Scientific Rationale

A complex relationship exists between rotation, binarity, pulsation, magnetism and chemical peculiarity in upper main-sequence stars. In the region of the HR-diagram where the classical instability strip crosses the main-sequence, one finds the delta Scuti and gamma Doradus stars, alongside the strongly magnetic roAp stars. Pulsational variability is also observed in evolved stars such as the RR Lyrae and Cepheid stars, as well as the subdwarf and white dwarf stars. Beyond the classical instability strip lie also the slowly pulsating B stars and the beta Cephei variables. Many of the stars in the upper main sequence show chemical peculiarities in their atmospheres which are thought to result from chemical stratification aided by a combination of slow rotation, binarity, and strong magnetic fields; all theories which can be tested with time-resolved photometric and spectroscopic observations. In the era of high-quality and statistically significant samples in Astronomy, we are beginning to understand not only the physical processes that occur in these stars, but also how they interact.

This conference will provide an opportunity for the latest results to be discussed by leading scientists at the forefront of their respective fields. The SOC welcomes applications for contributed talks and posters, and the research talk programme will cover a wide range of topics related to upper part of the HR-diagram including rotation, pulsation and asteroseismology, binarity, activity and magnetism, chemical peculiarity and a balanced programme between observational and theoretical work.

This conference is being held to honour the scientific contributions of Don Kurtz. If you wish to contribute photographs of Don to the conference, then these can be uploaded here.

Session Topics

1: Ground and Space Projects
Kepler and K2

2: The Chemically Peculiar stars
Pulsations in CP stars
Am/Fm stars and Ap/Bp stars
The roAp stars

3: Activity, Rotation and Binarity
Observations and models of stellar rotation
Interacting binary systems
Stellar magnetic fields

4: Insights from Asteroseismology
Evolved pulsating stars
Intermediate and high-mass pulsators
Pre-MS stars

Invited Speakers

1: Ground and Space Projects
Tom Barclay
Laurent Eyer
Andrzej Pigulski

2: The Chemically Peculiar stars
Douglas Gough
John Landstreet
Jaymie Matthews

3: Activity, Rotation and Binarity
Rhita-Maria Ouazzani
Barry Smalley
Tamara Rogers

4: Insights from Asteroseismology
J.J. Hermes
Péter Pápics
Konstanze Zwintz


Victoria Antoci (Aarhus University, Denmark; co-chair)
Jørgen Christensen-Dalsgaard (Aarhus University, Denmark)
Margarida Cunha (Institute of Astrophysics and Space Sciences, Portugal)
Gerald Handler (Copernicus Astronomical Center, Poland)
Daniel Holdsworth (University of Central Lancashire, UK; co-chair)
Peter Martinez (University of Cape Town, South Africa)
Gautier Mathys (JAO/ESO, Chile)
Simon Murphy (University of Sydney, Australia)
Hiromoto Shibahashi (University of Tokyo, Japan)
Sylvie Vauclair (Institut de Recherche en Astrophysique et Planétologie, France)


Dominic Bowman (co-chair)
Daniel Holdsworth (co-chair)
Liz Roberts
Emma Woodward-Kelly