Probing orbits of stellar mass objects deep in galactic nuclei with quasi-periodic eruptions -- II: population analysis

Abstract

Quasi-periodic eruptions (QPEs) are intense repeating soft X-ray bursts with recurrence times about a few hours to a few weeks from galactic nuclei. Though the debates on the origin of QPEs have not completely settled down, more and more analyses favor the interpretation that QPEs are the result of collisions between a stellar mass object (a stellar mass black hole or a main sequence star) and an accretion disk around a supermassive black hole (SMBH) in galactic nuclei. If this interpretation is correct, QPEs will be invaluable in probing the orbits of stellar mass objects in the vicinity of SMBHs, and further inferring the formation of extreme mass ratio inspirals (EMRIs), one of the major targets of spaceborne gravitational wave missions. In this work, we extended the EMRI orbital analysis in Paper I arXiv:2401.11190 to all the known QPE sources with more than $6$ flares observed. Among all the analyzed 5 QPE sources, two distinct EMRI populations are identified: 4 EMRIs are of low orbital eccentricity (consistent with 0) which should be born in the wet EMRI formation channel, and 1 mildly eccentric EMRI (with $e=0.25_{-0.20}^{+0.18}$ at 2-$\sigma$ confidence level) is consistent with the predictions of both the dry loss-cone formation channel and the Hills mechanism.

arXiv comment23 pages, 16 figures

References in corpus (62)

• The slope of the black-hole mass versus velocity dispersion correlation
• The European Photon Imaging Camera on XMM-Newton: The MOS Cameras
• The M-sigma and M-L Relations in Galactic Bulges and Determinations of their Intrinsic Scatter
• Bilby: A user-friendly Bayesian inference library for gravitational-wave astronomy
• Science with the space-based interferometer LISA. V: Extreme mass-ratio inspirals
• Starbursts near supermassive black holes: young stars in the Galactic Center, and gravitational waves in LISA band
• Nine-hour X-ray quasi-periodic eruptions from a low-mass black hole galactic nucleus
• Long-lag, Wide-Pulse Gamma-Ray Bursts
• Massive perturber-driven interactions of stars with a massive black hole
• Celestial mechanics in Kerr spacetime
• Relativistic Dynamics and Extreme Mass Ratio Inspirals
• X-ray Quasi-Periodic Eruptions from two previously quiescent galaxies
• X-ray quasi-periodic eruptions from the galactic nucleus of RX J1301.9+2747
• The orbital statistics of stellar inspiral and relaxation near a massive black hole: characterizing gravitational wave sources
• Binary Encounters With Supermassive Black Holes: Zero-Eccentricity LISA Events
• Formation Rate of Extreme Mass Ratio Inspirals in Active Galactic Nuclei
• On strong mass segregation around a massive black hole: Implications for lower-frequency gravitational-wave astrophysics
• Quasi-periodic eruptions from impacts between the secondary and a rigidly precessing accretion disc in an extreme mass-ratio inspiral system
• GSN 069 -- A Tidal Disruption Near-Miss
• X-ray Quasi-periodic Eruptions driven by Star-Disc Collisions : Application to GSN069 and Probing the Spin of Massive Black Holes
• Interacting Stellar EMRIs as Sources of Quasi-Periodic Eruptions in Galactic Nuclei
• Repeating tidal disruptions in GSN 069: Long-term evolution and constraints on quasi-periodic eruptions' models
• Disc tearing: implications for black hole accretion and AGN variability
• Steady state relativistic stellar dynamics around a massive black hole
• Wet Extreme Mass Ratio Inspirals May Be More Common For Spaceborne Gravitational Wave Detection
• Stellar transits across a magnetized accretion torus as a mechanism for plasmoid ejection
• Quasi-periodic eruptions from mildly eccentric unstable mass transfer in galactic nuclei
• A self-lensing binary massive black hole interpretation of quasi-periodic eruptions
• Host galaxy properties of quasi-periodically erupting X-ray sources
• Quasi--Periodic Eruptions from Galaxy Nuclei
• Hierarchical test of general relativity with gravitational waves
• Tormund's return: Hints of quasi-periodic eruption features from a recent optical tidal disruption event
• Magnetically Dominated Disks in Tidal Disruption Events and Quasi-Periodic Eruptions
• A disk instability model for the quasi-periodic eruptions of GSN 069
• Quasi-Periodic Erupters: A Stellar Mass-Transfer Model for the Radiation
• Quasi-periodic Eruptions from Helium Envelope of Hydrogen-deficient Stars Stripped by Supermassive Black Holes
• The complex time and energy evolution of quasi-periodic eruptions in eRO-QPE1
• Unstable Mass Transfer from a Main-Sequence Star to a Supermassive Black Hole and Quasi-Periodic Eruptions
• A long decay of X-ray flux and spectral evolution in the supersoft active galactic nucleus GSN 069
• X-ray eruptions every 22 days from the nucleus of a nearby galaxy
• Alive and kicking: A new QPE phase in GSN 069 revealing a quiescent luminosity threshold for QPEs
• Modified models of radiation pressure instability in application to 10, 10${}^5$, and 10${}^7$ $M_{\odot }$ accreting black holes
• RX J1301.9+2747: A Highly Variable Seyfert Galaxy with Extremely Soft X-ray Emission
• Monthly quasi-periodic eruptions from repeated stellar disruption by a massive black hole
• A model for the possible connection between tidal disruption event and quasi-periodic eruption in GSN 069
• Evidence of a tidal disruption event in GSN 069 from the abnormal carbon and nitrogen abundance ratio
• Supercritical accretion of stellar-mass compact objects in active galactic nuclei
• In-situ extreme mass ratio inspirals via sub-parsec formation and migration of stars in thin, gravitationally unstable AGN discs
• Probing orbits of stellar mass objects deep in galactic nuclei with quasi-periodic eruptions
• Dynamical constraints on the origin of the young B-stars in the Galactic center
• Application of the disk instability model to all Quasi-Periodic Eruptions
• Extreme mass ratio inspirals and tidal disruption events in nuclear clusters. I. Time dependent rates
• Milli-Hertz Gravitational Wave Background Produced by Quasi-Periodic Eruptions
• Cosmic hide and seek: the volumetric rate of X-ray quasi-periodic eruptions
• Central Engine and Host Galaxy of RXJ 1301.9+2747: A Multiwavelength View of a Low-mass Black Hole Active Galactic Nuclei with Ultra-soft X-ray Emission
• Mass-gap extreme mass ratio inspirals
• Extreme mass-ratio gravitational-wave sources: Mass segregation and post binary tidal-disruption captures
• Gravitational-wave background from compact objects embedded in AGN accretion disks
• Alive but Barely Kicking: News from 3+ years of Swift and XMM-Newton X-ray Monitoring of Quasi-Periodic Eruptions from eRO-QPE1
• Active Nucleus in a Poststarburst Galaxy : KUG 1259+280
• Repeating Nuclear Transients as Candidate Electromagnetic Counterparts of LISA Extreme Mass Ratio Inspirals
• Angular Momentum Transfer in QPEs from Galaxy Nuclei

