Mass estimate of the Swift J 164449.3+573451 supermassive black hole based on the 3:2 QPO resonance hypothesis

Abstract

A dormant Swift source J 164449.3+573451 (Sw 164449+57)recently experienced a powerful outburst, caused most probably by a tidal disruption of a star by the super-massive black hole at the center of the source. During the outburst, a quasi periodic oscillation (QPO) was detected in the observed X-ray flux from Sw 164449+57. We show that if the observed QPO belongs to a "3:2 twin peak QPO" (with the second frequency not observed), the mass of the black hole in Sw 164449+57 is rather low, M ~ 10^5 M_sun, and the source belongs to a class of intermediate mass black holes. The low mass of the source has been pointed out previously by several authors.

Accepted by Astronomy and Astrophysics

References in corpus (4)

• General Relativistic Magnetohydrodynamic Simulations of Magnetically Choked Accretion Flows around Black Holes
• Observational Evidence for a Correlation Between Jet Power and Black Hole Spin
• A 200-s Quasi-Periodicity Following the Tidal Disruption of a Star by a Dormant Black Hole
• Jets from Tidal Disruptions of Stars by Black Holes

Cited by in corpus (12)

• Observational evidence for intermediate-mass black holes
• Evolution of Accretion Disks in Tidal Disruption Events
• Jets from Tidal Disruption Events
• Universal scaling of the 3:2 twin-peak quasi-periodic oscillation frequencies with black hole mass and spin revisited
• Quasi-Periodic Variations in X-ray Emission and Long-Term Radio Observations: Evidence for a Two-Component Jet in Sw J1644+57
• Possible ~0.4 hour X-ray quasi-periodicity from an ultrasoft active galactic nucleus
• Tidal Disruption of Stars by Supermassive Black Holes -- XMM-Newton Highlights and the Next Decade
• Late-time X-ray Observations of the Jetted Tidal Disruption Event AT2022cmc: The Relativistic Jet Shuts Off
• Host Galaxy Properties and Black Hole Mass of Swift J164449.3+573451 from Multi-Wavelength Long-Term Monitoring and HST Data
• Polarization of Astrophysical Events with Precessing Jets
• Prospects for Time-Domain and Multi-Messenger Science with eXTP
• Long-term Evolution of the Short-term X-ray Variability of the Jetted TDE Swift J1644+57