Exploring Black Holes

What is a tidal disruption event (TDE)?

• A black hole emitting radiation

• A star being torn apart by a black hole's gravity

• A star being formed near a black hole

• A black hole merging with another black hole

What unusual behavior was observed in a black hole 800 million light years away?

• It erupted with plumes of gas every 8.5 days

• It absorbed a nearby star

• It changed its position in the galaxy

• It emitted a constant stream of light

What is a gravastar?

• A type of black hole with a singularity

• A star that has collapsed into a neutron star

• A black hole that emits light

• A theoretical star made of vacuum energy

What did Einstein's theory suggest about particles around black holes?

• They will be repelled by the black hole

• They will eventually plunge into the black hole

• They can maintain stable orbits indefinitely

• They will form new stars

How might dark matter assist in the merging of supermassive black holes?

• By acting as a cosmic matchmaker

• By increasing the mass of the black holes

• By absorbing light from the black holes

• By emitting gravitational waves

What recent discovery was made about intermediate mass black holes?

• They do not exist

• Two new intermediate mass black holes were found

• They are larger than supermassive black holes

• They are formed from neutron stars

What is unique about the quasar discovered by scientists?

• It has no accretion disc

• It is located in the Milky Way

• It emits winds at 36 million mph

• It is the oldest quasar ever found

What phenomenon occurs in the binary black hole system OJ 287?

• A single black hole emits jets

• A smaller black hole orbits a larger one every 12 years

• The system remains inactive

• The black holes repel each other

What is a blazar?

• A quasar with a jet pointing towards Earth

• A galaxy with no black holes

• A type of star

• A black hole that emits no light

What did the observations of OJ 287 confirm?

• The existence of a third black hole

• The presence of a smaller orbiting black hole

• The absence of any black holes

• The black hole's mass is decreasing