Journal
PHYSICAL REVIEW D
Volume 97, Issue 4, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.97.044036
Keywords
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Funding
- NSF [PHY-1602536, PHY-1662211, PHY-1607449, OCI-1053575]
- NASA [NNX13AH44G, 80NSSC17K0070, NNX16AR67G]
- Simons foundation
- National Science Foundation [OCI 07-25070]
- state of Illinois
- NASA [NNX16AR67G, 895495] Funding Source: Federal RePORTER
- Division Of Physics
- Direct For Mathematical & Physical Scien [1602536] Funding Source: National Science Foundation
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We perform magnetohydrodynamic simulations in full general relativity of disk accretion onto nonspinning black hole binaries with mass ratio q = 29/36. We survey different disk models which differ in their scale height, total size and magnetic field to quantify the robustness of previous simulations on the initial disk model. Scaling our simulations to LIGO GW150914 we find that such systems could explain possible gravitational wave and electromagnetic counterparts such as the Fermi GBM hard x-ray signal reported 0.4 s after GW150915 ended. Scaling our simulations to supermassive binary black holes, we find that observable flow properties such as accretion rate periodicities, the emergence of jets throughout inspiral, merger and postmerger, disk temperatures, thermal frequencies, and the time delay between merger and the boost in jet outflows that we reported in earlier studies display only modest dependence on the initial disk model we consider here.
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