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X-ray Binaries: Quiz
X-ray Binaries Quiz
Most of the brightest persistent sources in the X-ray sky are binary systems.
[A] True
[B] False
What powers the X-ray production from a binary system is:
[A] Thermonuclear heating
[B] Accretion of mass from one star onto the other
[C] Electricity
In low-mass X-ray binaries, mass exchange occurs primarily through:
[A] Stellar wind
[B] Sudden ejection of matter from the companion star
[C] Roche-lobe overflow
[D] None of the above
To be classified as a high-mass binary, the companion star must be:
[A] The same size as our Sun
[B] 10 times or more larger than our Sun
[C] A white dwarf
X-ray pulsars in a binary system allow the orbital parameters to be determined through:
[A] Measurements of the length of the rotation period of the neutron star
[B] Measurements of the mass of the companion star
[C] Measurements of the Doppler shift in the pulse arrival times