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Information × Registration Number 0207U004737, 0103U000671 , R & D reports Title Mass spectrum influence on star-substar clusters statistical characteristics popup.stage_title Head Zakhozhaj Volodimir Anatoliyovich, Registration Date 14-08-2007 Organization Kharkov national university named after V.N. Karazin popup.description2 We received velocity-distance relations for galaxies belonging to Local Group (LG) and for bright galaxies within 10 Mpc around the Milky Way. For Our Star System velocity-distance relation (where Vr in km/s; D in Mpc): Vr = 677(±251)•D - 79(±31). For galaxies of the Andromeda's system (M 31): Vr = - 210(±413)•D + 133(±303); for galaxies of the Andromeda's system and periphery LG: Vr = - 32(±113)•D + 13(±88). Velocity-distance relation for the Local Group as a whole: Vr = 4.0(±36.6)•D - 12(±21.8). For the spherical layer with D = 1ё10 Mpc, where there are 37 galaxies which are brighter than МВ = -16: Vr = 77.5(±5.1)•D + 0.6(±30.5). This relation corresponds to Hubble's constant Н = 78 ± 5 in km/(s•Mpc). The obtained result for LG galaxies is interpreted by closed Local Group since within the error limits velocity-distance relation one can write down in the following way Vr(D) ? 0 km/s. The dynamically closed model LG is computed. According to this model mass of the Local Group is МLG = 3•1012 m8 andmaximal radius is RLGmax = 1.1 Mpc, which it had 3 Gyr ago. This model corresponds to the observed radial velocity of galaxy M 31 relatively to the Galactic Centre Vr = - 60±5 km/s and to age of the Universe 14 Gyr. This model also forecasts uniformly acceleration encounter of the galaxies of Milky Way and М 31 with gravity acceleration g " 3 mA/s2. Based on the observational data (distance and radial velocity) for the galaxies belonging to the Milky Way's family, we estimated eccentricity-period relations. Attention is paid to possible connection of these relations with space structure of Our Star System. On condition that galaxies of the Milky Way and М 31 are double system we estimated relations of orbital characteristics from true anomaly. These relations correspond to the observed radial velocity and distance of the galaxy M 31 relatively to of the Galactic Centre. The orbital period 22±1 Gyr corresponds to diameter of the Local Group's. For stars and substars whose age does not exceed 10 Myr, their possible total mass spectrum of protostars has been estimated. The possible low massive component of the stellar and substellar IMF was estimated, which took place 10 Myr ago. Product Description popup.authors popup.nrat_date 2020-04-02 Close
R & D report
Head: Zakhozhaj Volodimir Anatoliyovich. Mass spectrum influence on star-substar clusters statistical characteristics. (popup.stage: ). Kharkov national university named after V.N. Karazin. № 0207U004737
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Updated: 2026-03-24