In case of a black hole, the direction of the Hawking radiation is from the horizon to the observer. The corresponding effect in the Rindler spacetime is the Unruh radiation.

Intuitively, a rapidly accelerating observer should face the Unruh radiation coming from the direction of motion, like a wind felt by a biker. The faster I accelerate forward, the stronger "wind" hits me in the face.

Yet, if the Unruh radiation comes from the horizon like the Hawking radiation does, it would hit the observer in the back. The faster I accelerate forward, the stronger "wind" hits me in the back. This seems counter-intuitive.

From which direction does the Unruh radiation hit an accelerating observer? In the face from the direction of motion or in the back from the Rindler horizon?