Unveiling the properties of galaxy cores excavated by supermassive black hole binaries with SHARP

arXiv:2606.31434 · astro-ph.GA, astro-ph.IM · Submitted 2026-06-30 · Read on arXiv

E. Bortolas, E. Portaluri, E. Dalla Bonta', C. Arcidiacono, P. Severgnini, A. Gualandris

astro-ph.GA, astro-ph.IM

Submitted: 2026-06-30

Comments: 8 pages, part of the SHARP Science Book collection on New Astronomy (https://www.sciencedirect.com/special-issue/10W3B6JJBXH)

Journal ref: New Astronomy, Volume 128, 2026, 102593, ISSN 1384-1076 https://www.sciencedirect.com/science/article/pii/S138410762600076X

DOI: 10.1016/j.newast.2026.102593

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

Terminology

• Core — 82× in this paper · explained in 2 episodes
• Anisotropy — 8× in this paper · explained in 3 episodes
• AGN — 2× in this paper · explained in 1 episode
• Elias — 1× in this paper · explained in 2 episodes
• Gravitational Wave Emission — 1× in this paper · explained in 2 episodes
• Velocity Dispersion — 1× in this paper · explained in 2 episodes

Sources

• The Science of the Einstein Telescope
• Astrophysics with the Laser Interferometer Space Antenna
• The influence of Massive Black Hole Binaries on the Morphology of Merger Remnants
• LISA Definition Study Report
• The Enhanced Resolution Imager and Spectrograph for the VLT
• Eight New Ultramassive Black Hole Masses confirm Best Correlation with Galaxy Core Sizes
• Galaxy Core Formation by Supermassive Black Hole Binaries: the Importance of Realistic Initial Conditions and Galaxy Morphology
• The second data release from the European Pulsar Timing Array: IV. Implications for massive black holes, dark matter and the early Universe
• The Merger Rates and Mass Assembly Histories of Dark Matter Haloes in the Two Millennium Simulations
• First Light for the GRAVITY+ Adaptive Optics: Extreme Adaptive Optics for the Very Large Telescope Interferometer
• Ejection of Supermassive Black Holes from Galaxy Cores
• Long-term evolution of massive black hole binaries. IV. Mergers of galaxies with collisionally relaxed nuclei
• The Near-Infrared Spectrograph (NIRSpec) on the James Webb Space Telescope I. Overview of the instrument and its capabilities
• A dormant, overmassive black hole in the early Universe
• Core formation by binary scouring and gravitational wave recoil in massive elliptical galaxies
• A CEERS Discovery of an Accreting Supermassive Black Hole 570 Myr after the Big Bang: Identifying a Progenitor of Massive z > 6 Quasars
• A black hole in a near-pristine galaxy 700 million years after the Big Bang
• Hypercompact Stellar Systems Around Recoiling Supermassive Black Holes
• Dynamical Friction in a Gaseous Medium
• Planck 2013 results. XVI. Cosmological parameters

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