Speaker
Prof.
Vladimir Sokolov
(SAO RAS, St.-Petersburg)
Description
(1) There are two new observational facts: the mass spectrum of neutron stars and candidates to black holes shows an evident absence of compact objects with masses within the interval 2 - 6 solar ones, and in close binary stellar systems with a low-massive optical companion the most
probable mass value (a peak in the masses distribution of black hole candidates) is close to 7 masses of the Sun.
(2) In the totally non-metric field/scalar-tensor model of gravitational interaction the total mass of a compact relativistic object with extremely strong gravitational field (an analog of black holes in GR) is approximately equal to 6.7 solar masses with radius of a region filled with matter (quark-gluon plasma) approx. 10 m.
(3) Polarized emission of gamma-ray bursts, a black-body component in their spectrum and other observed properties could be explained by the direct manifestation of surface of these collapsars.
