Quasi-Periodic Inward Shock Formation from an Accretion Disk to a Black Hole and Its Application to Quasi-Periodic Oscillations in Microquasars
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Bibliographic record
Abstract
We performed 1.5D general relativistic simulations using a Kerr metric without disk viscosity for a model of high frequency quasi-periodic oscillations (QPOs) in microquasars. We found that quasi-periodic inward shock waves propagate from the accretion disk toward the black hole when we initially inject a disturbance into the disk. The frequency of the shock formation is approximately equal to the maximum epicyclic frequency in the disk (κmax), which is on the order of the frequency of high frequency QPOs in microquasars. κmax depends on the rotation of the black hole, and therefore we can estimate the value of the spin parameter of a black hole candidate (BHC) in a microquasar by comparing the high frequency QPO with κmax. We found that such values can be roughly estimated as 0.0 ≤a ≪ 0.4 for GRS 1915+105 and 0.85 ≪ a ≪ 1.0 for GRO J1655-40.
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Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
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Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
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