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
Surface magnetic field of SU Aur (a young star of T Tauri type), reconstructed by means of Zeeman-Do
False-color imagery of the Sun, a G-type main-sequence star, the closest to Earth.
Internal structures of main sequence stars, convection zones with arrowed cycles and radiative zones
Center of Mass of a Binary Star System
X-Ray Pulses from Centaurus X-3
How to find the reaction for each of the beams below.