Pair production is how a proton and electron are formed together ...

[tichca]

Pair production is how a proton and electron are formed together from two photons, with neutrinos also given off.
 
  Indicate whether the statement is true or false

Question 2

Discuss the observational phenomena that are associated with the existence of neutron stars.
 
  What will be an ideal response?

[peilian]

Answer to Question 1

FALSE

Answer to Question 2

If a neutron star is tilted in the right direction, from Earth it is seen as a pulsar. A pulsar appears as a rapidly flashing source of radio, and possibly optical, radiation. The flashes or pulses occur several times a second and are precisely timed. They are caused by the spin of the pulsar, as radiation is beamed out along its magnetic poles. The spin rate decreases very slowly with time as the pulsar loses energy. Also, Hubble Space Telescope recently found a very hot, tiny faint object close to the Sun, too small and hot to be a white dwarf.

[tichca]

Excellent

[xiaomengxian]

Gracias!