# Magnetic Cataclysmic Variables discovered in hard X-rays

## TL;DR

This paper reviews the discovery and X-ray emission properties of magnetic cataclysmic variables, especially intermediate polars, identified through hard X-ray surveys, highlighting their significance in the galactic X-ray source population.

## Contribution

It presents new findings from XMM-Newton observations of INTEGRAL and Swift sources, nearly doubling known magnetic cataclysmic variables and analyzing their X-ray characteristics.

## Key findings

- Magnetic cataclysmic variables constitute 20% of galactic X-ray sources.
- Intermediate polars are the dominant subclass among these sources.
- The study identifies commonalities and outliers in X-ray emission properties.

## Abstract

Among hard X-ray galactic sources detected by INTEGRAL and Swift surveys, those discovered as accreting white dwarfs have surprisingly boosted in number, representing 20% of the galactic sample. The majority are identified as magnetic cataclysmic variabiles of the intermediate polar type suggesting this subclass as an important constituent of galactic population of X-ray sources. In this conference-proceeding, we review the X-ray emission properties as observed with our ongoing XMM-Newton programme of newly discovered INTEGRAL and/or Swift sources that enlarged almost by a factor of two, identifying cataclysmic variabiles commonalities and outliers.