This research proposes an extension to the VAPEC framework to quantify outflow kinetic luminosity, momentum flux, and mass ejection rates in ULIRGs. The method introduces velocity-resolved ionization components, multi-temperature outflow geometry modeling, and Bayesian inference for robust uncertainty quantification.
Key findings
VAPEC lacks capability to derive outflow energetics from spectral features.
Proposed extension includes velocity-resolved plasma models and Bayesian inference.
Direct calculation of kinetic luminosity, momentum flux, and mass outflow rate.
Validated against XMM-Newton and Chandra observations of prototypical ULIRGs.
Limitations & open questions
Current VAPEC implementations face limitations in modeling outflow kinematics.
Standard χ2 minimization provides insufficient error propagation for derived physical quantities.