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.
SEP IRA. SEP stands for simplified employee pension, and this kind of account is used primarily by the self-employed or small business owners. As the employer, you can contribute up to 25 percent of your income or $53,000, whichever is less, in 2015. These accounts are easier to set up than a solo 401(k).