The Universe - Pulsars and Quasars

The Universe Pulsars and Quasars Segment 1 1) What does pulsar stand for? Pulsating star 2) What is a pulsar? A collapsed rotating neutron star 3) What does the spin of a pulsar create? A massive magnetic field 4) Every pulsar has a unique ___spin______________ 5) What makes a pulsar slow down? Releasing energy as radiation Segment 2 6) What is a super nova remnant? Clouds of debris left over from an exploding star 7) What is an example of a super nova remnant that exploded in 1054 AD? Crab Nebula 8) Why does the crab nebula glow? The pulsar in the nebula is lighting up the debris. 9) What is an AU? The average distance between the Earth and the Sun, 93 million miles 10) What are magnetars? Pulsars with very powerful magnetic fields. Segment 3 11) What is special about pulsar radio waves? You can hear the rotation and frequency. 12) What is Micky Hart doing with pulsar sounds? Turning it to music 13) What was discovered in the 47 Tucan cluster? A collection of 22 unique pulsars. 14) Why is it unusual to have planets around pulsars? Usually planets are blasted apart when the star explodes Segment 4 15) What are quasars? A bright core of the galaxy with a black hole in the center 16) What does quasar stand for? Quasi Stellar Radio Source 17) What do you need to make a quasar? A black hole in the middle of a large source of stellar gas 18) Why could we not see a quasar in our own galaxy? Too much dust between us and the center of our galaxy Segment 5 19) 20) 21) 22) 23) How many quasars have been discovered so far? 1,000,000 What is a jet? Debris ejected from a quasar along the pulsar. How fast are the particles moving in a quasar? Nearly the speed of light What is a dragn? Double Radio Source Active Galactic Nucleus How are blasars, quasars, and pulsars similar? They depend upon the angle we are viewing them 24) How old are the oldest quasars? They date from shortly after the big bang.