INTEGRAL view on Cataclysmic Variables and Symbiotic Binaries

Journal
Date Issued
2020
Author(s)
Alexander Lutovinov
•
Valery Suleimanov
•
Gerardo Juan Manuel Luna
•
Sergey Sazonov
•
•
Lorenzo Ducci
•
Victor Doroshenko
•
Maurizio Falanga
DOI
Abstract
Accreting white dwarfs (WDs) constitute a significant fraction of the hard X-ray sources detected by the INTEGRAL observatory. Most of them are magnetic Cataclysmic Variables (CVs) of the intermediate polar (IP) and polar types, but the contribution of the Nova-likes systems and the systems with optically thin boundary layers, Dwarf Novae (DNs) and Symbiotic Binaries (or Symbiotic Stars, SySs) in quiescence is also not negligible. Here we present a short review of the results obtained from the observations of cataclysmic variables and symbiotic binaries by INTEGRAL. The highlight results include the significant increase of the known IP population, determination of the WD mass for a significant fraction of IPs, the establishment of the luminosity function of magnetic CVs, and uncovering origin of the Galactic ridge X-ray emission which appears to largely be associated with hard emission from magnetic CVs.
Volume
91
Uri
Url
Issn Identifier
1387-6473
Ads BibCode
2020NewAR..9101547L
Rights
open.access
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