Code (GARSTEC, see Weiss & Schlattl, 2008, Astrophys. Space Sci., 316, 99).
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Mark Rast

Session: Main session

1079 views
Date of upload:
20.10.2016
Co-author:
Jean-Francois Cossette
Abstract:
Discussion of the solar convective conundrum, why low wavenumber convective motions in both local area and global models of solar convection have much larger amplitudes than those inferred from observations, and its connection with the long standing puzzle of the origin of the solar supergranulation. Implications for modeling the near surface superadiabatic stratification of stellar convective envelopes.
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Günter Houdek

Session: Main session

1052 views
Date of upload:
25.10.2016
Co-author:
Regner Trampedach, Magnus Aarslev, Jørgen Christensen-Dalsgaard
Abstract:
These are the slides presented at the SCORe16 workshop in October 2016, SAC, Aarhus University.
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Hans-G. Ludwig

Session: Main session

975 views
Date of upload:
13.11.2016
Co-author:
Abstract:
Presentation at the SCORe16 Workshop Aarhus 2016
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Regner Trampedach

Session: Main session

1217 views
Date of upload:
30.11.2016
Co-author:
Abstract:
I present an overview of the components of the asteroseismic surface effect, which can be divided into a modal part and a structural part. I discuss best practices in evaluating the structural part, which is entirely due to differences in mean stratification between the seismically observed star and our model of it. Assuming this part is due to the 3D nature of surface convection, the structural part of the surface effect can be found as the frequency differences between an averaged 3D convection simulation, and a 1D (MLT) model mathched to that simulation.
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Robert Stein

Session: Main session

1166 views
Date of upload:
29.11.2016
Co-author:
Abstract:
p-modes in solar convection simulations will be discussed, including mode spectra, excitation, eighenfunctuions, convection spectra and approximations.
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