Massive stars

  title={Massive stars},
  author={Dany Vanbeveren and C. De Loore and Walter van Rensbergen},
  journal={The Astronomy and Astrophysics Review},
Abstract. We describe the present state of massive star research seen from the viewpoint of stellar evolution, with special emphasis on close binaries. Statistics of massive close binaries are reasonably complete for the Solar neighbourhood. We defend the thesis that within our knowledge, many scientific results where the effects of binaries are not included, have an academic value, but may be far from reality. In chapter I, we summarize general observations of massive stars where we focus on… 
Investigating the lack of main-sequence companions to massive Be stars
Context. About 20% of all B-type stars are classical Be stars – stars whose spectra imply the presence of a circumstellar decretion disk. The disk phenomenon is strongly correlated with rapid
The Impact of Interacting Binary Stars on Core-collapse Supernovae and Emission Nebulae
The evolution of binary-star systems vary from that of single stars as they can interact with their companions. This leads to mass loss, mass gain, or stellar mergers. We now know that most massive
Population Synthesis of Massive Close Binary Evolution
Binary population synthesis is the method by which predictions of varied observables of stellar populations can be made from theoretical models of binary stellar evolution. Binary stars have many
The IACOB project
Context. The apparent lack of massive O-type stars near the zero-age main sequence, or ZAMS (at ages <2 Myr), is a topic that has been widely discussed in the past 40 yr. Different explanations for
The Wolf–Rayet binaries of the nitrogen sequence in the Large Magellanic Cloud
Context. Massive Wolf–Rayet (WR) stars dominate the radiative and mechanical energy budget of galaxies and probe a critical phase in the evolution of massive stars prior to core collapse. It is not
Clues about the scarcity of stripped-envelope stars from the evolutionary state of the sdO+Be binary system φ Persei
Stripped-envelope stars form in binary systems after losing mass through Roche-lobe overflow. They bear astrophysical significance as sources of UV and ionizing radiation in older stellar populations
Impact of binary interaction on the evolution of blue supergiants
A large fraction of massive stars evolve in interacting binary systems, which dramatically modifies the outcome of stellar evolution. We investigated the properties of blue supergiants in binary
The Uncertain Future of Massive Binaries Obscures the Origin of LIGO/Virgo Sources
The LIGO/Virgo gravitational-wave observatories have detected at least 50 double black hole (BH) coalescences. This sample is large enough to have allowed several recent studies to draw conclusions
Supernovae Ib and Ic from the explosion of helium stars
Much difficulty has so far prevented the emergence of a consistent scenario for the origin of Type Ib and Ic supernovae (SNe). Either the SN rates or the ejecta masses and composition were in tension
Massive Star Modeling and Nucleosynthesis
  • S. Ekström
  • Physics
    Frontiers in Astronomy and Space Sciences
  • 2021
After a brief introduction to stellar modeling, the main lines of massive star evolution are reviewed, with a focus on the nuclear reactions from which the star gets the needed energy to