New FNST scalar-tensor generalization of JNW spacetime is used in GR hydrodynamic simulations of BHL accretion, yielding hydrodynamically generated QPO-like frequencies overlapping observed ranges in stellar-mass compact object systems.
Donmez, JHEAp 45, 1 (2025) , arXiv:2408.10102 [astro-ph.HE]
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Numerical BHL accretion simulations in disformal Kerr spacetime produce QPO frequencies consistent with observations from GRS 1915+105, M82 X-1, NGC 5408 X-1, and RE J1034+396.
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QPO-like Signatures and Hydrodynamical Variability in Accretion around a JNW-type Compact Spacetime in Freund-Nambu Scalar-Tensor Gravity
New FNST scalar-tensor generalization of JNW spacetime is used in GR hydrodynamic simulations of BHL accretion, yielding hydrodynamically generated QPO-like frequencies overlapping observed ranges in stellar-mass compact object systems.
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Disformal Kerr Imprints on BHL Accretion: Shock Morphology, PSD Signatures, and Observational QPO Counterparts
Numerical BHL accretion simulations in disformal Kerr spacetime produce QPO frequencies consistent with observations from GRS 1915+105, M82 X-1, NGC 5408 X-1, and RE J1034+396.