Highly regular oscillations in black hole binary with heartbeat variability

Paper Title:

Highly-coherent quasi-periodic oscillations in the 'heartbeat' black hole X-ray binary IGR J17091-3624

Published on:

18 January 2024

Primary Category:

High Energy Astrophysical Phenomena

Paper Authors:

Jingyi Wang,

Erin Kara,

Jeroen Homan,

James F. Steiner,

Diego Altamirano,

Tomaso Belloni,

Michiel van der Klis,

Adam Ingram,

Javier A. García,

Guglielmo Mastroserio,

Riley Connors,

Matteo Lucchini,

Thomas Dauser,

Joseph Neilsen,

Collin Lewin,

Ron A. Remillard

Bullets

Key Details

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IGR J17091-3624 shows structured 'heartbeat' variability unique among most black hole X-ray binaries

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In 2022 outburst, detected highly coherent 5-8 Hz QPOs when disk dominated spectrum

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QPO coherence higher than typically seen for low-frequency QPOs in these systems

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QPO strength and coherence highest when accompanied by weak exotic variability

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Evidence GRS 1915+105 shows similarly coherent QPO, suggests unique to 'heartbeat' binaries

Explore the topics in this paper

accretion-disks

black-hole-binaries

quasi-periodic-oscillations

variable-stars

x-ray-astronomy

AI generated summary

Highly regular oscillations in black hole binary with heartbeat variability

This paper reports on a 2022 outburst of the 'heartbeat' black hole X-ray binary IGR J17091-3624, where unusually coherent 5-8 Hz quasi-periodic oscillations (QPOs) were detected when variability was low and the spectrum was disk-dominated. This coherence was the highest ever seen for low-frequency QPOs in these systems. Evidence suggests this QPO may be uniquely associated with 'heartbeat' binaries like IGR J17091-3624 and GRS 1915+105 that show exotic variability.