Cataclysmic Variables — X-rays and Optical Activity in V1223 Sgr and V709 Cas

Acta Polytechnica

R. Gális¹  E. Kundra¹  F. Münz¹  L. Hric¹ 

关键词: Cataclysmic variables;    optical and X-ray variability;    mass transfer and accretion.;   

DOI  :  

来源: Czech Technical University in Prague, Faculty of M

【 摘 要 】

Intermediate polars are a major fraction of all cataclysmic variables detected by INTEGRAL in hard X-ray. These objects have recently been proposed to be the dominant X-ray source population detected near the Galactic centre, and they also contribute significantly to X-ray diffuse Galactic ridge emission. Nevertheless, only 25% of all known intermediate polars have been detected in hard X-ray. This fact can be related to the activity state of these close interacting binaries.A multi-frequency (from optical to X-ray) investigation of intermediate polars is essential for understanding the physical mechanisms responsible for the observed activity of these objects.

【 授权许可】

Unknown