Research Division Seminar
Symbiotic binaries in the era of Gaia and other surveys

Dr. Jaroslav Merc


Symbiotic stars are strongly interacting binaries with long orbital periods, containing an evolved red giant and a white dwarf or a neutron star embedded in a circumbinary nebula. The diverse processes occurring in these systems make them unique astrophysical laboratories and objects suitable for studies spanning virtually all the wavelengths, from γ-rays and X-rays through UV, optical, and infrared to radio waves. However, although the first symbiotic stars were discovered more than a century ago, many questions regarding their parameters, evolution, or symbiotic population remain open, even in the era of massive ground- and space-based surveys such as the groundbreaking Gaia, as well as modern machine-learning techniques. In this talk, I will review the most important information on symbiotic stars and introduce our ongoing projects aimed at providing a 'clean' sample of these interacting binaries, discovering new objects of this class, better characterizing their parameters, and ultimately helping us to understand the symbiotic population as a whole.

ID de reunión: 880 2379 0804

Código de acceso: 096954