Emission spectrum of Sagittarius A$^*$ and the neutrino ball scenario
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The emission spectrum of the supermassive compact dark object at the Galactic center is calculated in the framework of standard thin accretion disk theory assuming that the compact object is a neutrino ball of $2.6 \times 10^{6}M_{\odot}$ instead of a supermassive black hole. The neutrino ball scenario could explain the observed radio and infrared emission spectrum of the Galactic center for wavelengths between $λ=0.3 {\rm cm}$ and $λ=10^{-3} {\rm cm}$, if the neutrino mass and the accretion rate fulfil some constraints.
9 pages, 6 postscript files
9 pages, 6 postscript files