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Massive Stars in Transition [PDF]

open access: yesIn "Evolution of Massive Stars, Mass Loss and Winds", Eds M Heydari-Malayeri, Ph Stee, J.P. Zahn, EAS Publ. Series 13, p.119 (EDP Sciences), 2004, 2003
We discuss the various post-main sequence phases of massive stars, focusing on Wolf-Rayet stars, Luminous Blue Variables, plus connections with other early-type and late-type supergiants. End states for massive stars are also investigated, emphasising connections between Supernovae originating from core-collapse massive stars and Gamma Ray Bursts.
arxiv   +6 more sources

Multiplicity of Massive Stars [PDF]

open access: yesSymposium - International Astronomical Union, 2001
We discuss the observed multiplicity of massive stars and implications on theories of massive star formation. After a short summary of the literature on massive star multiplicity, we focus on the O-and B-type stars in the Orion Nebula Cluster, which constitute a homogenous sample of very young massive stars.
Hans Zinnecker   +2 more
openaire   +3 more sources

On the Formation of Massive Stars [PDF]

open access: yesThe Astrophysical Journal, 2002
We calculate numerically the collapse of slowly rotating, non-magnetic, massive molecular clumps, which conceivably could lead to the formation of massive stars. Because radiative acceleration on dust grains plays a critical role in the clump's dynamical evolution, we utilize a wavelength-dependent radiation transfer and a three component dust model ...
Harold W. Yorke, Cordula Sonnhalter
openaire   +3 more sources

The multiplicity of massive stars [PDF]

open access: yesProceedings of the International Astronomical Union, 2010
AbstractBinaries are excellent astrophysical laboratories that provide us with direct measurements of fundamental stellar parameters. Compared to single isolated stars, multiplicity induces new processes, offering the opportunity to confront our understanding of a broad range of physics under the extreme conditions found in, and close to, astrophysical
Hugues Sana, Chris Evans
openaire   +2 more sources

On the formation of massive stars [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 1998
We present a model for the formation of massive ($M > 10 M_\odot$) stars through accretion-induced collisions in the cores of embedded dense stellar clusters. This model circumvents the problem of accreting onto a star whose luminosity is sufficient to reverse the infall of gas.
Matthew R. Bate   +2 more
openaire   +3 more sources

Massive Stars and Their Supernovae [PDF]

open access: yes, 2010
Massive stars and their supernovae are prominent sources of radioactive isotopes, the observations of which thus can help to improve our astrophysical models of those. Our understanding of stellar evolution and the final explosive endpoints such as supernovae or hypernovae or gamma-ray bursts relies on the combination of magneto-hydrodynamics, energy ...
Friedrich-Karl Thielemann   +3 more
openaire   +4 more sources

The stability of massive stars [PDF]

open access: yesSymposium - International Astronomical Union, 1994
An investigation of the stability properties of stellar models describing massive stars is motivated observationally by the necessity to explain the observed Humphreys - Davidson (HD) limit and the variability of the most massive stars known, i.e. the existence of luminous blue variables (LBVs).
M. Kiriakidis, K. J. Fricke, W. Glatzel
openaire   +2 more sources

Massive Star Evolution [PDF]

open access: yesSymposium - International Astronomical Union, 1999
The evolution of massive stars is far from being fully understood, as we outline by pointing to a number of open problems related to massive stars in the Magellanic Clouds. We argue that rotation may be a key ingredient in the physics of massive stars.
Langer, Norbert, Heger, Alexander
openaire   +2 more sources

Massive Star Formation [PDF]

open access: yes, 2014
The enormous radiative and mechanical luminosities of massive stars impact a vast range of scales and processes, from the reionization of the universe, to the evolution of galaxies, to the regulation of the interstellar medium, to the formation of star clusters, and even to the formation of planets around stars in such clusters.
J. C. Tan   +7 more
openaire   +4 more sources

MASSIVE COMPACT STARS AS QUARK STARS [PDF]

open access: yesThe Astrophysical Journal, 2011
26 pages, 8 figures,The Astrophysical Journal (2011)
Hilario Rodrigues   +2 more
openaire   +4 more sources

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