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
Venous Star
Artist's conception of the birth of a star within a dense molecular cloud.
A Rotating, Magnetized Neutron Star
X-Ray Pulses from Centaurus X-3
Radio Frequency Lesion
The surface temperature of the star is 6000 K. At what wavelength is its light output a maximum