X-ray galaxies selected from HyperLEDA database

TL;DR

This paper presents a new sample of 7759 galaxies with X-ray sources identified by cross-matching the 4XMM-DR10 catalog with HyperLEDA, providing a valuable resource for future multi-wavelength galaxy studies.

Contribution

The study introduces a large, well-characterized sample of X-ray emitting galaxies with detailed properties, enhancing resources for astrophysical research beyond previous datasets.

Findings

Majority of galaxies have nuclear X-ray emission (81%).

Almost half of the sample are elliptical galaxies (42%).

Sample includes galaxies with diverse morphological types and X-ray fluxes.

Abstract

We cross-matched the 4XMM-DR10 catalog with the HyperLEDA database and obtained the new sample of galaxies that contain X-ray sources. Excluding duplicate observations and false matches, we present a total of 7759 galaxies with X-ray sources. In the current work, we present general properties of the sample: namely the distribution in equatorial coordinates, radial velocity distribution, morphological type, and X-ray fluxes. The sample includes morphological classification for 5241 galaxies with X-ray emission, almost half of which, 42\%, are elliptical (E, E-S0). Most galaxies in the sample have nuclear X-ray emission (6313 or 81\%), and the remaining 1443 (19\%) present X-ray emission from the host galaxy. This sample can be used for future deep studies of multi wavelengths properties of the galaxies with X-ray emission.