RS CV sub n Binary Systems

摘要

An attempt is made to place in context the vast amount of data obtained as a result of X-ray, ultraviolet, optical, and microwave observations of RS CVn and similar spectroscopic binary systems. Emphasis is on the RS CVn systems and their long period analogs. The following questions are considered: (1) are the original defining characteristics still valid and still adequate, (2) what is the evidence for discrete active regions, (3) have any meaningful physical properties for the atmospheres of RS CVn systems been derived, (4) what do the flare observations tell about magnetic fields in RS CVn systems, (5) is there evidence for systematic trends in RS CVn systems with spectral type.