What causes the radio pulses of a pulsar?
A) The star vibrates.
B) As the star spins, beams of radio radiation sweep through space. If one of the beams crosses Earth, we observe a pulse.
C) The star undergoes periodic explosions of nuclear fusion that generate radio emission.
D) The star's orbiting companion periodically eclipses the radio waves emitted by the main pulsar.
E) A black hole near the star absorbs energy and re-emits it as radio waves.
Question 2
In the inner solar system, the largest surface features are found on the largest planets.
Indicate whether the statement is true or false
A star-forming region in the Large Magellanic Cloud.
Internal structures of main sequence stars, convection zones with arrowed cycles and radiative zones
Shooting star
How to find the reaction for each of the beams below.
A pipe that is 0.46 m long and open at both ends vibrates in the second overtone with a ...