GasparZizou
Super Freak
Again, the black holes themselves are not luminous, the material and gases in their disks IS, that is a fact, and yes, anything past the event horizon doesn't come out, but the disks are OUTSIDE the event horizon, it CAN radiate light and heat, you can't see the black holes but you CAN see the disks, how do you think they get satellite images of accretion disks?Stellar massive black holes were never observed to have visible accretion disks. They aren't luminous, because visible light travels in arcs beyond the event horizon and doesn't radiate away. That's why they're called "black" holes - you can't see them.
Again, a quasar isn't a black hole, black holes produce quasars and not all accretion disks are quasars.Quasars (aka. black holes that are feeding), on the other hand, are visible, because the large amounts of mass being pulled, and the heat and light being generated lies in a region that's outside of the event horizon where the escape velocity is still less than the speed of light.
I'm getting at, is that there was no way the planets in Interstellar could have gotten their light from Gargantua. If it was super massive enough to feed and spiral the matter of a nebula or star well outside of its event horizon, then, possibly yes. But, it was a dormant (non-feeding hole), and it shouldn't have been luminous.
They are not getting the light from Gargantua, they're getting it from its disk.
Despite its invisible interior, the presence of a black hole can be inferred through its interaction with other matter and with electromagnetic radiation such as visible light. Matter falling onto a black hole can form an accretion disk heated by friction, forming some of the brightest objects in the universe
Just to recap, what exactly are you saying?
That Gargantua can't possibly have an accretion disk? It can.
That said disk can't provide heat and light? It can.
Edit: Just to clarify, I had to check back the image of Gargantua, and it wasn't feeding at all like I previously assumed. At least that would've made some sense as to how the planets were getting light.
They can get light from the disk.