Observations of X-ray quasi-periodic eruptions

arXiv:2607.15359 · astro-ph.HE, astro-ph.GA · Submitted 2026-08-24 · Read on arXiv

Thomas Wevers, Joheen Chakraborty, Erwan Quintin, Michal Zajaček, Margherita Giustini

astro-ph.HE, astro-ph.GA

Submitted: 2026-08-24

Updated: 2026-08-25

Comments: Invited review chapter for the book "Mysterious Repeating Signals from Centers of Galaxies" (Eds. Dheeraj Pasham, Eric Coughlin, Riccardo Arcodia, Petra Sukova, Itai Linial, Springer Singapore, expected in 2027). 39 pages, 11 figures

License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/

Terminology

• AGN — 23× in this paper · explained in 1 episode
• Hysteresis — 8× in this paper · explained in 3 episodes
• Accretion Flows — 3× in this paper · explained in 1 episode
• Alternation — 3× in this paper · explained in 1 episode
• Velocity Dispersion — 3× in this paper · explained in 2 episodes
• Anti-correlation — 2× in this paper · explained in 3 episodes
• Consistency — 2× in this paper · explained in 3 episodes
• Limit Cycles — 2× in this paper · explained in 2 episodes
• Angular Momentum Transport — 1× in this paper · explained in 3 episodes
• Aperture — 1× in this paper · explained in 1 episode
• Bayesian Inference — 1× in this paper · explained in 5 episodes
• Calibration — 1× in this paper · explained in 7 episodes
• European Space Astronomy Centre — 1× in this paper
• Fine-Tuning — 1× in this paper · explained in 5 episodes
• Gravitational Wave Emission — 1× in this paper · explained in 2 episodes
• Model-Agnostic — 1× in this paper · explained in 2 episodes
• Multi-messenger Astronomy — 1× in this paper · explained in 3 episodes
• Observational Selection Effects — 1× in this paper · explained in 2 episodes
• Population Synthesis — 1× in this paper · explained in 2 episodes
• Selection Bias — 1× in this paper · explained in 4 episodes
• Trace — 1× in this paper · explained in 2 episodes

Sources

• Repeating transients in galactic nuclei: confronting observations with theory
• Discovery of crested quasi-periodic eruptions following the most luminous SRG/eROSITA tidal disruption event
• Alive and Strongly Kicking: Stable X-ray Quasi-Periodic Eruptions from eRO-QPE2 over 3.5 Years
• Compact Accretion Disks in the Aftermath of Tidal Disruption Events: Parameter Inference from Joint X-ray Spectra and UV/Optical Photometry Fitting
• Needle in a Poissonian haystack -- An X-ray astronomer's guide to QPE fishing
• Resolving the Nuclear Environments of Tidal Disruption Event Host Galaxies within 45 pc
• A Host Galaxy Morphology Link Between Quasi-Periodic Eruptions and Tidal Disruption Events
• eROSITA-RU Tidal Disruption Events with Keck-I/LRIS: Sample Selection, Optical Properties, and Host Galaxy Demographics
• Spatially resolved optical and mid-infrared spectroscopy of SDSS1335+0728: implications for the origin of the Ansky event
• Galaxy scale consequences of tidal disruption events: extended emission line regions, extreme coronal lines and infrared-to-optical light echoes
• Collisions with tidal disruption event disks: implications for quasi-periodic X-ray eruptions
• A model-independent analysis of the variability of GRS 1915+105
• The Hot and Energetic Universe: A White Paper presenting the science theme motivating the Athena+ mission
• Science with the Ultraviolet Explorer (UVEX)
• Using Infrared Dust Echoes to Identify Bright Quasi-periodic Eruption Sources
• The DSA-2000 -- A Radio Survey Camera
• Gravitational Wave Signatures of Quasi-Periodic Eruptions: LISA Detection Prospects for RX J1301.9+2747

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