Аннотация и ключевые слова
Аннотация (русский):
By analysing the kinematics of the satellites of giant galaxies, it is possible to estimate the total mass of systems within 300 kpc. The Andromeda Galaxy (M 31) is the closest giant galaxy with a well known three-dimensional satellite system. Estimating its total mass is extremely important for understanding the halo distribution of dark matter, as well as for studying the kinematics and dynamics of the Local Group of galaxies. In this work we use the improvement of the projected mass method to take into account the three-dimensional distribution of the satellites, which allows us to obtain more reliable and accurate estimates of the total mass of the system. Using a sample of 29 satellites with precise distance measurements and radial velocities, we estimate the total mass of M 31 to be $M = (1.7\pm0.4) \times 10^{12}$ $M_{\odot}$ on a scale of 300 kpc. This result is in good agreement with the work of other studies.

Ключевые слова:
galaxies: kinematics and dynamics, Local Group, dwarf
Список литературы

1. Bahcall J. and Tremaine S., 1981, The Astrophysical Journal, 244, p. 805

2. Veljanoski J., Ferguson A., Mackey A., et al., 2013, The Astrophysical Journal Letters, 768, id. L33

3. Watkins L., Evans N., An J.H., 2010, Monthly Notices of the Royal Astronomical Society, 406, p. 264

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