Multiple Choice
When a black hole is part of a close binary star system,the system may be a strong source of X-rays.Where do the X-rays come from?
A) The companion star,which is heated by the black hole
B) A disk of hot matter around the black hole
C) From the black hole itself
D) From planets that are captured by the black hole
Correct Answer:

Verified
Correct Answer:
Verified
Q2: A light curve is a plot showing<br>A)Luminosity
Q3: Under what conditions is it possible for
Q4: A type Ia supernova is caused by<br>A)The
Q5: The explosive burning of hydrogen on the
Q6: Gas shed by the companion of a
Q7: A pulsar will be produced if a
Q8: Which type of binary star is revealed
Q9: What kind of objects are thought to
Q10: A star that is discovered to be
Q11: Our determination of stellar masses comes from<br>A)Observations