Which of the Following Hypothetical Observations Would Contradict Our Theories

question 51

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

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