What Is a "Hypernova," and How Do They Produce Observable

Q51: An X-ray burster occurs in a pulsar

Q52: Pulsars were discovered because they _.<br>A) provide

Q53: The first confirmed black hole, Cygnus X-1,

Q54: Neutron stars radiate most of their energy

Q55: A neutron star must have a mass

Q57: Gas falling into a black hole:<br>A) is

Q58: Why are black holes called "black"?

Q59: In a binary system containing two neutron

Q60: Extremely old pulsars that have experienced large

Q61: An astronomer examining a compact object could