Eating habits and lifestyle choices arenât the only possible causes of indigestion. Sometimes, symptoms of indigestion indicate a serious problem in the upper digestive tract. Common digestive diseases that can cause indigestion include: acid reflux disease (also called GERD)
Define accretion disk: a disk of usually gaseous matter surrounding a massive celestial object (such as a black hole) in which the matter graduallyâ¦ a disk of usually gaseous matter surrounding a massive celestial object (such as a black hole) in which the matter gradually spirals in towardâ¦
X-rays aren't emitted by the black hole itself. Rather, gases that are accelerated at the event horizon generate X-rays. In the accretion disc, material is collecting and being sped up as it begins its fall into the gravity well.t is possible to detect black holes by the X-rays emitted at the event horizon. That's one way to see them. It's tricky, but the tools of the modern astronomer are nothing â¦ short of astonishing. Let's take a walk.