Molecular tracers of radiative feedback in Orion (OMC-1) Widespread CH+ (J = 1-0), CO (10-9), HCN (6-5), and HCO+ (6-5) emission.
Sign Up to like & getrecommendations! Published in 2019 at "Astronomy and astrophysics"
DOI: 10.1051/0004-6361/201834409
Abstract: Young massive stars regulate the physical conditions, ionization, and fate of their natal molecular cloud and surroundings. It is important to find tracers that help quantifying the stellar feedback processes that take place at different… read more here.
Keywords: orion; massive stars; gas; feedback ... See more keywords
Acoustic wave generation in collapsing massive stars with convective shells
Sign Up to like & getrecommendations! Published in 2020 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/staa533
Abstract: The convection that takes place in the innermost shells of massive stars plays an important role in the formation of core-collapse supernova explosions. Upon encountering the supernova shock, additional turbulence is generated, amplifying the explosion.… read more here.
Keywords: collapsing massive; acoustic wave; massive stars; convective shells ... See more keywords
Wind nebulae and supernova remnants of very massive stars
Sign Up to like & getrecommendations! Published in 2020 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/staa554
Abstract: A very small fraction of (runaway) massive stars have masses exceeding $60$-$70\, \rm M_{\odot}$ and are predicted to evolve as Luminous-Blue-Variable and Wolf-Rayet stars before ending their lives as core-collapse supernovae. Our 2D axisymmetric hydrodynamical… read more here.
Keywords: remnants massive; massive stars; nebulae supernova; wind nebulae ... See more keywords
Numerical experiments to help understand cause and effect in massive star evolution
Sign Up to like & getrecommendations! Published in 2022 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/stac538
Abstract: The evolution of massive stars is affected by a variety of physical processes including convection, rotation, mass loss and binary interaction. Because these processes modify the internal chemical abundance profiles in multiple ways simultaneously, it… read more here.
Keywords: cause; main sequence; numerical experiments; evolution ... See more keywords
Viscous and centrifugal instabilities of massive stars
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DOI: 10.1093/mnras/stac986
Abstract: Massive stars exhibit a variety of instabilities, many of which are poorly understood. We explore instabilities induced by centrifugal forces and angular momentum transport in massive rotating stars. First, we derive and numerically solve linearized… read more here.
Keywords: instabilities massive; massive stars; viscous centrifugal; viscosity ... See more keywords
A small survey for massive stars in the LMC/SMC: binaries and pulsations
Sign Up to like & getrecommendations! Published in 2023 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/stad1541
Abstract: Binarity and pulsations are two notable properties that frequently appear together in massive stars. To place constraints on how binarity affects stellar evolution, the exact parameters of massive stars in binary systems must be known.… read more here.
Keywords: lmc smc; small survey; massive stars; stars lmc ... See more keywords
Magnetism of massive stars in the Early Universe
Sign Up to like & getrecommendations! Published in 2019 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/stz1665
Abstract: It is generally believed that the first stars were hot and massive because of the lack of efficient coolants in the metal-free primordial gas. This paper considers the thermal generation of the magnetic field in… read more here.
Keywords: stars early; massive stars; magnetic field; magnetism massive ... See more keywords
Thermal generation of the magnetic field in the surface layers of massive stars
Sign Up to like & getrecommendations! Published in 2017 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnrasl/slx127
Abstract: A new magnetic field-generation mechanism based on the Nernst effect is considered in hot massive stars. This mechanism can operate in the upper atmospheres of O and B stars where departures from the LTE form… read more here.
Keywords: magnetic field; generation magnetic; massive stars; thermal generation ... See more keywords
The evolution of massive stars: bridging the gap in the Local Group
Sign Up to like & getrecommendations! Published in 2017 at "Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences"
DOI: 10.1098/rsta.2016.0267
Abstract: The nearby galaxies of the Local Group can act as our laboratories in helping to bridge the gap between theory and observations. In this review, we will describe the complications of identifying samples of OB… read more here.
Keywords: local group; bridging gap; evolution massive; massive stars ... See more keywords
Reaction rate for carbon burning in massive stars
Sign Up to like & getrecommendations! Published in 2018 at "Physical Review C"
DOI: 10.1103/physrevc.97.012801
Abstract: Carbon burning is a critical phase for nucleosynthesis in massive stars. The conditions for igniting this burning stage, and the subsequent isotope composition of the resulting ashes, depend strongly on the reaction rate for C12+C12… read more here.
Keywords: reaction rate; carbon burning; massive stars; rate ... See more keywords