A search for a present-day candidate for the Comet P-Tunguska-1908 - Astrophysics > Earth and Planetary AstrophysicsReport as inadecuate




A search for a present-day candidate for the Comet P-Tunguska-1908 - Astrophysics > Earth and Planetary Astrophysics - Download this document for free, or read online. Document in PDF available to download.

Abstract: The reason for the horizontal turn of the Tunguska-1908 bolide trajectoryremains difficult to understand. It finds explanation, however, in the NewExplosive Cosmogony of minor bodies as having been caused by an explosion of apart M up to 10^12 g of the comet nucleus whose ices contained products ofits electrolysis, 2H2+O2. In detonation, this part was repelled from the moremassive unexploded nucleus remnant, changed the direction of its own motion by~10^o and imparted its kinetic energy, in expanding and slowing down, to theair in producing an effect of a high-altitude explosion. Because there are notraces of a fall of the more massive remnant, one comes to the conclusion thaton passing through the Earth-s atmosphere it again entered a heliocentric orbitthe hypothesis of V.Vernadskiy, 1932. A search for this comet,P-Tunguska-1908, among the 6077 known NEAs shows the 2005NB56 object to be themost appropriate candidate for a number of its parameters a size is ~ 170 m, P= 2.106 y, e = 0.473 and i = 6.8^o. Back integration of its orbit made withoutallowing for non-gravitational effects suggests that it had passed the Earth onJune 27, 1908 at a distance of 0.06945 AU. It is quite possible that a properinclusion of even fairly weak non-gravitational forces would make its orbit fitin parameters that of the Tunguska bolide.



Author: E.M.Drobyshevski, T.Yu.Galushina, M.E.Drobyshevski

Source: https://arxiv.org/



DOWNLOAD PDF




Related documents