Frontiers of Stellar Physics: the Theory-Observation Interface

Workshop Overview

The recent data releases by the European Space Agency's Gaia survey reinvigorated the interest in stellar physics. Gaia's state-of-the-art astrometry and photometry combined with contemporary spectroscopic surveys and high-cadence photometric space missions allow stringent tests of the stellar evolution, pulsation and population synthesis models.

The aim of this workshop is to address the open questions related to the uncertainties in the theoretical models through a comparison with the observational data. The topics of the workshop include:

  • Population synthesis: simulations of star counts, dependence on the uncertainties of the stellar models
  • Stellar rotation: effects on the stellar evolution
  • Stellar pulsations: comparison between the observational values and the theoretical light curves, luminosities, ages and colour
  • High-cadence space missions: combining the Kepler, TESS and PLATO missions with Gaia and spectroscopic surveys to lift the degeneracies and provide key modelling parameters
  • Spectroscopy: obtaining atmospheric parameters as a key ingredient of the models; Gaia benchmark stars
  • Stellar ages : uncertainties in the models and their impact on the determination of ages
  • Asteroseismology: importance of obtaining dynamical masses
  • Distance scale: systematic errors in the determination of the distance scale as a result of the theoretical assumptions, ultimately affecting the determination of the Hubble constant
The workshop is limited to a maximum of ~40 participants.

Location and Dates

The workshop will be held near the Palace of Matica Hrvatska in Zagreb, Croatia. The full address of the venue is: Trg J.J.Strossmayera 4, 10000 Zagreb. [See google maps]

The workshop dates are 21-23 January 2020.

The meeting will start at 09:00 on Tuesday 21 Jan 2020 and close around 16:00 on Thursday 23 Jan 2020.


The final programme (v20200117) is available in this pdf

Social Programme

  • Tues 21 Jan 2020 @ 17.30: Walking tour of Zagreb (Meet at Tuškanac cinema, Tuškanac 1. See
  • Weds 22 Jan 2020 @ 19.00: Workshop Dinner: Vinodol restaurant. Address: Teslina 10. See

Invited Speakers

We have the pleasure to announce our confirmed invited speakers, that will provide broad reviews about the topics of our workshop:

  • Vardan Adibekyan (Instituto de Astrofísica e Ciências do Espaço, Porto)
  • Gisella Clementini (Osservatorio di Astrofisica e Scienza dello Spazio di Bologna)
  • Léo Girardi (Osservatorio Astronomico di Padova)
  • Fran Jiménez-Esteban (Astrobiology Center, Madrid)
  • Marcella Marconi (Osservatorio Astronomico di Capodimonte, Napoli)
  • Andrea Miglio (University of Birmingham)

List of Participants

List of participants as of 2020019


Registration will close on Sun 8 December 2019.
Note that there is no registration fee to attend this workshop.

Support to Attendees

There is some funding available to support participant travel and accommodation costs. Our MW-Gaia Action is following the COST organisation's inclusiveness policies - see - and will evaluate requests for support against these criteria and the applicants statement as to why their attendance at the workshop will be beneficial to them and/or the other workshop participants.

When registering participants are asked to indicate if they wish to be considered for financial support. If so they need to attach a short 200 word giving an indication of their research interests and why attendance at the workshop will be beneficial to them (and/or the other attendees of the workshop).

Local Zagreb Information

Zagreb is easily reachable by air. The airport (ZAG) is located south of the city centre and can be reached by shuttle bus, local transit or taxi. Additional info is available on the airport website.

Travel by train is also a good option - see for instance for links as to how to get to Zagreb.

Meeting attendees are asked to arrange their own accommodation.

Page updated: LP+NAW/ 20200122


20200117: new programme and location details added


Registration and Abstract Submission Deadline: Sun 8 Dec 2019.

Key Dates

  • Deadline for funding support applications: Sun 8 Dec 2019
  • Registration Deadline: Sun 8 Dec 2019
  • Feedback to those requesting financial assistance: Mon 16 Dec 2019.
  • Publication of Programme: Tues 7 Jan 2020
  • Workshop: 21-23 Jan 2020. The meeting will start at 09.00 21 Jan and end ~16.00 23 Jan 2020. (All times local: CET).


  • Gisella Clementini (Osservatorio di Astrofisica e Scienza dello Spazio di Bologna)
  • Joris De Ridder (KU Leuven)
  • Léo Girardi (Osservatorio Astronomico di Padova)
  • Fran Jiménez-Esteban (Astrobiology Center, Madrid)
  • Marcella Marconi (Osservatorio Astronomico di Capodimonte, Napoli)
  • Andrea Miglio (University of Birmingham)
  • Rosanna Sordo (Osservatorio Astronomico di Padova)
  • Ivanka Stateva (Institute of Astronomy and National Astronomical Observatory, Sofia)
  • Lovro Palaversa (Ruđer Bošković Institute, Zagreb (Chair))


  • Ana Erceg (Ruđer Bošković Institute, Zagreb)
  • Marta Fatović (Ruđer Bošković Institute, Zagreb)
  • Tomislav Jurkić (University of Rijeka)
  • Iva Šnidarić (Ruđer Bošković Institute, Zagreb)
  • Luka Turić (Ruđer Bošković Institute, Zagreb)
  • Lovro Palaversa (Ruđer Bošković Institute, Zagreb)

Code of Conduct

  • All meeting attendees will be expected to abide by the meeting code of conduct which will be published here.

COST is supported by the EU Framework Programme Horizon 2020

© 2019 MW-Gaia COST Action CA18104 Contact: