High-energy emission of variable objects in the OMC--VAR catalogue

TL;DR

This paper presents the OMC-VAR catalogue of over 5000 variable sources observed by INTEGRAL's Optical Monitoring Camera, and explores their multi-wavelength counterparts to understand the engines of AGN and X-ray binaries.

Contribution

It introduces the first catalogue of variable sources from OMC and provides multi-wavelength analysis linking optical variability to high-energy and infrared data.

Findings

Preliminary multiwavelength counterparts identified for IBIS sources.

Insights into the nature of variable sources across different wavelengths.

Comparison of variability characteristics among different source types.

Abstract

OMC-VAR is the first catalogue of variable sources observed by the Optical Monitoring Camera (OMC) on board INTEGRAL. It includes photometry and variability data for more than 5000 sources of very different nature. In order to study the multi-wavelength similarities and differences of the engines powering AGN and X-ray binaries, especially those powered by a black hole, we have searched for counterparts in several high-energy and infrared catalogues, including the 4th IBIS/ISGRI soft gamma-ray survey catalogue, the XMM-Newton Serendipitous Source catalogue, the 2MASS All-Sky catalogue of Point Sources, the 2MASS Extended Source Catalog and the WISE All-Sky Data Release. Preliminary multiwavelength results for the IBIS counterparts are presented and discussed.