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• Secondary spins of extreme mass ratio inspirals: A probe to the formation channels
• Ultraviolet Spectral Evidence for Ansky as a Slowly Evolving Featureless Tidal Disruption Event with Quasiperiodic Eruptions
• The Secular Periodic Evolution of X-ray Quasi-periodic Eruptions Driven by Star-disc Collisions
• Prospects for Time-Domain and Multi-Messenger Science with eXTP
• A Torus Remnant Revealed by the Infrared Echo of Tidal Disruption Event AT 2019qiz: Implications for the Missing Energy and Quasiperiodic Eruption Formation
• Gravitational Radiation-Driven Chaotic Tide in a White Dwarf-Massive Black Hole Binary as a Source of Repeating X-ray Transients
• Dynamical Measurement of Supermassive Black Hole Masses: QPE Timing Method
• Extended Emission-line Region in a Poststarburst Galaxy Hosting Tidal Disruption Event AT2019qiz and Quasiperiodic Eruptions
• Captured are circularized: A relativistic treatment of extreme mass ratio inspirals crossing accretion disks
• Testing the Shock-cooling Emission Model from Star-Disk Collisions for Quasiperiodic Eruptions
• Binary Stars Approaching Supermassive Black Holes: Hydrodynamics of Stellar Collisions, Mass Fallback and Partial TDEs
• Hubble constant measurement from QPEs as electromagnetic counterparts to extreme mass ratio inspirals
• Extreme Mass Ratio Inspirals in Light of Quasi-periodic Eruptions: Milli-Hertz Gravitational Wave Background
• Gravitational Wave Signatures of Quasi-Periodic Eruptions: LISA Detection Prospects for RX J1301.9+2747