Context :

Aims : – We carry out a general relativistic study of radiatively driven , conical fluid jets around non-rotating black holes and investigate the effects and significance of radiative acceleration , as well as radiation drag .

Methods : – We apply relativistic equations of motion in curved space-time around a Schwarzschild black hole for axis-symmetric 1-D jet in steady state , plying through the radiation field of the accretion disc .
Radiative moments are computed using information of curved space-time .
Slopes of physical variables at the sonic points are found using L ^ { \prime } Hôpital ’ s rule and employed Runge-Kutta ’ s 4 ^ { th } order method to solve equations of motion .
The analysis is carried out , using the relativistic equation of state of the jet fluid .

Results : – The terminal speed of the jet depends on how much thermal energy is converted into jet momentum and how much radiation momentum is deposited on to the jet .
Many classes of jet solutions with single sonic points , multiple sonic points as well as , those having radiation driven internal shocks are obtained .
Variation of all flow variables along the jet-axis has been studied .
Highly energetic electron-proton jets can be accelerated by intense radiation to terminal Lorentz factors \gamma _ { \small T } \sim 3 .
Moderate terminal speed v _ { \small T } \sim 0.5 is obtained for moderately luminous discs .
Lepton dominated jets may achieve \gamma _ { \small T } \sim 10 .

Conclusions : – Thermal driving of the jet itself and radiation driving by accretion disc photons produce a wide-ranging jet solutions staring from moderately strong jets to the relativistic ones .
Interplay of intensity and nature of radiation field and the energetics of the jet result in such a variety in jet solutions .
We show that radiation field is able to induce steady shocks in jets , one of the criteria to explain high energy power law emission observed in spectra of some of the astrophysical objects .