Abstract
Rapid rotation (rotation periods of the order of milliseconds) causes a significant deformation of the collapsed stellar iron core and hot young protoneutron star (JANKA and MÖNCHMEYER [1]). The ratio of polar extension and equatorial extension was found to be typically of the order of R p: R e ≅ 1: (1.5 – 2). It is reasonable to expect a similar deformation of the regions where neutrinos decouple from the core matter (‘neutrino sphere’).
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References
H.-T. Janka, R. Mönchmeyer: Astron. Astrophys. (1989), in press.
H.-T. Janka: in Proceedings of the 5th Workshop on Nuclear Astrophysics, ed. byW. Hillebrandt and E. Müller, (MPA/P1, Garching 1989) (p. 130).
H.-T. Janka, R. Mönchmeyer: Astron. Astrophys. 209, L5 (1989)
H.-T. Janka, W. Hillebrandt: Astron. Astrophys. (1989), in press.
K. Hirata, et al.: Phys. Rev. Lett. 58, 1490 (1987)
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Janka, HT. (1991). Neutrino Signal from Rapidly Rotating Collapsed Stellar Iron Cores. In: Woosley, S.E. (eds) Supernovae. Santa Cruz Summer Workshops in Astronomy and Astrophysics. Springer, New York, NY. https://doi.org/10.1007/978-1-4612-2988-9_60
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DOI: https://doi.org/10.1007/978-1-4612-2988-9_60
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