Results 21 to 30 of about 887,903 (202)

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 ...
Thielemann, F.   +3 more
openaire   +3 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.
Bonnell, Ian A.   +2 more
openaire   +2 more sources

Yellow Supergiants and Post-red Supergiant Evolution in the Large Magellanic Cloud

open access: yesThe Astronomical Journal, 2023
The empirical evidence for an upper-mass limit for the red supergiant (RSG) progenitors of the Type II-P SNe at about 18 MSun, raises questions about the fate of the most luminous, most massive RSGs.
Roberta M. Humphreys   +2 more
doaj   +1 more source

Nucleonic Direct Urca Processes and Cooling of the Massive Neutron Star by Antikaon Condensations

open access: yesAdvances in Astronomy, 2020
Nucleonic direct Urca processes and cooling of the massive neutron stars are studied by considering antikaon condensations. Calculations are performed in the relativistic mean field and isothermal interior approximations.
Yan Xu   +3 more
doaj   +1 more source

MASSIVE COMPACT STARS AS QUARK STARS [PDF]

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

Early-forming Massive Stars Suppress Star Formation and Hierarchical Cluster Assembly

open access: yesThe Astrophysical Journal, 2023
Feedback from massive stars plays an important role in the formation of star clusters. Whether a very massive star is born early or late in the cluster formation timeline has profound implications for the star cluster formation and assembly processes. We
Sean C. Lewis   +10 more
doaj   +1 more source

Massive Hypervelocity Runaway Stars in the Large Magellanic Cloud

open access: yesThe Astrophysical Journal, 2023
Since the hypervelocity stars were discovered in the Milky Way, various mechanisms have been proposed to explain these runaway stars. Up to now, however, the dominant ejected mechanism of hypervelocity stars is still unclear.
Zehao Lin   +5 more
doaj   +1 more source

Massive Stars as the Radiant Queens of the Universe—The Case of ζ Puppis

open access: yesUniverse, 2022
Since the Cosmic Dawn, massive stars have been playing a crucial role as the chemical recycling engines of galaxies that enable the birth of new stars and planetary systems, not only through the strong winds that they exhibit during their relatively ...
Tahina Ramiaramanantsoa   +1 more
doaj   +1 more source

The Evolution of Massive Stars [PDF]

open access: yesSymposium - International Astronomical Union, 1997
Massive stars are the crossroads of many important astrophysical problems and thus a proper understanding of their evolution is very needed. They are the main sources of UV radiation, by heating the interstellar dust they produce the far-IR luminosities of galaxies.
openaire   +1 more source

X-ray emission from massive stars: lessons learned and remaining mysteries [PDF]

open access: yes, 2021
Nearly all types of massive stars are known to display X-ray emission at some level. Tremendous insight into this phenomenon has been gained thanks to the sensitivity of the current generation of X-ray satellites and X-ray observations are nowadays an ...
Rauw, Grégor
core   +1 more source

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