Publication Abstracts
Arnett 1967
Arnett, W.D., 1967: Mass dependence in gravitational collapse of stellar cores. Can. J. Phys., 45, 1621-1641, doi:10.1139/p67-126.
The mass dependence of the behavior of a stellar core undergoing gravitational collapse is examined, using an improved equation of state and improved mean-free path for energy transfer by neutrinos and antineutrinos. Energy loss due to the escape of muon-type neutrinos is included. For Mcore ∼ 2M☉ and 4M☉ there is explosive mass ejection. A neutron-star remnant of 0.56 M☉ is left in the 2M☉ case, while in the 4M☉ case the remnant mass is 2.46M☉. Upon cooling, the latter remnant may not be able to remain stable because of general relativistic effects. For Mcore ∼ 8M☉ and 32M☉ the models were too opaque to electron-type neutrinos to eject matter. In both cases they cooled by copious muon-type neutrino emission (to which they were transparent) and developed dense (ρ ≳ 1015/cc) central regions in which general relativistic effects became important. It appears that highly evolved stars with Mcore ≳ 4M☉ may not be able to avoid the Schwarzschild singularity of general relativity.
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BibTeX Citation
@article{ar07000g,
author={Arnett, W. D.},
title={Mass dependence in gravitational collapse of stellar cores},
year={1967},
journal={Canadian Journal of Physics},
volume={45},
pages={1621--1641},
doi={10.1139/p67-126},
}
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RIS Citation
TY - JOUR ID - ar07000g AU - Arnett, W. D. PY - 1967 TI - Mass dependence in gravitational collapse of stellar cores JA - Can. J. Phys. JO - Canadian Journal of Physics VL - 45 SP - 1621 EP - 1641 DO - 10.1139/p67-126 ER -
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