V.A.Ambartsumian: Selected Papers: Part 1: Stars, Nebulae and Galaxies (Advances in Astronomy & Astrophysics)

This important volume contains selected papers by the celebrated astronomer Victor A. Ambartsumian, many of which are being published for the first time in English. The first section contains papers relating to nebulae, including his simple formulation of Zanstra's methods for determining the temperature of the central star illuminating a planetary nebula, which led to the first treatment of the radiative equilibrium of a planetary nebula. Section 2 contains Ambartsumian's papers on stellar dynamics, where he stresses the importance of the statistics of binary stars for the time scale of the universe. Section 3 contains his work on radiative transfer, including two papers in which he formulates the principles of invariance in the theory of radiative transfer. Section 4 relates to interstellar absorption, and includes articles on the fluctuations of brightness of our Galaxy, formulated in terms of the principle of invariance, and the astronomical consequences of this principle in stellar statistics.Gurzadyan, V. is the author of 'V.A.Ambartsumian: Selected Papers: Part 1: Stars, Nebulae and Galaxies (Advances in Astronomy & Astrophysics)', published 2011 under ISBN 9781904868262 and ISBN 1904868266.