Questions:
1. The commonest kind of star in the universe is the principle sequence star. The identify comes from the truth that in a graph of a star’s brightness versus its color, essential sequence stars lie alongside a outstanding diagonal band. What is that this graph referred to as?
2. The abundance of components produced in a star will increase as much as the atomic variety of X, and then declines. This is partly as a result of X is the lightest factor for whose nuclear fusion produces much less power than it consumes. Name X.
3. When a star of low to medium mass runs out of helium, it might want to fuse carbon, which requires a core temperature of no less than 1 billion Ok. If the star lacks this temperature, its outer layers can be shed, abandoning an inert core. What is that this core referred to as?
4. When the core of a really heavy star collapses because of its personal gravity, it may possibly type a neutron star. What is the higher restrict of the mass of a neutron star referred to as?
5. For some very heavy stars, scientists have predicted an uncommon form of supernova after they run out of gasoline. In this occasion, the star undergoes a partial collapse, kickstarting a thermonuclear response that utterly blows up the star. What is such a supernova referred to as?
Visual:
Name this nebula, at whose centre lies a well-known pulsating neutron star that drastically superior scientists’ understanding of how massive stars die.
Answers:
1. Hertsprung-Russell diagram
2. Iron
3. White dwarf
4. Tolman-Oppenheimer-Volkoff restrict
5. Pair-instability supernova
Visual: Crab Nebula
