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Heavy neutrino ball as a possible solution to the "blackness problem" of the Galactic center

David Tsiklauri·Raoul D. Viollier
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Abstract

It has been recently shown (Tsiklauri & Viollier, 1998a) that the matter concentration inferred from observed stellar motion at the galactic center (Eckart & Genzel, 1997, MNRAS, 284, 576 and Genzel et al., 1996, ApJ, 472, 153) is consistent with a supermassive object of $2.5 \times 10^6$ solar masses, composed of self-gravitating, degenerate heavy neutrinos. It has been furthermore suggested (Tsiklauri & Viollier, 1998a) that the neutrino ball scenario may have an advantage that it could possibly explain the so-called "blackness problem" of the galactic center. Here, we present a quantitative investigation of this statement, by calculating the emitted spectrum of Sgr A$^*$ in the framework of standard accretion disk theory.

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David Tsiklauri, Raoul D. Viollier. 1998-08-05. Heavy neutrino ball as a possible solution to the "blackness problem" of the Galactic center. https://doi.org/10.1016/s0927-6505(99)00083-3

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