A quasar is believed to be a supermassive black hole surrounded by an accretion disk. An accretion disk is a flat, disk-like structure of gas that rapidly spirals around a larger object, like a black hole, a new star, a white dwarf, etc.
Category: Special Enrollment Periods SEP. In certain situations, people with Medicare may be eligible for a Special Enrollment Period (SEP) allowing them to join a Medicare Advantage plan or Medicare Part D prescription drug plan, or switch to a different Medicare plan during the plan year.
You may join, switch or drop your current Medicare Prescription Drug plan during Medicare's Annual Enrollment Period (AEP). You may also make changes to your Medicare prescription drug coverage during a Special Enrollment Period (SEP), when certain non-routine events happen in your life. Enrollment in Medicare prescription drug coverage during the Annual Enrollment Period (AEP) takes place from October 15 through December 7. Some people are eligible to enroll during the Special Enrollment Period (SEP) if they meet one of several criteria.