Multifrekvenční výzkum symbiotických dvojhvězd

Merc, Jaroslav

Symbiotic stars are among the widest interacting binaries. They consist of a late-type, cool giant and a hot component, which is typ- ically a white dwarf or in a few cases a neutron star. The presented thesis summarizes all the relevant information on the symbiotic bi- naries, including both components of systems, their activity, and other manifestations of variability. Symbiotic systems are presented as unique astrophysical laboratories in the study of stellar evolution, mass transfer and its accretion, stellar winds, jets, and other physical processes. A part of the thesis presents the New Online Database of Sym- biotic Variables, a modern, complex, and most up-to-date catalog of these binaries that currently contains more than 1 000 objects in the Milky Way and another 16 galaxies. At the same time, the Database constitutes the most comprehensive collection of orbital, stellar, and observational parameters of all known symbiotic binaries. These data are studied in detail in order to better understand the symbiotic pop- ulation. From the Database, poorly characterized symbiotic candidates have been selected and studied on the basis of new and archival ob- servational data and information from the literature. A substantial sample of 47 symbiotic candidates from the literature and 3 newly...

host :: přihlásit Digitální repozitář
		Hledej		Nový záznam		Nápověda		O repozitáři