Splinter Meeting MassiveStars

The lives of massive stars and their influence on star formation

Time: Monday September 09, 14:00-15:45 and 16:15-18:00 and Tuesday September 10, 14:00-16:30 CEST (UTC+2)

Room: S23

Convenor(s): Roel Lefever [1], Matheus Bernini Peron [1], Abel Schootemeijer [2]
[1] ARI/ZAH Universität Heidelberg, [2] Argelander-Institut für Astronomie Universität Bonn

Massive stars, having about eight solar masses or more at birth, do pull their weight on the interstellar stage, despite their comparatively low absolute numbers. Typically being responsible for the majority of cluster and galactic energy outputs, massive stars are paramount to population synthesis studies. While the details of their formation remain highly uncertain, these stars emit high quantities of radiation into their surroundings right from their birth throughout the main sequence. In later stages, massive stars tend to be subject to large mass-loss rates as Blue or Red Supergiants, Luminous Blue Variables, or Wolf-Rayet stars, injecting a wide variety of feedback onto their neighbourhoods. Typically ending their lives as supernovae, giving an extra large kick on the course of local star formation, massive stars are the progenitors of neutron stars and black holes. With the current advent of gravitational wave observations, understanding the many different stages in the lives of massive stars only grows more important. Our limited understanding of their evolution and impact also partly emerges from the uncertain interiors of these stars. Only detailed modelling can mitigate this and constrain much-needed stellar parameters. As most of the stars in this mass range are found in binary or multiple systems, studying them implores us to consider binarity/multiplicity as well, where these systems can serve as highly useful testbeds in their own right. In all these areas, theoretical insights need to be benchmarked with observations of massive stars. With the unique data from Gaia as well as the currently ongoing spectroscopic efforts such as the XShootU and BLOeM campaigns, we are entering a new era of observational data which can help us to decode the light of stars in order to understand how massive stars form, live and die. This splinter addresses the manifold aspects of massive star research: massive star evolution in all its phases; stellar structure considerations and asteroseismology; impacts on population synthesis; feedback mechanisms in general; binary/multiple evolution; as well as observational efforts and constraints. Connecting the wide range of often isolated research efforts to related fields will lead to a wider, more overarching understanding and can only improve the work on understanding the lives of massive stars.


Monday September 09, 14:00-15:45 The lives of massive stars and their influence on star formation (S23)

Monday September 09, 16:15-18:00 The lives of massive stars and their influence on star formation (S23)

Tuesday September 10, 14:00-16:30 The lives of massive stars and their influence on star formation (S23)

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