Light Curves Quiz

Quiz on Light Curves

Looking at an X-ray light curve of Cyg X-1 (your favorite source!) would allow you to
study what elements are present around the black hole.
Examine how the light from Cyg X-1 travels to Earth.
Study the effects of gravity on the light's path.
Probe how Cyg X-1's X-ray emission varies over time.
Observe inside the event horizon of the black hole.
You suspect that a young bright star is still embedded in the nebula where it was born. What is one way to determine if this is true?
Take the visible spectrum of the star and look for absorption by the nebula.
Take the visible light-curve of the star and see how it changes over time.
Take the visible spectrum of the star and look for emission by the nebula.
Take the visible light-curve of the star and see if it remains constant over time.
None of the Above.

Imagine the Universe is a service of the High Energy Astrophysics Science Archive Research Center (HEASARC), Dr. Nicholas White (Director), within the Laboratory for High Energy Astrophysics at NASA's Goddard Space Flight Center.

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Project Leader: Dr. Jim Lochner
All material on this site has been created and updated between 1997-2004.

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