Interior Modelling of Massive Stars in Multiple Systems

This thesis by Cole Johnston examines the inner workings of young massive stars by combining binary star observations and asteroseismology. It introduces isochrone cloud fitting to account for the full breadth of physics observed in stars, and combines it with gravity mode asteroseismic analysis to determine the star's age and core mass. The methodology is applied to analyze individual stars, multiple systems, and clusters to demonstrate the dramatic impact of chemical mixing on stellar structure and evolution.

Format: Paperback / softback
Length: 198 pages
Publication date: 23 May 2022
Publisher: Springer Nature Switzerland AG

This thesis by Cole Johnston offers groundbreaking insights into the intricate processes within young massive stars. By seamlessly integrating the fields of binary stars and asteroseismology, this thesis employs state-of-the-art statistical techniques to scrutinize contemporary theories of stellar astrophysics. Building upon the widely employed isochrone fitting methodology, the author introduces the concept of isochrone cloud fitting to encompass the full range of physics observed in stars. By combining this methodology with gravity mode asteroseismic analysis, the author aims to assess the extent of chemical mixing deep within the stellar core, thereby determining the star's age and core mass. Encompassed within a robust statistical framework that accounts for correlations, this methodology is applied to analyze individual stars, multiple systems, and clusters alike, showcasing the profound impact of chemical mixing on stellar structure and evolution.

This thesis by Cole Johnston delves into the inner workings of young massive stars, providing novel insights through the fusion of binary stars and asteroseismology. By employing advanced statistical techniques, this thesis examines contemporary stellar astrophysics theories, bridging the observational domains of binary stars and asteroseismology.

The author introduces the concept of isochrone cloud fitting, an extension of the commonly used isochrone fitting methodology, to account for the diverse range of physics observed in stars. This approach enables the comprehensive analysis of stars, encompassing individual stars, multiple systems, and clusters. By combining this methodology with gravity mode asteroseismic analysis, the author aims to assess the level of chemical mixing within the stellar core, thereby determining the star's age and core mass.

The thesis is framed within a robust statistical framework that accounts for correlations, ensuring accurate and reliable results. This methodology is applied to analyze individual stars, multiple systems, and clusters, demonstrating the dramatic impact of chemical mixing on stellar structure and evolution.

Through this groundbreaking research, Cole Johnston has made significant contributions to our understanding of young massive stars, shedding light on the intricate processes that shape their evolution and destiny.

Weight: 338g
Dimension: 235 x 155 (mm)
ISBN-13: 9783030663124
Edition number: 1st ed. 2021