Vi är inte visade det uttryckligen
“I can’t prove this, but for this amount of power to be restrained until such time as it is released, or fired, there has to be some new, advanced kind of containment field.” He nodded toward Finn. “Our friend here confirms as much. The question is: What kind of field?”
“I heard that it involved the planet’s own magnetic field,” Finn told him, “and something more.”
“Yes, yes.” Statura was deep in thought. “A planetary magnetic field, even a strong one, would not be enough to contain the amount of energy that we have seen deployed. Also as you say, Finn, there is more involved. I am thinking some kind of oscillating field. If it oscillates rapidly enough, much less energy would be required to sustain it than if it was maintained at a steady state.”
(Alan Dean Foster TFA Novelization)
Ingen av detta förklarar varför oscillatorn är på ytan. Jag kan spekulera av några möjliga orsaker (desto mer är du från planetariska centrum, desto effektivare är oscillatorn som arbetar med planetmagnetiska fält?) Men det här är Lucasphysics vi hanterar, så ingen mängd vetenskaplig gissning kommer att hjälpa till.
Men det finns helt enkelt ingen anledning till att det inte kommer att vara på ytan .
Kom ihåg att planeten är skyddad med planetsköldar , vilket innebär att allt som har tillräckligt med eldkraft för att attackera planeten, har förmodligen tillräckligt med eldkraft för att skada eller förstöra de flesta installationerna där än.
Här är admiral Akbars analys:
“None of this is possible,” a downcast Ackbar postulated. “While the planet in question may at present be deliberately underdefended, the instant we move forces out of hiding and in its direction, the First Order will realize that we know the location of the weapon. They will mobilize everything in the vicinity to protect it. Their fleet is too large for us to fight our way through. Additionally, despite what Poe theorizes, I would wager they must already have at least a minimal planetary shield in place. Plainly, they can access the energy to support such a defense.” He looked at Finn, whose reply was not encouraging.