5 papers
Binary black holes gone MAD: Magnetically arrested minidisks around nonspinning black holes
Vikram Manikantan, Vasileios Paschalidis
We demonstrate the formation of magnetically arrested minidisks (MAM) around equal-mass, nonspinning binary black holes with magnetohydrodynamic simulations of circumbinary disk ac…
Optimizing Kilonova Searches: A Case Study of the Type IIb SN 2025ulz in the Localization Volume of the Low-Significance Gravitational Wave Event S250818k
Noah Franz, Bhagya Subrayan, Charles D. Kilpatrick +54
Kilonovae, the ultraviolet/optical/infrared counterparts to binary neutron star mergers, are an exceptionally rare class of transients. Optical follow-up campaigns are plagued by c…
Effects of eccentricity on accreting binary black holes: MHD simulations in full GR reveal novel periodicities in jet power and synchrotron spectra
Vikram Manikantan, Vasileios Paschalidis, Gabriele Bozzola
We perform simulations of magnetohydrodynamic accretion onto equal-mass, nonspinning binary black holes in 3+1 full general relativity addressing the effects of orbital eccentricit…
Coincident Multimessenger Bursts from Eccentric Supermassive Binary Black Holes
Vikram Manikantan, Vasileios Paschalidis, Gabriele Bozzola
Supermassive binary black holes are a key target for the future Laser Interferometer Space Antenna and excellent multimessenger sources across the electromagnetic (EM) spectrum. Ho…
Winds and Disk Turbulence Exert Equal Torques on Thick Magnetically Arrested Disks
Vikram Manikantan, Nicholas Kaaz, Jonatan Jacquemin-Ide +4
The conventional accretion disk lore is that magnetized turbulence is the principal angular momentum transport process that drives accretion. However, when dynamically important la…