Author Question: The short pulses and the discovery of the pulsar in the Crab Nebula are strong evidence that pulsars ... (Read 72 times)

notis · **on:** Jul 27, 2018

The short pulses and the discovery of the pulsar in the Crab Nebula are strong evidence that pulsars are _____.

A) red dwarfs
B) neutron stars
C) giant stars
D) yellow dwarfs

Question 2

In the context of binary pulsars, in Hercules X-1, _____.

A) matter flows from a star into an accretion disk around a dead star, producing gamma rays
B) a 6-solar-mass star and a neutron star orbit each other with a period of 28.7 days
C) several low-energy processes go on simultaneously
D) X-rays turn off when the neutron star is eclipsed behind the normal star