A Supermassive Black Hole or a Compact Object Without Events Horizon.pdfVIP

A Supermassive Black Hole or a Compact 8 9 Object Without Events Horizon ? 9 1 y L.V.Verozub E.Yu.Bannikova a M Kharkov State University, Kharkov 310077, 2 Kharkov, Ukraine, 2 E-mail:verozub@gravit.kharkov.ua 1 v 9 9 Abstract 2 5 Previously it was shown that gravitation theory allows the ex- 0 istance of supermassive stable compact configurations of the degen- 8 9 erated electronic gas ( L.V.Verozub, Astr. Nacr. 317 (1996) 107 ) / without events horizon. In the present paper the simplest model of h p such kind of objects in gas environment has been considered. It is o- shown that at the spherically symmetric accretion onto the object the r luminosity is about 1037erg/s for the mass accretion rate of the order t s of M = 10−6M⊙ /year . The vawelength of the radiation maximum is a : ◦ v about 400 ÷ 500 A. There is an ionization zone around the central i objects with the radius about 10−3pc . X r a 1 Introduction The analysis of the observation data gives evidence for the existance of a 6 massive ( about 2.5 · 10 M⊙ ) compact object in the Galactic Center [1]. The observation data do not allow to make a definite conclusion about the nature of the object. For this reason it is identified , as a rule, with a supermassive black hole. Another possibility is con