Modeling of thermal and non-thermal radio emission from HH80-81 jet

Protostellar jets are one of the primary signposts star formation. A handful protostellar objects exhibit radio emission from ionized jets, which a few display negative spectral indices, indicating presence synchrotron emission. In this study, we characterize spectra HH80-81 jet with help numerical model that have developed earlier, takes into account both thermal free-free and non-thermal mechanisms. For modeling jet, consider towards central region close to driving source along two Herbig-Haro objects, HH80 HH81. We obtained best-fit parameters for each these sources by fitting observational data corresponding frequency windows taken across epochs. Considering an electron number density in range $10^3 - 10^5$ cm$^{-3}$, thickness edges fraction relativistic electrons contribute $0.01^{\circ} 0.1^{\circ}$ $10^{-7} 10^{-4}$, respectively. parameter sets, indices lie -0.15 +0.11 within observed windows.