Identification of new cataclysmic variables in the 1RXS and USNO-B1.0 catalogs

TL;DR

This study used a novel optical variability search method on publicly available data to identify eight new cataclysmic variables and two potential quasars among unidentified X-ray sources, highlighting the Virtual Observatory's potential.

Contribution

The paper introduces an original optical variability search method and demonstrates its effectiveness in discovering new astrophysical objects in existing catalogs.

Findings

Identified 8 new cataclysmic variables

Discovered 2 possible Optically Violent Variable quasars

Showed the potential of Virtual Observatory for astrophysical discoveries

Abstract

As a result of applying the original optical variability search method on publicly available data, we have found eight new cataclysmic variables and two possible Optically Violent Variable quasars among the previously unidentified X-ray sources in the ROSAT catalog. We describe the search method and present the characteristics of the newly identified variable stars. The obtained results demonstrate the large potential of the concept of Virtual Observatory for identifying new objects of astrophysical interest.