Neutrino Emission from Proton–Photon Jet Interactions in Microquasars

Microquasars are candidate sites for high-energy particle production within our galaxy. Because their distances and compact emission regions limit direct observational constraints, numerical simulations are useful for connecting jet dynamics with possible multi-messenger signatures. This work models neutrino production from relativistic magneto-hydrodynamic microquasar jets, focusing on the proton–photon (pγ) channel associated with interactions between accelerated protons and ambient photon fields. Proton–proton (pp) interactions are acknowledged as a possible process in dense environments, but they are not modeled in the present calculation. A ray-tracing procedure is applied to the hydrodynamic simulation output to produce synthetic neutrino images from a stationary observer’s perspective. Synthetic spectra and intensity maps are presented and compared with representative sensitivities of current and future neutrino detectors.