Multiple Choice
Which of the following hypothetical observations would contradict our theories about the formation and evolution of white dwarfs?
A) discovery of a white dwarf with a 1.5 Msun mass main- sequence companion
B) discovery of a white dwarf at the center of a planetary nebula
C) discovery of a white dwarf with a mass 1.5 times that of the Sun (1.5 Msun)
D) discovery of a white dwarf with a surface temperature of 6000 K
Correct Answer:

Verified
Correct Answer:
Verified
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