3rd Aarhus Red Giants Workshop Summary of the previous meetings Víctor Silva Aguirre Teramo, April 28th 2014
Motivation...get stellar modellers together, compare our results, find the discrepancies, discuss the best seismic diagnosis methods for red giant stars, and agree on a minimum set of observables that the data analysis people should provide us with.
Meeting Format
Meeting Format Talks every day: very informal
Meeting Format Talks every day: very informal Plenty of time for discussions
Meeting Format Talks every day: very informal Plenty of time for discussions Computation of science cases
Meeting Format Talks every day: very informal Plenty of time for discussions Computation of science cases Extra presentations encouraged
The usual suspects
The usual suspects Codes:
The usual suspects Codes: 6 evolutionary codes: ASTEC, GARSTEC, FRANEC, LPCODE, MESA, Geneva
The usual suspects Codes: 6 evolutionary codes: ASTEC, GARSTEC, FRANEC, LPCODE, MESA, Geneva 3 pulsation codes: ADIPLS, Gyre, LOSC
The usual suspects Codes: 6 evolutionary codes: ASTEC, GARSTEC, FRANEC, LPCODE, MESA, Geneva 3 pulsation codes: ADIPLS, Gyre, LOSC Attendees:
The usual suspects Codes: 6 evolutionary codes: ASTEC, GARSTEC, FRANEC, LPCODE, MESA, Geneva 3 pulsation codes: ADIPLS, Gyre, LOSC Attendees: A. Weiss, J. Christensen-Dalsgaard, A. Serenelli, V. Silva Aguirre, A. Miglio, S. Cassisi, S. Hekker, D. Stello, A. Mazumdar, A. Jendreieck, C. Jiang, P. Eggenberger, G. Dogan, R. Townsend, M. Miller-Bertolami
The Aarhus Workshop
The Aarhus Workshop
The Aarhus Workshop Santi Cassisi: standard evolution of red giant stars
The Aarhus Workshop Santi Cassisi: standard evolution of red giant stars
The Aarhus Workshop
The Aarhus Workshop Victor Silva Aguirre: asteroseismic modelling of red giants
The Aarhus Workshop Victor Silva Aguirre: asteroseismic modelling of red giants
The Aarhus Workshop
The Aarhus Workshop Jørgen Christensen-Dalsgaard: theoretical pulsation frequencies in red giants
The Aarhus Workshop Jørgen Christensen-Dalsgaard: theoretical pulsation frequencies in red giants
The Aarhus Workshop
The Aarhus Workshop Saskia Hekker: analysis of Kepler red giants data
The Aarhus Workshop Saskia Hekker: analysis of Kepler red giants data
The Aarhus Workshop Saskia Hekker: analysis of Kepler red giants data
The Aarhus Workshop
The Aarhus Workshop Patrick Eggenberger: rotational mixing in red giants
The Aarhus Workshop Patrick Eggenberger: rotational mixing in red giants
The Aarhus Workshop Patrick Eggenberger: rotational mixing in red giants
Science cases
Science cases
Science cases
Science cases
Science cases
Science cases
Science cases 1 Msun
Science cases 1 Msun, 7 Rsun GARSTEC and MESA ages, age around ~1.9%" RGB-bump luminosity, LPCODE surface hydrogen" P differences ~1.7 s
Science cases 1 Msun, 7 Rsun
Science cases 1 Msun, 12 Rsun GARSTEC Teff and Yc, MESA negative Yc " age around ~1.5%" P differences ~2-3 s, within MESA ~1.8 s
Science cases 1.5 Msun
Science cases 1.5 Msun, 7 Rsun Period spacing similar to 1.0 Msun case" age around ~5%" P differences ~2 s
Science cases
Science cases 1.5 Msun, 12 Rsun Teaser: are these distinguishable?
Science cases 2 Msun, 10 Rsun age ~6.5 %" P differences ~5 s
Science cases 2 Msun, 10 Rsun Luminosity of GARSTEC models?
Summary Aarhus Workshop
Summary Aarhus Workshop
The Garching Workshop
Updated science cases
Updated science cases 1 Msun, 7 Rsun age spread ~2% (from 1.9%)" MESA-1 core mass-luminosity, LPCODE surface X" P differences ~1.4 s (from 1.7 s)
Updated science cases 1.5 Msun, 7 Rsun Period spacing slightly below to 1.0 Msun case" age around ~5% (same as before)" P differences ~1.7 s (from 2 s)
Summary Garching Workshop
Summary Garching Workshop Better agreement in interior models
Summary Garching Workshop Better agreement in interior models Brunt-Väisälä frequency agrees well
Summary Garching Workshop Better agreement in interior models Brunt-Väisälä frequency agrees well Convective cores treatment is still a problem
Summary Garching Workshop Better agreement in interior models Brunt-Väisälä frequency agrees well Convective cores treatment is still a problem Mass diagnostics for RGB stars
Summary Garching Workshop Better agreement in interior models Brunt-Väisälä frequency agrees well Convective cores treatment is still a problem Mass diagnostics for RGB stars Clump models need to be further examined, both interior models and frequencies
The Teramo Workshop
The Teramo Workshop
The Teramo Workshop Update:
The Teramo Workshop Update: Modellers please update or provide missing models if necessary Frequency computations for these updated cases Results on frequency comparisons with 3 pulsation codes
The Teramo Workshop Update: Modellers please update or provide missing models if necessary Frequency computations for these updated cases Results on frequency comparisons with 3 pulsation codes New models? Try a 2.5 Msun case (no helium flash) In-depth comparisons of clump models (i.e. mixing) Minimum set of observables Your idea here
The Teramo Workshop Update: Modellers please update or provide missing models if necessary Frequency computations for these updated cases Results on frequency comparisons with 3 pulsation codes New models? Try a 2.5 Msun case (no helium flash) In-depth comparisons of clump models (i.e. mixing) Minimum set of observables Your idea here Report:
The Teramo Workshop Update: Modellers please update or provide missing models if necessary Frequency computations for these updated cases Results on frequency comparisons with 3 pulsation codes New models? Try a 2.5 Msun case (no helium flash) In-depth comparisons of clump models (i.e. mixing) Minimum set of observables Your idea here Report: Comments, corrections, suggestions more than welcome. Should we publish this? Strategy?
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3rd Aarhus Red Giants Workshop Summary of the previous meetings Víctor Silva Aguirre Teramo, April 28th 2014