Work

The ultra-luminous X-ray phase as a progenitor channel for LIGO–Virgo–KAGRA sources

Year: 2025

Type: conference-paper

Abstract: The gravitational-wave signals detected by the LIGO, Virgo, and KAGRA (LVK) gravitational-wave network provide valuable insights into the masses, distances, and sky locations of compact binary systems. However, the evolutionary origins of these systems remain uncertain. In this study, we investigate ultra-luminous X-ray sources (ULXs) as potential progenitors of the double compact objects (DCOs) detected by the LVK collaboration. Using a population of ULXs generated in our previous work, we model the formation of DCOs with ULX priors and compare their properties with those inferred from LVK observations. Our results indicate that DCOs formed through the ULX channel can account primarily for the low-mass end of the LVK-detected population.

DOI: 10.22323/1.514.0012

Authors: Lutendo Nyadzani, Soebur Razzaque, Justin Finke

Institution: University of Johannesburg

Language: English

Topic: Pulsars and Gravitational Waves Research

Subfield: Astronomy and Astrophysics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: gold

Funders: National Research Foundation, Office of Naval Research

OpenAlex ID: W4416395067

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